Don't take astaxanthin if you're allergic or sensitive to:
Women who are pregnant or might become pregnant should avoid astaxanthin.
- Similar carotenoids such as canthaxanthin
- A source of astaxanthin, such as the algae that produces it
- Drugs that inhibit 5-alpha-reductase like finasteride (Propecia, Proscar) or dutasteride (Avodart, Jalyn)