Cited by 21Consumer Perception and Purchasing BehaviorSkin Protection and AgingContact Dermatitis and Allergies

Knowledge and Behavior Regarding Cosmetics in Koreans Visiting Dermatology Clinics

Open access
Cho, Soyun, Oh, Sohee, Kim, Nack In, Ro, Young Suck, Kim, Joung Soo, Park, Young Min, Park, Chun Wook, Lee, Weon Ju +3 more·2017·Annals of Dermatology

Abstract

BACKGROUND: Cosmetics can affect the skin condition profoundly, and yet no survey has been performed in Koreans visiting dermatology clinics. OBJECTIVE: To assess knowledge and consumer behavior regarding cosmetics in Koreans visiting dermatology clinics. METHODS: A questionnaire consisting of 43 questions concerning demographics and use/knowledge/selection/purchase of cosmetics was given to patients and accompanying persons who visited dermatologic clinics in university and private clinic settings. RESULTS: In total 1,015 subjects (73.2% females, mean age 32.5 years) completed the survey. Education level was college or higher in 72.8%. Thirty-one percent had been diagnosed with a skin disorder, atopic dermatitis and seborrheic dermatitis being the most frequent diagnoses (33.7% and 16.8%, respectively). The frequency of makeup/sunscreen/functional cosmetics use, amount of sunscreen use, recognition of functional cosmetics, and knowledge of shelf life were significantly correlated with level of education. Among "functional cosmetics," whitening products were used most frequently (29.2%). Regardless of education level, 79.2% purchased cosmetics without checking ingredients, and 85.7% were unaware of the all-ingredient-labelling regulations, and yet subjects considered ingredient the most important factor when purchasing a product. CONCLUSION: Outpatient subjects in their twenties and thirties are the most knowledgeable about cosmetics in Korea.

AI snapshot

Written from the paper’s full text.

TL;DR

In a survey of 1,015 Koreans visiting dermatology clinics, most used cosmetics but many lacked knowledge about ingredients and labelling. Subjects in their twenties and thirties were the most knowledgeable about cosmetics, while education correlated with sunscreen use and functional cosmetic use.

Key findings

  • Among 1,015 subjects (73.2% female, mean age 32.5 years; 72.8% college graduates or higher), 70.9% used both skin care and colour cosmetics, 12.0% used only skin care products, and 17.1% used no cosmetics. The most frequently used skin care products were toner/skin lotion (93.4%) and sunscreen (90.9%); sunscreen use was only in summer for 55.6%, never for 19.4%, almost everyday for 10.0%, and everyday for 2.1%, and the most common amount applied was a 1-cm diameter (55.3%).
  • Functional cosmetics had been heard of by 89.5% and used by 78.3%; among functional cosmetics, whitening products were used most frequently (29.2%). Adverse cosmetic events after functional products were reported by 27.9%, most often from whitening products (26.2%) and anti-acne products (24.1%), and were more frequent in females than males (30.0% vs. 14.9%, p<0.001).
  • Ingredient and labelling knowledge was low: 79.2% purchased cosmetics without checking ingredients, 85.7% were unaware of all-ingredient-labelling regulations, only 14.3% knew about the law, and 10.2% had used the labelling information. Also, 79.5% did not know what paraben was, 55.8% thought paraben was bad for the body, 53.5% did not wash makeup tools regularly, and only 39.7% knew the meaning of the period-after-opening symbol.
  • Private clinic patients were younger than university hospital patients (30.8 vs. 33.9 years, p<0.001) and more often had used functional cosmetics, had ingredients they avoided, and had used all-ingredient-labelling information (p<0.001); more private clinic patients also thought paraben was bad (35.6% vs. 14.2%, p<0.001) and knew the period-after-opening symbol (52.7% vs. 34.1%, p<0.001).

Methods

  • A 43-question questionnaire on demographics and use, knowledge, selection, and purchase of cosmetics was developed by the first two authors and given to patients and accompanying persons visiting dermatologic clinics in 7 university and 3 private clinic settings.
  • A total of 1,015 subjects completed the survey. Statistical analysis used χ²-test or Fisher’s exact test for categorical variables and Mann-Whitney or Kruskal-Wallis tests for continuous variables, with IBM SPSS Statistics ver. 20.0 and R ver. 3.2.2; p-values <0.05 were considered statistically significant.

Limitations

  • The paper states selection bias: subjects do not represent the entire Korean population; university respondents consisted mostly of patients with skin problems, private clinic respondents consisted mostly of aesthetically driven individuals interested in improving skin appearance, and geographically the majority of respondents were from Seoul.
  • Evident from the text: this is a cross-sectional, self-reported questionnaire survey without general-population comparison; the authors note it would be interesting to compare data from outpatients and the general population in a future study.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.5021/ad.2017.29.2.180

Cites

14 of 14 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 16 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    70.9% of subjects used both skin care and colour cosmetic products.

    “70.9% of the subjects used skin care and colour cosmetic products”
    Quote in the paperNot a substantial claim
  • Findingown data

    There was a significant difference between men and women in thinking eye cream necessary: 50.4% of women thought it necessary versus 15.5% of men (p<0.001).

    “50.4% of women thought it necessary to use eye cream whereas 15.5% of men thought that way (p<0.001)”
    Quote in the paperNot a substantial claim
  • Findingown data

    The amount of sunscreen used on the face was most frequently 1-cm diameter (55.3%), followed by 0.5 cm (19.4%), 1.8 cm (13.0%), 2.4 cm (10.3%), and 2.65 cm (2.0%).

    “The amount of sunscreen used on the face was most frequently 1-cm diameter (55.3%), followed by 0.5 cm (19.4%), 1.8 cm (13.0%), 2.4 cm (10.3%), and 2.65 cm (2.0%)”
    Quote in the paperNot a substantial claim
  • Findingown data

    Women wore sunscreen more frequently than men (p<0.001).

    “Women wore sunscreen more frequently than men (p<0.001”
    Quote in the paperNot a substantial claim
  • Findingown data

    More patients visiting private clinics had used functional cosmetics than patients visiting university hospitals (p<0.001).

    “More patients visiting private clinics had used functional cosmetics (p<0.001)”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim. 23
  • May combine two claims. 37
  • The quote only partly states this claim. 1
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Findingown data

    Among subjects with a prior dermatologic diagnosis, atopic dermatitis was the most common (33.7%), followed by seborrheic dermatitis/acne/folliculitis (16.8%).

    “atopic dermatitis was by far the most common (33.7%), followed by seborrheic dermatitis/acne/folliculitis (16.8%)”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Findingown data

    Among the survey subjects, 73.2% were female and 26.8% were male.

    “73.2% were female and 26.8% male”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    A total of 1,015 subjects completed the survey.

    “A total of 1,015 subjects completed the survey”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Findingown data

    The subjects' ages ranged from 12 to 73 years, with a mean age of 32.5 years.

    “The ages of subjects ranged from 12 to 73 years, with a mean age of 32.5 years”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    31% of subjects had previously been diagnosed with a dermatologic condition.

    “Thirty-one percent of the subjects had previously been diagnosed with a dermatologic condition”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    72.8% of subjects had an education level of college graduate or higher.

    “the majority were college graduates or higher (72.8%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    None of the patients visiting private clinics were using cleansing oil, whereas 31.3% of those visiting university hospitals were using it.

    “none of the patients visiting private clinics were using cleansing oil, whereas 31.3% of those visiting university hospitals were using it”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    The most frequently used skin care product overall was toner/skin lotion (93.4%), followed by sunscreen (90.9%), essence (58.0%), and moisturizing cream (50.5%).

    “the most frequently used skin care product was toner/skin lotion (93.4%), followed by sunscreen (90.9%), essence (58.0%) and moisturizing cream (50.5%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    The product both men and women were most in need of was effective moisturizers (26.7%), followed by whitening products (22.0%).

    “The product both men and women were most in need of was effective moisturizers (26.7%), followed by whitening products (22.0%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    56.0% of men had never used any functional cosmetics before, in contrast to 15.6% of women.

    “56.0% of men had never used any functional cosmetics before, in contrast to 15.6% of women”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Frequency of sunscreen use was: only in summer 55.6%, never 19.4%, only when one remembers 13.0%, almost everyday 10.0%, and everyday 2.1%.

    “Frequency of sunscreen use was as follows: only in the summer (55.6%), never (19.4%), only when one remembers (13.0%), almost everyday (10.0%), and everyday (2.1%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Higher education level was associated with more frequent sunscreen use (p<0.005) and a larger amount of sunscreen applied (p<0.05).

    “The higher the education level, the more frequent was the use of sunscreen (p<0.005) and the larger the amount of sunscreen applied (p<0.05)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In men, the most frequently used skin care product was toner (94.6%), followed by sunscreen (83.7%) and milk lotion (31.8%).

    “In men, the most frequently used skin care product was toner (94.6%), followed by sunscreen (83.7%) and milk lotion (31.8%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Among functional cosmetics, women used whitening products most frequently (29.5%), followed by anti-wrinkle products (23.1%) and moisturizers (18.0%).

    “women used whitening products most frequently (29.5%), followed by anti-wrinkle products (23.1%) and moisturizers (18.0%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In women, BB cream was used most frequently (57.0%), followed by lipstick (52.6%), eye shadow (48.8%), eyeliner (48.1%), lip glow/lip gloss (44.4%), eyebrow pen/pencil (42.2%), powder/pact (41.7%), and mascara (40.5%).

    “In women, BB cream was used most frequently (57.0%), followed by lipstick (52.6%), eye shadow (48.8%), eyeliner (48.1%), lip glow/lip gloss (44.4%), eyebrow pen/pencil (42.2%), powder/pact (41.7%), and mascara (40.5%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    The average age of patients visiting private clinics was 30.8 years, significantly younger than the 33.9 years of patients visiting university hospitals (p<0.001).

    “The average age of patients visiting private clinics was 30.8 years, which was significantly younger than that (33.9 years) of the patients visiting university hospitals (p<0.001)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In men, anti-acne products were used most frequently (31.1%), followed by whitening products (26.1%) and moisturizer (16.0%).

    “in men, anti-acne products were used most frequently (31.1%), followed by whitening products (26.1%) and moisturizer (16.0%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    More subjects in their twenties and thirties often knew what paraben was (p<0.001) and thought that paraben was detrimental to health (p<0.001).

    “more subjects in their twenties and thirties often knew what paraben was (p<0.001) and thought that paraben was detrimental to health (p<0.001)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    The older the subject, the more important ingredient was considered; the younger the age, the more important were recommendations by friends or bloggers.

    “The older the subject, the more importantly was ingredient considered; the younger the age, the more important was the recommendations by friends or bloggers”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    There was a significant difference between men and women in knowledge of the PAO symbol (p<0.001), with 22.1% of men and 43.0% of women having knowledge.

    “There was a significant difference between men and women in knowledge of the symbol (p<0.001), with 22.1% of men and 43.0% of women having knowledge”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Men were less knowledgeable than women that allergies can develop anew to a product used before (p<0.001), with 49.2% of men versus 31.6% of women responding that no allergies can develop anew.

    “Men were less knowledgeable about this fact than women (p<0.001), with 49.2% responding that no allergies can develop anew to a product they had been using before, vs. 31.6% of women”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In men, price (34.1%) was by far the most important factor in product selection, followed by recommendation by friends or bloggers (20.7%) and recommendation by sales person (15.6%).

    “the price (34.1%) was by far the most important factor in men, followed by recommendation by friends or bloggers (20.7%) and recommendation by sales person (15.6%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Younger generation preferred brand shops whereas older generation preferred department stores.

    “younger generation preferred brand shops whereas older generation preferred department stores”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Knowledge of the all-ingredients-labelling law did not correlate with education level but was inversely correlated with age, with more subjects in their twenties (18.6%) and thirties (15.4%) having knowledge than other age groups.

    “This knowledge did not correlate with the level of education but was inversely correlated with age, with more subjects in their twenties (18.6%) and thirties (15.4%) having knowledge than other age groups”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In women, the most important factor affecting product selection was ingredients (28.8%), followed by recommendation by friends or bloggers (27.2%), price (17.2%), and recommendation by sales person (10.8%).

    “In women, the most important factor affecting the selection of a product was ingredients (28.8%), recommendation by friends or bloggers (27.2%), price (17.2%), and recommendation by sales person (10.8%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    45.1% of subjects spent $10~50 per month on skin care products and 43.4% spent $10~50 per month on makeup products.

    “45.1% and 43.4% of subjects spent $10~50 per month on skin care and makeup products, respectively”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    35.0% of subjects preferred domestic cosmetic products, 26.5% preferred imported ones, and 38.5% had no preference.

    “35.0% preferred domestic products, 26.5% preferred imported ones, and 38.5% had no preference”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In the present survey, almost 80% of subjects had no knowledge of paraben, and among those who did, opinion was divided whether paraben is detrimental to health or not.

    “almost 80% of subjects were shown not to have any knowledge of paraben, and among those who did, opinion was divided whether paraben is detrimental to health or not”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

    Findingnone given

    Women do not prefer internet or large retail stores when purchasing skin care or cosmetic products, whereas men feel more comfortable or find it more convenient to shop online or in large retail stores.

    “women do not prefer internet or large retail stores when purchasing skin care or cosmetic products, whereas men feel more comfortable or find it more convenient to shop online or in large retail stores”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Parabens are ubiquitous, with low levels detected in rivers, drinking water sources, soil, house dust, human tissues, and bodily fluids.

    “parabens are ubiquitous, with low levels being detected in rivers, drinking water sources, soil, house dust, human tissues, and bodily fluids910”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [9] Pérez, 2012, Anal Bioanal Chem source
    • cites [10] Frederiksen, 2011, J Expo Sci Environ Epidemiol source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Public pressure has persuaded several governments to enforce regulations on the use of parabens in consumer products.

    “Public pressure has persuaded several governments to enforce regulations on the use of parabens in consumer products8”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [8] Kirchhof, 2013, Skin Therapy Lett
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    The higher knowledge of the all-ingredients-labelling law among younger adults might be associated with easier accessibility to internet and smartphone applications.

    “This might be associated with easier accessibility to internet and smartphone applications by younger adults than more mature population”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Concerns have been raised regarding paraben due to the possible association of the compound with breast cancer.

    “Concerns have been raised regarding paraben due to the possible association of the compound with breast cancer7”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] Darbre, 2004, J Appl Toxicol source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    The trend of people using cosmetics at an earlier age may be associated with internet and social media use, peer pressure, and the influence of young Korean pop stars and actors.

    “This may be associated with internet and social media use where ordinary individuals post their photos and receive instantaneous feedback on a global level, as well as peer pressure and the influence of young Korean pop stars and actors whose skin is “picture perfect.””
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Another Danish study reported that non-compliance with instructions on reading ingredient labelling is not only a question of patients' lack of knowledge but also the result of persons not possessing the resources necessary to act in accordance with medical instructions.

    “Another Danish study reported that non-compliance with instructions on reading the ingredient labelling is not only a question of patients' lack of knowledge but also the result of persons not possessing the resources necessary to act in accordance with the medical instructions6”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [6] Noiesen, 2004, Contact Dermatitis source
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In that Danish series, more patients with allergies to preservatives than to fragrance experienced major difficulties with ingredient label reading, probably because of the necessity of also being aware of formaldehyde releasers.

    “more patients with allergies to preservatives than to fragrance experienced major difficulties with ingredient label reading, probably because of the necessity of also being aware of formaldehyde releasers5”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [5] Noiesen, 2007, Contact Dermatitis source
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In a Danish series, 46% of patients with contact allergy to preservatives and fragrances had difficulty reading the ingredient labelling of cosmetics, and this was significantly correlated to low educational level.

    “46% of Danish patients with contact allergy to preservatives and fragrances had difficulty reading the ingredient labelling of cosmetics, and this was significantly correlated to low educational level5”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [5] Noiesen, 2007, Contact Dermatitis source
  • Probably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing). May combine two claims.

    Interpretationreasoning

    The association between higher education and sunscreen use may be related to higher health awareness or higher income and therefore better affordability.

    “this may be associated with higher health awareness or higher income and therefore better affordability”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Parabens bind human estrogen receptors with affinities 10,000 to 1,000,000 times less than estradiol.

    “Parabens bind human estrogen receptors with affinities 10,000 to 1,000,000 times less than estradiol1112”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [11] Routledge, 1998, Toxicol Appl Pharmacol source
    • cites [12] Blair, 2000, Toxicol Sci source
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationnone given

    Men using cleansing foam much more frequently than cleansing oil, unlike women, probably reflects the oilier complexion of men in general.

    “The fact that men use cleansing foam much more frequently than cleansing oil, unlike women, probably reflects the oilier complexion of men in general”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation

    The Danish finding about resources for acting on ingredient labelling may also apply to Korean patients.

    “This may well apply to Korean patients, too”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Korea and the EU allow a maximum paraben concentration of 0.4% for any individual paraben and 0.8% for total paraben concentrations; the US and Canada have no laws regulating paraben concentrations.

    “Korea and the EU allow a maximum paraben concentration of 0.4% for any individual paraben and 0.8% for total paraben concentrations1416; in the US and Canada, there are no laws regulating paraben concentrations”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [14] Andersen, 2008, Int J Toxicol

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites [16] 2008

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Parabens are degraded once applied on the skin, and even if absorbed percutaneously, they are hydrolysed in the body and therefore are not likely to accumulate in tissues.

    “Parabens are degraded once applied on the skin, and even if they are absorbed percutaneously, they are hydrolysed in the body and therefore are not likely to accumulate in tissues1415”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [14] Andersen, 2008, Int J Toxicol

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites [15] Soni, 2005, Food Chem Toxicol source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Several studies have concluded that there is no causal relationship between parabens and breast cancer.

    “Several studies have concluded that there is no causal relationship between parabens and breast cancer13”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [13] Witorsch, 2010, Crit Rev Toxicol source
  • May combine two claims.

    Interpretationnone given

    Regarding expenditure, men prefer cheaper products whereas women prefer products with good ingredients.

    “Regarding expenditure, men prefer cheaper products whereas women prefer products with good ingredients”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Governmental regulatory agencies have agreed that the current concentrations of parabens are safe for consumer use.

    “Governmental regulatory agencies have agreed that the current concentrations of parabens are safe for consumer use8”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [8] Kirchhof, 2013, Skin Therapy Lett
  • The quote only partly states this claim.

    Interpretationown data

    Subjects in their twenties and thirties are the most knowledgeable about cosmetics in Korea.

    “subjects in their twenties and thirties are the most knowledgeable about cosmetics in Korea”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    Geographically, the majority of respondents were from Seoul.

    “Geographically the majority of respondents were from Seoul”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    Women apply sunscreen more frequently than men, and younger and more educated subjects use it more frequently and more generously; most apply 1-cm size.

    “Women apply sunscreen more frequently than men, and younger and more educated subjects use it more frequently and more generously; most apply 1-cm size”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    Regardless of level of education, most subjects (79.2%) purchase cosmetics without checking ingredients, and most (85.7%) do not know about the all-ingredients-labelling law.

    “Regardless of level of education, most subjects (79.2%) purchase cosmetics without checking ingredients, and most (85.7%) do not know about the all-ingredients-labelling law”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    Among functional cosmetics, whitening products (29.2%) are used most frequently, and yet the product most needed is an effective moisturizer (26.7%).

    “Among “functional cosmetics,” whitening products (29.2%) are used most frequently, and yet the product most needed is an effective moisturizer (26.7%)”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductreasoning

    The study has some selection bias because the subjects do not represent the entire Korean population; university respondents consisted mostly of patients with skin problems, and private clinic respondents consisted mostly of aesthetically driven individuals interested in improving skin appearance.

    “The limitations of the study include some selection bias since the subjects do not represent the entire Korean population; the university respondents consisted mostly of patients with skin problems, and private clinic respondents consisted mostly of aesthetically driven individuals who were interested in improving their skin appearance”
    Quote in the paperNot a substantial claim
52 of 52
  • The paper relies on this without support.

    No survey has been performed in Koreans visiting dermatology clinics regarding cosmetics.

    “no survey has been performed in Koreans visiting dermatology clinics”
  • The paper relies on this without support.

    There exists no basic data on consumer behavior regarding cosmetics use in Korea.

    “there exists no basic data on consumer behavior regarding cosmetics use in Korea”
  • The paper relies on this without support.

    Cosmetics can affect the skin condition profoundly.

    “Cosmetics can affect the skin condition profoundly”
  • The paper relies on this without support.

    Use of many cosmetic products can lead to a higher chance of developing allergic or irritant contact dermatitis.

    “Since use of many cosmetic products can lead to a higher chance of developing allergic or irritant contact dermatitis”
4 of 4

Cites

Flagged first, then by citations

Research works printed but not linked: 4

  1. 1993, OJ L151, 23
  2. Kirchhof, 2013, Skin Therapy Lett, 18, 5
  3. Andersen, 2008, Int J Toxicol, 27, 1
  4. 2008, Notification No. 2008-57 on designation of cosmetics ingredients

Cited by

Sorted by citations

Authors
Cho, S., Oh, S., Kim, N. I., Ro, Y. S., Kim, J. S., Park, Y. M., Park, C. W., Lee, W. J., Kim, D. K., Lee, D. W., & Lee, S. J.
Affiliations
  • Seoul National University (KR)
  • Kyung Hee University (KR)
  • Hanyang University Seoul Hospital (KR)
  • Hanyang University Guri Hospital (KR)
  • The Catholic University of Korea Seoul St. Mary's Hospital (KR)
  • Hallym University Kangnam Sacred Heart Hospital (KR)
  • Kyungpook National University Hospital (KR)
  • DK Skin Clinic, Seoul, Korea.
  • CNP Skin Laser Clinic, Seoul, Korea.
  • Arumdaun Nara Clinic, Seoul, Korea.
Corresponding author
Cho, Soyun
Venue
Annals of Dermatology
Publisher
XMLink
Published
2017
Volume
29
Issue
2
Pages
180
ISSN
  • 1013-9087 (ISSN-L)
  • 2005-3894
OpenAlex
W2604855961
Cited by
21
References
14
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 1
FWCI
1.98
Type
journal article
Language
en
Open access
Locations
  • Annals of Dermatology (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
Korean Dermatological Association
Topics
  • Social Sciences › Business, Management and Accounting › Marketing › Consumer Perception and Purchasing Behavior
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Dermatology › Contact Dermatitis and Allergies
Keywords
functional cosmetics, sunscreen use, whitening products, atopic dermatitis, seborrheic dermatitis, dermatology patients, educational attainment, Korea

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-31.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-31.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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