21st Century Vitamins and Supplements - For Adults, Women

Vitamin B-12 500 mcg

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$3.62 $5.49 In stock

Category: Vitamin B

Vitamin B-12 (Cyanocobalamin) can be found in food sources like fish, meat, poultry, eggs, and dairy products.

For over 30 years, 21st Century Vitamins has provided trusted vitamins and supplements by upholding the highest standards of quality in every product we offer. From sourcing the finest ingredients to rigorous testing and production processes, we ensure that every product meets our stringent quality benchmarks. We are here to support your wellness every step of the way.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Avery B. ★★★★★

These 500 mcg tablets are tiny and easy to swallow, which is a huge plus for me since I hate big pills. I notice a real difference in my energy levels by mid-afternoon now.

Sophia ★★★★★

I’ve been taking these B-12 tablets for about a month now, and they’re a solid 500 mcg dose that doesn’t upset my stomach. My energy levels feel more consistent throughout the afternoon, which was my main concern.

Ryan ★★★★★

My grandmother swears by getting B-12 from eggs and dairy, but I don't eat enough of either, so these 500 mcg tablets are my easy backup. They're cyanocobalamin, which is exactly what my doctor suggested, and I've noticed my afternoon energy slump isn't as brutal lately.

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