Also known as: haematococcus pluvialis
Latest evidence update: 2026-02-19
Strongest in Consistency (87). Held back by Recency (40).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Thousands of participants across the literature.
Studies agree on direction of effect.
Evidence base skews older; field may have moved on.
Recommended: 4-12mg daily
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Enhances physical performance and fat burning, especially when combined with exercise training and at doses of 20 mg or higher
Improves egg quality and increases the number of high-quality embryos in women with PCOS
Improves sperm quality during freeze-thaw preservation by increasing viability and movement
Provides modest improvements to skin elasticity and moisture content
Shows no meaningful effect on body weight, blood pressure, blood sugar, or blood cholesterol levels in human studies