The Claim
Topical and oral-topical astaxanthin applications may provide slight protective effects against skin ageing, based on open-label, prospective studies; however, the evidence is weak due to lack of control groups and very small sample sizes (n=3-30).
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
A natural red pigment called astaxanthin, found in seafood, might help keep skin looking younger when applied to the skin or taken by mouth, but scientists haven't done good enough studies yet to know for sure.
See the scientific wording
Topical and oral-topical astaxanthin applications may provide slight protective effects on skin ageing based on open-label, prospective studies, but the evidence is weak due to lack of control groups and very small sample sizes (n=3-30)
What the research says
1 studyStudy: Systematic Review and Meta-Analysis on the Effects of Astaxanthin on Human Skin Ageing
The study looked at both oral and topical/oral-topical astaxanthin for skin aging. It found that oral astaxanthin helped with skin moisture and elasticity, and the small open-label studies on topical applications showed slight protective effects - exactly what the claim says. The claim accurately reflects the study's findings about weak evidence from small open-label studies.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.