Folic acid is the synthetic form of folate that is often found in enriched foods. L-5-MTHF (full name: L-5-methyltetrahydrofolate) is a stabilized form of folate that is directly added to supplements. This form is also present in small amounts in some foods and is often chosen in high-quality formulas.

For healthy people with a normal diet, long-term intake of high doses of B6 (above 21 mg per day) is not recommended, as this may lead to nerve issues such as tingling or numbness. Always consult a doctor before using high doses of B6.

Coenzyme forms are vitamins that are provided in supplements in a form that is identical to how they are present in food or nutrient complexes. Examples include pyridoxal-5'-phosphate (P5'P) for B6 and riboflavin-5'-phosphate (R5'P) for B2. These forms are stable and are often used in higher quality B complexes.

The amount of B12 in this supplement is above the reference intake and is based on commonly used dosages in daily supplements. B12 is hardly present in plant-based foods, which is why vegans or vegetarians often choose to supplement it. This formula contains B12 in the form of methylcobalamin.

Inositol hexanicotinate is a complex of niacin (vitamin B3) bound to inositol. It is an alternative form of niacin regularly used in B complex formulas.