Licochalcone A in Combination with Salicylic Acid as Fluid Based and Hydroxy-Complex 10% Cream for the Treatment of Mild Acne: A Multicenter Prospective Trial
Open accessAbstract
Purpose: Topical cosmetic agents if correctly prescribed and used may improve outcomes in acne therapy. The aim of this study was to assess the efficacy and tolerability of a new daily cosmetic regimen in the treatment of mild facial acne. Patients and methods: A multicenter, prospective, observational, clinical study was conducted on 91 adult patients with mild acne. Subjects were instructed to apply a fluid containing Licochalcone A/Salicylic acid/L-Carnitine in the morning and a cream with Licochalcone A/Hydroxy-Complex 10% at bedtime for 8 weeks. The efficacy was clinically evaluated by Global Acne Grading System (GAGS) score and by comedones/papules lesions count and by instrumental assessment (Sebutape TM and Reveal Photo Imager/VISIA-CR™ imaging) at baseline, at 4 and 8 weeks. Results: At 4 weeks a statistically significant reduction from baseline of GAGSwas observed. In addition, the mean total count of comedones and papules was significantly reduced by 41% and 45%, respectively, from baseline along with a significant reduction of mean sebum of 47%. At 8 weeks, a further statistically significant reduction from baseline of GAGS, total count of comedones and papules (64% and 71%, respectively), along with an additional sebum reduction of about 52% was also recorded. Conclusion: Our results suggest that the daily regimen based on Licochalcone A with Salicylic acid/L-Carnitine as fluid or with Hydroxy-Complex 10% as cream represent an interesting cosmetic approach for treating mild acne. Keywords: mild acne, topical cosmetic, licochalcone A, salicylic acid, hydroxyl-complex
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The remaining three non-randomized studies on global acne severity with no comparators reported 40%-80% improvement in global scoring.
“the remaining three with no comparators reported 40%–80% improvement in global scoring.”
From International expert consensus recommendations for the use of dermocosmetics in acne. (2025) · cites this paper as [23]
Table 1 in the Results (page unavailable) reports an overall GAGS score of 11.6 at baseline and 8.2 at eight weeks—about a 29% improvement, not 40%–80%. The reported 64% and 71% reductions refer to comedone and papule counts, not global acne severity scoring. (LLM, conf=0.88)
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Experimental — accuracy not yet measuredTwo non-randomized studies on global acne severity reported significantly superior improvements in global assessment versus comparators or placebo.
“Two of the non‐RCTs reported significantly superior improvements in the global assessment versus comparators or placebo”
From International expert consensus recommendations for the use of dermocosmetics in acne. (2025) · cites this paper as [23]
The Results report a statistically significant improvement in Global Acne Grading System scores from baseline. The Statistical Analyses section specifies comparisons against baseline, not against a comparator or placebo; this paper therefore does not support the claimed superiority over those groups. It is one study, so it also cannot itself establish a finding from two studies. (LLM, conf=0.90)
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- Authors
- Dall'Oglio, F., Fabbrocini, G., Tedeschi, A., Donnarumma, M., Chiodini, P., & Micali, G.
- Affiliations
- Federico II University Hospital (IT)
- University of Catania (IT)
- University of Campania "Luigi Vanvitelli" (IT)
- Corresponding author
- Micali, Giuseppe
- Venue
- Clinical, Cosmetic and Investigational Dermatology
- Publisher
- Informa UK Limited
- Published
- 2020-01
- Volume
- Volume 12
- Pages
- 961-967
- ISSN
- 1178-7015 (ISSN-L)
- PMC
- PMC6997230
- OpenAlex
- W2998113785
- Cited by
- 15
- References
- 29
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 1
- FWCI
- 1.28
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Clinical Cosmetic and Investigational Dermatology (publishedVersion, cc-by-nc)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Archivio Istituzionale della Ricerca - Università degli Studi della Campania "Luigi Vanvitelli" (submittedVersion)
- Topics
- Health Sciences › Medicine › Dermatology › Acne and Rosacea Treatments and Effects
- Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
- Health Sciences › Medicine › Dermatology › Dermatologic Treatments and Research
- Keywords
- licochalcone A, salicylic acid, mild acne, L-carnitine, sebum reduction, Global Acne Grading System, facial acne
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