Glutathione
Ingredient Info
Glutathione is a naturally occurring antioxidant compound found inside cells that helps protect skin from damage and oxidative stress. It's used in skincare products for its potential to reduce dark spots and even out skin tone, though its effectiveness in topical forms remains under investigation.
Benefits
- Antioxidant protection against free radical damage
- May help reduce the appearance of dark spots and hyperpigmentation
- Supports skin's natural defense mechanisms
Potential concerns
- Limited evidence of effectiveness in topical skincare products; most studied forms are oral or injectable
- Intravenous glutathione injections have been flagged by regulatory bodies (FDA Philippines) for safety concerns when used off-label
- Long-term results, maintenance protocols, and durability of effects remain unclear
Science: Three randomized controlled trials support topical and oral glutathione for skin lightening with a good safety profile, but researchers note significant gaps in evidence regarding treatment duration, longevity of effects, and optimal use protocols. Much of the marketing hype around this ingredient outpaces current scientific validation.
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