- What does vitamin E do? Vitamin E (alpha tocopherol) is an antioxidant that helps to maintain the integrity of cells. Deficiency is rare in the U.S., but does occur more commonly in other countries, such as China.
- Does it help to take vitamin E? It may be helpful for Alzheimer's disease, arthritis, certain types of nerve pain and other conditions. Correcting a vitamin E deficiency (which is rare) may beneficial for maintaining eye health (see What It Does).
- What's the best form of vitamin E? The vitamin E in supplements may be natural (labeled as "d-alpha tocopherol") or synthetic ("dl-alpha tocopherol"). The natural form contains a mix of tocopherols which may be beneficial, although, as ConsumerLab has found, not all "natural" vitamin E supplements contain significant amounts of these additional tocopherols (see "Vitamin E with Other Tocopherols").
- What did CL's tests of vitamin E find? Among 11 vitamin E products selected for testing by ConsumerLab.com, 3 contained too little or too much vitamin E — in fact, one contained virtually none of the vitamin E it claimed. The cost to obtain 268 mg of active vitamin E (e.g., 400 IU of natural vitamin E) from the products ranged from 4 cents to almost $200 (see What CL Found).
- Which is the best vitamin E supplement? Among the products Approved for quality in ConsumerLab.com's tests (including 6 tested through CL's voluntary Quality Certification Program), our Top Picks not only met their claims but provided high quality vitamin E, sometimes with mixed tocopherols, at very reasonable prices.
- Vitamin E safety and side effects: Vitamin E should not be taken with blood thinners and certain other medications as it can increase the risk of bleeding. Some studies have shown an association between vitamin E supplementation and an increased risk of death, and one study found an increased risk of prostate cancer in men taking high dose vitamin E (see Concerns and Cautions).
Vitamin E Supplements Review
Find the Best Vitamin E Supplement. Tests and Reviews of Popular Vitamin E Supplements & CL's Top Picks.
Alphabetical list of vitamin E supplements compared in this review
Eden's Semilla 35,000 IU Vitamin E Oil
GNC Vitamin E 1,000 IU
GNC Vitamin E 400 IU
Healthy Origins Natural Sunflower E 400 IU
Jason Vitamin E 25,000 IU
Kirkland Signature E 180 mg
Life Extension Gamma E Mixed Tocopherols
Metagenics E Complex-1:1
Nature's Bounty E 400 IU
NOW Dry E-400
ProCaps Laboratories Ultimate Gamma Vitamin E
Puritan's Pride Natural E - 1,000 IU
Solgar Liquid Vitamin E
Solgar Vitamin Dry E With Yeast Free Selenium
Source Naturals Vegan True Vitamin E
Swanson Vitamin E
- Which vitamin E supplements, oils and creams passed or failed ConsumerLab.com's testing and review
- CL's Top Picks among vitamin E supplements and topical products that provide high quality vitamin E at a good value
- Who is most likely to need a vitamin E supplement
- Which foods are rich in vitamin E
- The causes and symptoms of vitamin E deficiency
- The dosage of vitamin E generally used in treating and preventing vitamin E deficiency and other conditions such as Alzheimer's disease
- Potential side-effects of vitamin E supplements and drug interactions
- And more!
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