Ingredient guide
Astaxanthin
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.
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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.
When to use it
Mornings suit it best.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- Astaxanthin
- Moisturise
- SPF
Also found as
Related
Where to find it
Options across the range, not a ranking. Run one through Lens and MIRU will tell you if it fits you.
DHC Astaxanthin Collagen All-in-One Gel
Mad Hippie Astaxanthin & Peptide Face Cream
Fit comes first: the Lens checks each product against your skin before any retailer link. We may earn a commission, at no cost to you. Picks are editorial, never paid.
Common questions
What does astaxanthin do for skin?
It helps soften the look of fine lines, support elasticity, and reduce visible redness. It also helps defend skin from environmental oxidative stress.
Is astaxanthin suitable for sensitive skin?
Most people tolerate it well, and its antioxidant profile can feel calming on easily flushed skin.
How do you use astaxanthin?
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, not medical advice.