What is the recommended dosage for Astaxanthin?

General: 4-12 mg/day; Cardiovascular Support: 8-12 mg/day

What are the side effects of Astaxanthin?

Potential side effects include: Generally well-tolerated, Orange skin discoloration at very high doses (harmless), Mild gastrointestinal discomfort.

What is astaxanthin and how may it support cardiovascular health?

Astaxanthin is a carotenoid pigment found in salmon, shrimp, and microalgae with potent antioxidant properties. Clinical studies suggest it may improve lipid profiles, reduce oxidative stress markers, and improve blood flow. Its antioxidant capacity is reported to be significantly greater than vitamin E.

What dosage of astaxanthin has been studied for cardiovascular outcomes?

Clinical trials have used 4–12 mg of astaxanthin per day. Lipid profile improvements have been observed at 6–12 mg daily for 8–12 weeks. The most studied form is derived from Haematococcus pluvialis microalgae. Astaxanthin is fat-soluble and should be taken with meals for optimal absorption.

What are the potential side effects of astaxanthin?

Astaxanthin is generally well tolerated at studied doses. Mild side effects include changes in skin pigmentation (slight reddish hue at high doses), digestive discomfort, and altered bowel habits. It may lower blood pressure and blood sugar, so caution is advised when combined with related medications. Long-term safety data is limited.

Astaxanthin

antioxidant

Also known as: Haematococcus pluvialis Extract, Natural Astaxanthin, AstaReal

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About

Astaxanthin is a xanthophyll carotenoid with antioxidant potency 6,000x greater than vitamin C, uniquely spanning the entire cell membrane bilayer. A 2020 meta-analysis of 14 RCTs found it significantly reduced plasma MDA (lipid peroxidation marker) and increased total antioxidant capacity. Studies in overweight subjects showed significant LDL and oxidative stress marker reductions.

How It Works

A xanthophyll carotenoid with antioxidant potency 6,000x greater than vitamin C; spans the entire cell membrane bilayer providing protection against lipid peroxidation; reduces ox-LDL formation; improves blood rheology by increasing membrane fluidity of erythrocytes; modulates inflammatory pathways via NF-kB and JAK/STAT inhibition.

Evidence For Conditions

Condition	Grade	Studies	Participants
High Cholesterol (Hyperlipidemia)	C	5	300	View →
Endothelial Dysfunction	D	2	100	View →

Side Effects

Generally well-tolerated
Orange skin discoloration at very high doses (harmless)
Mild gastrointestinal discomfort

Drug & Supplement Interactions

Blood pressure medications (may have mild additive hypotensive effect)
Hormone-sensitive conditions (theoretical, as carotenoid)

Always inform your healthcare provider about all supplements you take.

Related Ingredients

Grape Seed Extract Lycopene Quercetin Resveratrol

Quick Facts

Dosage: General: 4-12 mg/day; Cardiovascular_Support: 8-12 mg/day
Forms: softgel capsule
Natural Sources: Microalgae (Haematococcus pluvialis), Wild salmon, Shrimp, Krill, Lobster, Trout
Upper Limit: Not formally established; up to 40 mg/day used in short-term studies
Best Time: With meals containing fat (carotenoid — fat-soluble)

Evidence Summary

High Cholesterol (Hyperlipidemia) C

Endothelial Dysfunction D

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.