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Ingredient guide
dipeptide-4
In short
Dipeptide-4 is a small peptide that can act as a precursor to glutathione, one of the skin’s natural antioxidants. Early findings suggest it may influence pigment pathways linked to colour balance.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Tone
Best used
Anytime
What it is
Aspartate-cysteine dipeptide that serves as a glutathione precursor. May enhance endogenous antioxidant capacity and support pheomelanin pathway over eumelanin.
Also found as
Related
Common questions
It may help support the skin’s own antioxidant systems and shift pigment pathways, which can influence overall tone appearance.
People interested in improving uneven-looking tone may find it useful, though evidence is still limited.
It usually appears in serums or tone-focused formulas, often combined with other antioxidant or brightening ingredients.
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Personal guidance only · For clinical concerns, see a dermatologist.