No...I choose a B vitamin with a general profile of 100-150 mg. of the majority of the B's. Only folate (B-9), biotin (B-7) and B-12 (cobalamin) are listed in mcg. so those could vary. I am taking Life Extension Complete B-Complex now but for many years I took GNC B complex because they had a formula that was based on 150 mg. of the majority of the B's. I take extra B-1, Biotin and B-3 so sometimes even the B's that are listed in mcg. may need to be boosted. It is extremely easy to be deficient in B vitamins...many, many things deplete our B vitamins and they are so critical to nerve health and so much else in the body. Vitamin C and B are water soluble (eliminated daily through urine) so they are needed in the right amounts every day.

No...I choose a B vitamin with a general profile of 100-150 mg. of the majority of the B's. Only folate (B-9), biotin (B-7) and B-12 (cobalamin) are listed in mcg. so those could vary. I am taking Life Extension Complete B-Complex now but for many years I took GNC B complex because they had a formula that was based on 150 mg. of the majority of the B's. I take extra B-1, Biotin and B-3 so sometimes even the B's that are listed in mcg. may need to be boosted. It is extremely easy to be deficient in B vitamins...many, many things delete our B vitamins and they are so critical to nerve health.

No...I choose a B vitamin with a general profile of 100-150 mg. of the majority of the B's. Only folate (B-9), biotin and B-12 are listed in mcg. so those could vary. I am taking Life Extension Complete B-Complex now but for many years I took GNC B complex because they had a formula that was based on 150 mg. of the majority of the B's. I take extra B-1, Biotin and B-3 so sometimes even the B's that are listed in mcg. may need to be boosted. It is extremely easy to be deficient in B vitamins...many, many things delete our B vitamins and they are so critical to nerve health.