brightening trending 2025

Glutathione · 글루타치온

INCI: Glutathione

Also known as: GSH · Reduced Glutathione

Updated May 2026. Based on public cosmetic-science references (INCI Decoder, CosIng EU, EWG Skin Deep, Paula's Choice) plus Korean product catalog mapping. Editorial summary — not regulatory or medical advice.

What it is

Glutathione is a tripeptide antioxidant found naturally in human cells. In topical cosmetics it is positioned for tone-evening and a brightening claim, often featured in serums and ampoules in the K-beauty brightening category. Topical efficacy depends heavily on formulation stability; oral and IV use are debated separately and outside our scope.

한국어 설명

글루타치온은 세포 내 천연 트리펩타이드 항산화제다. 외용 화장품에서는 톤 외관 개선·브라이트닝 포지션으로 K-뷰티 미백 카테고리의 세럼·앰플에 자주 사용된다. 외용 효능은 포뮬러 안정성에 크게 의존하며, 경구·정맥 투여는 별개 영역이다(본 사이트 범위 외).

Best for

  • uneven tone
  • dullness
  • brightening focus

Pairs well with

  • Vitamin C
  • Niacinamide
  • Tranexamic Acid

Products with Glutathione (198)

Catalog matches ranked by data completeness and reviews.

Related answer guides

External references

We do not republish proprietary ingredient databases. Public references above are good starting points for verification — treat this page's structured description as our editorial summary, not a primary regulatory source.

Educational summary for skincare shoppers. Not medical advice. For pregnancy, treatment-related, or condition-specific decisions, consult a qualified clinician.