The Claim

Oral astaxanthin supplementation at doses of 2-12 mg per day for 4-16 weeks significantly improves skin moisture content in middle-aged adults with age-related skin signs, based on pooled analysis of 5 randomized controlled trials showing a moderate effect size of 0.53 (95% CI: 0.05-1.01, p=0.03).

Source: Systematic Review and Meta-Analysis on the Effects of Astaxanthin on Human Skin Ageing

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
39score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking astaxanthin pills (about 2-12 mg daily for 1-4 months) can help middle-aged people's skin stay more moisturized, according to research combining 5 different experiments.

See the scientific wording

Oral astaxanthin supplementation (2-12 mg/day for 4-16 weeks) significantly improves skin moisture content in middle-aged adults with age-related skin signs, with a moderate effect size of 0.53 (95% CI: 0.05-1.01, p=0.03), based on pooled analysis of 5 randomized controlled trials

What the research says

1 study
  1. Study: Systematic Review and Meta-Analysis on the Effects of Astaxanthin on Human Skin Ageing

    This scientific review of multiple clinical trials confirms that taking astaxanthin pills (2-12mg daily for 4-16 weeks) really does help improve skin moisture in middle-aged people, with the exact same statistics the claim mentions.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.