Cyanocobalamin

* A common form of vitamin B12. Sometimes referred to as cobalamin.

Functions:

Vitamin B12 plays a crucial role in the body's healthy biological functioning. It's responsible for the proper functioning of the brain, the formation of blood and the metabolism, synthesis and regulation of DNA and fatty acid cells.

Cosmetically speaking, cyanocobalamin's functions are far less obvious and clear. While it has been shown to effectively treat psoriasis (Source: Dermatology, 2001, volume 203, number 2, pages 141–147), there is very little research to support its benefits for the skin following topical application. With that being said, many anti-aging creams contain this ingredient, believing that it may strengthen the skin's capillaries and reduce inflammations. You may find this ingredient in personal care products such as anti-aging treatment, facial moisturizer/lotion, shampoo/conditioner, hair loss treatment, mouthwash, eye cream, styling gel and cleanser.

Safety Measures/Side Effects:

While the FDA includes vitamin B12 as a Generally Recognized As Safe (GRAS) food additive, this safety of this ingredient's cosmetic use has yet to be assessed by the CIR Expert Panel. It's worth mentioning that several animal studies have shown aerosolized forms of this ingredient to have adverse respiratory and and reproductive effects.