Is it OK to take 1,000 mcg of B12 a day? Vitamin B12 is generally considered safe, even when taken in large doses. However, it’s best to check with a healthcare professional before taking high ...

B12 supplements can come in a variety of forms — spray, liquid, capsule — which can make it difficult to know what to buy.

300 Quick Dissolve Fast Acting Vitamin B-12 2500 mcg, Natural Cherry Flavor tablets Sublingual B-12 is placed under the tongue, where it quickly dissolves B-12 is excellent for energy metabolism ...

We have been using Doctor’s Best Fully Active B12 1500 mcg for several months now, and have noticed a significant improvement in our energy levels and overall well-being. The capsules are easy ...

We’ve been using Horbäach Vitamin B12 Sublingual 1000 mcg for a few weeks now ... micrograms or a weekly dose of 2,500-5,000 micrograms. What is the best form of B12 for optimal absorption?