Cysteamine HCl

BrighteningAntioxidant

INCI: Cysteamine HCl

In short · TL;DR

Category

Brightening

Effect

Suppresses melanin production and addresses the appearance of uneven color.

Concentration

Reports of around 5% etc. in research rinse-off formulations. Cosmetic loading is formulation-dependent and requires confirmation.

Effect

Suppresses melanin production and addresses the appearance of uneven color.

Mechanism

An endogenous aminothiol. Reported to suppress melanin production through copper chelation, reducing action, and effects on the tyrosinase/peroxidase system.

Typical concentration

Reports of around 5% etc. in research rinse-off formulations. Cosmetic loading is formulation-dependent and requires confirmation.

Onset

Continued use from several weeks.

Cautions

A characteristic sulfur-like odor and transient irritation may occur. A patch test is recommended.

Evidence & references

参考文献: Effect of cysteamine hydrochloride-loaded liposomes on skin depigmenting and penetration（PubMed PMID:34822973 https://pubmed.ncbi.nlm.nih.gov/34822973/）

This page is reference information and does not guarantee efficacy. Figures vary by test conditions (in vitro / manufacturer / concentration). It does not indicate pharmaceutical efficacy.

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