What is Astaxanthin?
Astaxanthin is a red carotenoid pigment found in algae, salmon and krill. Supplements are fat-soluble antioxidant carotenoids.
What it does for skin
Pooled effect on hydration (oral trials): standardised mean difference 0.53, 95% CI 0.05 to 1.01.
Pooled effect on elasticity: standardised mean difference 0.77, 95% CI 0.19 to 1.35.
The wrinkle result did not reach significance (standardised mean difference −0.26, 95% CI −0.58 to 0.06).
What the research shows
The meta-analysis pooled 8 randomized trials with 293 people in total (162 astaxanthin, 131 placebo). Individual trials had between 16 and 65 participants.
The authors state that the findings "should only be considered as preliminary", citing the small number of trials and small sample sizes.
Forms, amounts and limits
Oral trials in the meta-analysis used 2 to 12 mg a day, most at 4 to 12 mg, for 4 to 16 weeks.
Safety
The meta-analysis summary we read does not report adverse events. Ask a clinician before use if you are pregnant or breastfeeding.
Talk to a doctor or pharmacist before starting any supplement, especially if you are pregnant, breastfeeding, have a medical condition or take medicines.
Questions
Is astaxanthin a sunscreen?
No. It is not a substitute for sunscreen or protective clothing.
Sources
General information, not medical advice. Vanu Health does not sell this supplement. Read our terms.