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21st Century

Vitamin B-12, 500 mcg, 110 Tablets

4.7 · 13195 reviews
641 ₽

Energy Support Vitamin Supplement Gluten Free Non-GMO Guaranteed Quality - Laboratory Tested Trusted Quality For Over 30 Years Suitable For Vegans Vitamin B-12 (Cyanocobalamin) supports the body's nerves and blood cells.

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Energy Support Vitamin Supplement Gluten Free Non-GMO Guaranteed Quality - Laboratory Tested Trusted Quality For Over 30 Years Suitable For Vegans Vitamin B-12 (Cyanocobalamin) supports the body's nerves and blood cells.

Customer reviews

5.0
verified purchase
B12 vitamin

Let me tell you about vitamin B12 I started taking it about a month now got to tell you I really didn't feel tired at all felted good the pill is so tiny you can put it under your tongue and disappears in 2 seconds fruity favor I really like this vitamin when I went to the Dr he said that my blood and everything was Normal but before that I was always feeling tied I'm happy and feel so much better since I take the vitamin also my hair stared to look better too over all I feel and look good this brand century I feel is the best vitamin B12 out there irs going to be the only one I take now 😊 thank you sheila.

10/25/2023
5.0
verified purchase
Good value and reliable quality

I’m satisfied with this vitamin B12 supplement. The tablets are easy to take and the packaging keeps them fresh. It’s convenient for everyday use and the quality feels reliable for the price. The bottle lasts a good amount of time. I would recommend it and nervous system metabolism effect potency purchase again. Ingredient the size energy and taste and folic acid

2/25/2026
5.0
verified purchase
effective

very good supplement especially for iron deficiency .. I love to share this product tha quality is a hundred percent good and the ingredients are non allergens. I like the products for it's authenticy.

2/15/2026
5.0
verified purchase
Прекрасно!

Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!

2/3/2026
5.0
verified purchase
I love it

I’m extremely satisfied with this product from iHerb! The quality is absolutely amazing — you can really feel the difference compared to other brands. The packaging was neat, safe, and well-sealed, ensuring the product arrived in perfect condition. Shipping was super fast and reliable, even faster than I expected! Everything came fresh, authentic, and exactly as described on the website. I also appreciate how iHerb always delivers genuine products with great expiration dates and professional packaging. Highly recommend this item to anyone looking for top quality, great value, and trusted delivery service. I’ll definitely order again soon!

1/25/2026
4.0
verified purchase
review

great product. very useful . good quantity quality good ingredient size good dosage good benefit accepted taste composition deficiency supplement symptom frequency minerals. package folic acid energy niacin flush effect potency nervous system metabolism

1/19/2026
5.0
verified purchase
Great B-12 for daily energy support

I’ve been taking 21st Century Vitamin B-12 500 mcg and it’s been a nice addition to my routine. The tablets are easy to take, gentle on my stomach and is excellent value. I’ll definitely buy again.

12/15/2025
5.0
verified purchase
Great energy support

This is a solid, no-nonsense B-complex supplement enhanced with vitamin C. It’s especially good if you want energy support plus immune benefits in a single, affordable tablet. However, if you need specialized forms of B vitamins (like methylated B12) or have sensitivity to high-dose B vitamins, you might want to explore more tailored options.

11/21/2025
5.0
verified purchase
Nice

Nice quality good ingredients size dosage age hemp package composition benifit improvment diet supplements concern benefits tast and i love it very much, good app and products nice experience vitamin d mg immune acidity antioxidant stomach potency effect mineral hormone sleep muscle joint relaxation. Absorption bone deficiency sun kissed use scent sensitive texture seasonal moisture knee to

11/19/2025
5.0
verified purchase
Good effect

I’ve been taking this Vitamin B12 500 mcg, and the packaging is compact and well-sealed, making it easy to store and use daily. The size of the bottle is practical, providing enough tablets to last for a good period without taking up much space. The composition uses B12 in a form that absorbs easily, which is helpful for maintaining consistent levels. The quality is reliable—the tablets are small, easy to swallow, and gentle on the stomach. In terms of use, I take one tablet per day, and it fits smoothly into my morning routine. The benefits I’ve noticed include improved energy and better mental clarity throughout the day. Overall, the efficient packaging, convenient size, effective composition, dependable quality, simple use, and noticeable benefits make this a great daily supplement.

11/9/2025