Mullin said the ingredients at the doses recommended are harmless. But "there is no proof whatsoever" that catalase ingested orally can survive the gastrointestinal process and affect the hair follicle.

Is catalase good for humans?

Therapeutic Role of Catalase

Catalase is one of the most important antioxidant enzymes. As it decomposes hydrogen peroxide to innocuous products such as water and oxygen, catalase is used against numerous oxidative stress-related diseases as a therapeutic agent.

What is catalase supplement used for?

Claim: Catalase pills will get rid of gray hair

Hair cells produce hydrogen peroxide (used to lighten hair color) and catalase, which breaks down hydrogen peroxide into water and oxygen, at least for awhile.