What is Vitamin B6? BULK POWDERS™ Vitamin B6 Powder is a water soluble vitamin, which comes from the B-complex family. Vitamin B6 is vital for normal healthy metabolism of nutrients such as carbohydrates. It also helps the formation of haemoglobin in the blood, which carries oxygen around our body. BULK POWDERS™ Vitamin B6 is the purest source of B6 available, containing no fillers or additives. Where is Vitamin B6 found? Vitamin B6 can be found in foods such as chickpeas,