In Vitro and In Vivo Assessment of an Innovative Peeling System with Azelaic and Tranexamic Acids for Targeted Hyperpigmentation Reduction
Bibliographic record
Abstract
INTRODUCTION: Melanin, derived from tyrosine, plays a pivotal role in skin pigmentation through melanogenesis. Disruptions in this process lead to hyperpigmentation, a condition affecting skin tone and quality of life. Current treatments, including chemical peels, have limitations, highlighting the need for novel solutions. Here, we present an innovative peeling system, comprising a masque and moisturizer, formulated with a novel blend of acids, including azelaic acid (AZA) and tranexamic acid (TXA), alongside known brightening and penetration-enhancing agents for a comprehensive solution to target hyperpigmentation. METHODS: In vitro studies assessed the ability of the novel moisturizer to inhibit ultraviolet-A (UVA)-induced melanin accumulation in human melanocytes. In a single-center, controlled study, we assessed the efficacy of the peeling system in 33 healthy female participants aged 30-55 years with moderate-to-severe hyperpigmentation over a 6-week treatment period. Skin condition was assessed using clinical photography, 3D skin topography, and clinical expert evaluation (CEE) at baseline and 6 weeks post-treatment. Participants completed a self-evaluation questionnaire at 6 weeks post-treatment. RESULTS: In vitro findings demonstrated a concentration-dependent inhibition of melanin accumulation by the novel moisturizer. In vivo, significant reductions in dark spot number, area, and perimeter were observed at week 6, along with improvements in skin homogeneity, contrast, and brightness. Skin tone and roughness parameters also improved significantly from baseline. These findings were supported by self-evaluation findings and improvements in CEE parameters. CONCLUSION: These data provide evidence for the efficacy of the innovative peeling system in reducing the appearance of hyperpigmentation over a 6-week treatment regimen in females with healthy skin and moderate-to-severe hyperpigmentation. The inclusion of AZA and TXA within the peeling system, along with active brightening and penetration-enhancing ingredients, may have synergistically facilitated the observed improvements. This multifaceted approach may address hyperpigmentation at the source, contributing to overall improvements in the appearance of the skin.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".