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Ingredient guide
hydroxysuccinimide
In short
Hydroxysuccinimide is a chelating ingredient commonly used in eye creams to help reduce the blue‑purple cast linked with pigment from blood breakdown. It can make under‑eye shadows look less pronounced.
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Works for
Tone
Skin type
Sensitive
Best used
Anytime
What it is
Iron chelator used in under-eye formulations. May reduce the blue-purple appearance of dark circles caused by haemoglobin degradation products in the periorbital area.
Also found as
Related
Where to find it
The Ordinary Caffeine Solution 5% + EGCG
The Inkey List Caffeine Eye Cream
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Common questions
It binds iron residues from haemoglobin by‑products, which can soften the look of certain dark circles.
It is generally well tolerated and often paired with gentle hydrating ingredients.
It appears in targeted under‑eye serums and creams aimed at reducing the appearance of dark shadows.
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Personal guidance only · For clinical concerns, see a dermatologist.