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Natural Factors

B12, Methylcobalamin, 5,000 mcg, 60 Chewable Tablets

4.8 · 3934 reviews
1,632 ₽

Dietary Supplement Quick Dissolve The Most Metabolically Active Form Purity & Potency Guaranteed Suitable For Vegetarians For people with B12 deficiencies it is popular to have injectable vitamin B12; however, research supports that oral administration of an appropriate dosage has been shown to produce as good of results as injectable preparations in treating vitamin B12 deficiency. Methylcobalamin (vitamin B12) is active immediately upon absorption, while other forms (e.g., cyanocobalamin) must be converted to methylcobalamin in a two-step process. Methylcobalamin demonstrates exceptional activity in areas where other forms are simply not active. B12 supplementation is recommended for vegetarians and those with B12 deficiency. It helps form red blood cells, prevents vitamin B12 deficiency and helps maintain good health. In people with low levels of B12, supplementation is very effective in improving energy levels and restoring mental function. Isura™: Non-GMO: Documentation ✔ Mass Spec: Lab Tested ✔

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Dietary Supplement Quick Dissolve The Most Metabolically Active Form Purity & Potency Guaranteed Suitable For Vegetarians For people with B12 deficiencies it is popular to have injectable vitamin B12; however, research supports that oral administration of an appropriate dosage has been shown to produce as good of results as injectable preparations in treating vitamin B12 deficiency. Methylcobalamin (vitamin B12) is active immediately upon absorption, while other forms (e.g., cyanocobalamin) must be converted to methylcobalamin in a two-step process. Methylcobalamin demonstrates exceptional activity in areas where other forms are simply not active. B12 supplementation is recommended for vegetarians and those with B12 deficiency. It helps form red blood cells, prevents vitamin B12 deficiency and helps maintain good health. In people with low levels of B12, supplementation is very effective in improving energy levels and restoring mental function. Isura™: Non-GMO: Documentation ✔ Mass Spec: Lab Tested ✔

Customer reviews

5.0
verified purchase

This is a very high quality supplement and great for anemia, brain fog and especially for people who have MTHFR mutation. I take iron bisglycinate with vitamin C, methylfolate and this most active form of vitamin B12. It's very easy to use as it dissolves in the mouth in seconds. The taste is good. I take it every other day because of its high potency. I don't have any side effects.

6/13/2022
5.0
verified purchase

Good quality. The potency of the ingredient, the taste, tablet size are awesome. Since I started taking, my metabolism became faster my nervous system and energy got better. Nutrients like folic acid and niacin flush improved my health. Package arrived sooner than expected. I am so excited to see the benefits. I will surely order again if effective. I am a new member and I am so happy to be part. Thank you, from the Philippines.

6/11/2022
5.0
verified purchase

The most noticeable benefit I’ve experienced since starting Methylcobalamin is a dramatic improvement in my energy levels. Before taking it, I often felt fatigued and sluggish, especially in the afternoons. After about a week of consistent use, I noticed a steady increase in my energy, and I now feel much more alert and productive throughout the day. It’s a clean, natural energy boost without any jitters or crashes, which I really appreciate.

10/6/2024
5.0
verified purchase

Methylcobalamin has been an excellent way to boost my energy and support overall nerve health. Since I started taking it, I’ve felt more alert and less fatigued throughout the day. The fact that it’s a more bioavailable form of B12 makes it especially effective, and I’ve had no issues with absorption. The tablets are easy to take, and I’ve noticed an improvement in my mood and energy levels. It’s been a great supplement for keeping my B12 levels in check naturally.

9/25/2024
5.0
verified purchase
"Remarkable Health Improvements with Vitamin B12: Enhanced Energy and Vitality"

"I've been taking Vitamin B12 supplements for several months, and the results have been incredible. My energy levels have drastically improved, allowing me to stay active and productive throughout the day. I've noticed a significant boost in my mood and overall mental clarity, which has positively impacted my work and personal life. The supplement is easy to take, with no unpleasant aftertaste or side effects. Additionally, my immune system feels stronger, and I haven't experienced as many colds or illnesses since starting this supplement. I appreciate that the B12 is of high quality and comes from a reputable brand, ensuring its effectiveness. I've also seen improvements in my hair and nail strength. Overall, Vitamin B12 has been a game-changer for my health and well-being. I highly recommend it to anyone looking to enhance their energy, focus, and overall vitality. This supplement has truly made a difference in my daily life, and I plan to continue using it."

7/23/2024
5.0
verified purchase
Good !

Dietary Supplements Dissolve quickly Special active form of metabolism Guaranteed purity and potency Suitable for vegetarians For people who are deficient in vitamin B12, vitamin B12 injections are popular; however, studies have shown that oral administration of an appropriate dose of vitamin B12 is as effective as injectable preparations in repairing vitamin B12 deficiency

11/13/2021
5.0
verified purchase
Great

Quality is great, size is good, benefits are good, no taste, ingredients are natural, I didn’t have any side effects I recommend it

12/30/2025
5.0
verified purchase
great

i take this for brain, sleep and nervous system, i love it, best brand

12/16/2025
5.0
verified purchase

Been taking methylcobalamin for a couple of months and honestly, I feel the difference! More energy, better focus, and my occasional hand tingling has eased up. Super easy to take and no side effects so far. If you’re looking for a B12 boost, this one’s a solid choice! 💪✨

12/1/2025
5.0
verified purchase
Top Quality

I love Natural Factors; they are one of my staple companies for supplements I use this super high chewable B12 dose due to MTHFR issues with methylation The chewable is also much better absorbed Many would not need this high of a dose, you may want to start at 1,000 mcg instead of 5,000, which iHerb also sells

11/28/2025