B-12 10,000 mcg Energy Boost Looking to jump-start your day with a burst of natural energy?  NOW® B-12 contains a powerful blend of Vitamin B-12, along with ten of the most effective nutrients for energy utilization!  With a complete B Vitamin profile, added Vitamin C, and an energizing 10,000 mcg blast of Vitamin B-12, this advanced energy formula will keep you at the top of your game! We've carefully formulated the nutrient profile in NOW® B-12 10,000 mcg Energy Boost to work synergistically, in order to keep you sharp, focused, and naturally fired-up for hours!* To get the most out of your training and active lifestyle, be sure to try NOW's other high octane energy shots, including L-Carnitine 2,000 and ChocoEnergy™! These potent liquid shots are perfect for working out, important meetings, that big test, or whenever life requires you to be at your best!

This NOW product has been designed to provide a high potency, balanced blend of the two prominent species of resident intestinal bacteria. Regular intake of beneficial probiotics can aid in maintaining healthy intestinal flora.*

Astragalus Root (Huang qi) has been used as a popular herbal tonic in China for many centuries.  Some of the known active components include flavonoids, free amino acids, trace minerals and polyphenols.

5-HTP, the intermediate metabolite between the amino acid L-tryptophan and serotonin, is extracted from the bean of an African plant (Griffonia simplicifolia).