Astaxanthin

Tier 3 — weak evidence · Antioxidant · Skin · Recovery

One of the most potent natural antioxidants, giving salmon and shrimp their pink color. Human trials show modest improvements in skin hydration and exercise recovery. However, NCCIH notes virtually all trials are manufacturer-funded and small, raising bias concerns. Generally safe and well tolerated. Take with a fatty meal for best absorption.

Dose: 4–12 mg/day from Haematococcus pluvialis algae, with a fatty meal