As with many trending ingredients, there is some real science behind GHK-Cu, but there is also a lot of exaggeration
Sources: Sonthalia et al., Indian J Dermatol Venereol Leprol 2016 , Sonthalia et al., Dermatol Pract Concept 2018 , Narrative review, 2025 Global & Indian Trends (2024): Glutathione-based skin lightening treatments are part of a $10+ billion global skincare market India saw a 35% rise in demand for skin-brightening injectables over the past two years Increasing popularity among both men and women aged 18 to 45 Source: ISAPS Global Survey 2024 Dr
Why Should I Apply Retinoids at Night
NAC can help to reduce these levels of homocysteine
And as a consumer it's very hard to find out what to choose correctly and people hide behind a great technologies that that exists in the world and said, Oh, my, my product uses this technology
Longer studies are needed