Vitamin B6 is essential for amino acid metabolism, neurotransmitter synthesis, glycogen breakdown, hemoglobin synthesis, conversion of tryptophan to niacin, and fatty acid metabolism. Multi-B #6 supplies vitamin B6 in two forms – pyridoxine HCl and the active, tissue-ready pyridoxal 5’-phosphate (P5P). Features: 100 mg of B6 in the form of pyridoxine HCl (85 mg) and active, tissue-ready pyridoxal 5- phosphate (P5P; 15 mg); the former formula contained 250 mg pyridoxine HCl and no P5P. 30 mg of B2 in the form of riboflavin (25 mg) and active, tissue-ready riboflavin 5’- phosphate (R5P; 5 mg); the former formula contained 25 mg of riboflavin and no R5P. Thiamine – 40 mg; the former formula contained 50 mg Pantothenic acid – 46 mg (the previous formula contained 45 mg) Biotin, niacinamide, 5-MTHF, methylcobalamin, and choline (listed as just the choline content, not choline citrate) remain the same Medicinal Ingredients: Per Capsule: Vitamin B6 (Pyridoxine Hydrochloride and Pyridoxal 5’-Phosphate) 100 mg Niacinamide 80 mg Pantothenic Acid (Calcium-D-Pantothenate) 45 mg Thiamine (Thiamine Hydrochloride) 40 mg Riboflavin (Riboflavin and Riboflavin 5’-Phosphate Sodium) 30 mg Choline (Choline Dihydrogen Citrate) 14.1 mg Folate (L-5-Methyltetrahydrofolic Acid, Glucosamine Salt) 200 mcg Vitamin B12 (Methylcobalamin) 100 mcg Biotin 80 mcgNon-Medicinal Ingredients:Hypromellose (derived from cellulose) capsule, Calcium Laurate, Silicon Dioxide, Powdered Cellulose.Recommended Dose (Adults):Take 1 capsule daily or as recommended by a health-care practitioner.