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Ingredient guide
astaxanthin
In short
Astaxanthin is a potent microalgae‑derived antioxidant that helps visibly reduce redness, uneven tone, and early elasticity changes. It is known for strong free‑radical‑quenching capacity.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Firmness · Redness · Tone
Skin type
Dry · Sensitive · Combination
Best used
Morning
What it is
Ketocarotenoid from Haematococcus pluvialis microalgae; unique structure spanning the full lipid bilayer membrane allowing simultaneous radical quenching on both aqueous and lipid bilayer faces; singlet oxygen quenching capacity approximately 500× that of vitamin E in vitro; clinical evidence for topical application includes reduced wrinkle depth, improved skin elasticity, and decreased UV-induced pigment accumulation in controlled trials; inhibits UV-induced MMP-1 and MMP-2; natural orange pigment requires stabilised, encapsulated, or opaque formulation packaging.
Also found as
Related
Where to find it
DHC Astaxanthin Collagen All-in-One Gel
Mad Hippie Astaxanthin & Peptide Face Cream
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Common questions
It helps soften the look of fine lines, support elasticity, and reduce visible redness. It also helps defend skin from environmental oxidative stress.
Most people tolerate it well, and its antioxidant profile can feel calming on easily flushed skin.
It’s usually found in moisturisers or serums and can be used day or night. Layering with hydrating ingredients can enhance comfort.
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Personal guidance only · For clinical concerns, see a dermatologist.