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1. American Health
This specialty-supplement manufacturer’s vitamin C formula is the result of years of research on enhancing vitamin C absorption, so the immune-boosting, water-soluble vitamin can stay in white blood cells for up to 24 hours.
Learn more: American Health
Environmental stewardship is a big focus for this company, which uses wild-harvested plant species and resupplies wild and organically farmed plants whenever possible. It also focuses on fair-trade practices and responsible packaging.
Learn more: Boiron
3. Country Life
With one of the first facilities in the industry to be registered by NSF International for Good Manufacturing Practices, this company maintains strict quality control for its gluten-free supplements.
Learn more: Country Life
This brand donates to causes that benefit both the community and the environment, such as Charity: Water, a nonprofit that brings clean, safe drinking water to rural communities worldwide.
Learn more: Emergen-C
5. Gaia Herbs
Looking for transparency? Through its “Meet your Herbs” platform, Gaia shares the results of its quality tests online. Type in the herb ID (found on the product packaging) to learn about individual ingredients in your supplement.
Learn more: Gaia Herbs
With a commitment to making supplements from whole-food ingredients sourced from family-owned farms, all of MegaFood’s supplements are certified vegetarian and free from gluten, dairy, soy, GMOs, pesticides, and herbicides.
Learn more: MegaFood
7. New Chapter
Quality ingredients are a top priority for this company: Its fish oil comes from sustainably sourced, wild-caught Alaskan salmon, and its reishi mushroom supplements have been DNA tested, ensuring you’re getting a beneficial strain.
Learn more: New Chapter
This family-owned company does more than 16,000 quality tests on materials and finished products each month to ensure all supplements are safe from contamination and ingredient substitution.
Learn more: NOW
9. Rainbow Light
Bottles made from 100-percent recycled materials are FDA-approved and BPA-free, helping the company keep approximately 10 million plastic bottles from polluting waste streams and natural habitats each year.
Learn more: Rainbow Light
To make its supplements accessible to people with religious dietary restrictions, Solgar works with certification agencies to ensure some of its products have kosher and Halal certifications.
Learn more: Solgar