What role does COMT play in skin aging?

COMT (catechol-O-methyltransferase) is an enzyme involved in breaking down catecholamines and estrogens. In skin, it may influence aging through estrogen metabolite regulation, oxidative stress, collagen maintenance, and pigmentation. Certain polymorphisms (e.g., rs4680, Val158Met) alter enzyme activity: the low-activity Met variant could theoretically increase oxidative damage and accelerate skin aging, while the high-activity Val variant might be protective. However, direct human evidence linking COMT variants to skin aging is very limited. Most support comes from mechanistic studies or indirect associations with estrogen-related conditions. Consumer DNA tests that report COMT variants cannot predict skin aging risk reliably. Lifestyle factors (UV protection, diet, smoking) and other genes play a much larger role. The evidence grade is mechanistic/unclear. Be cautious of marketing claims that overstate COMT's role in skin rejuvenation.