Ubiquinol (CoQH2) is a reduced form of coenzyme Q10 (CoQ10) that acts as an active antioxidant that prevents the initiation and propagation of lipid peroxidation in biological membranes and human low-density lipoprotein (LDL). It plays an essential role in maintaining cellular defense against oxidative damage and also sustains the effects of vitamin E by regenerating the vitamin from the tocopheroxyl radical, but ubiquinol is not classified as a vitamin because it is synthesized by humans. There are varying concentrations of ubiquinol in foods, OTC products and dietary supplement products.
Formula
C59H92O4
Mol. Weight
865.40
CAS #
56275-39-9
Form
Liquid
State
Solid
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Locks In Moisture
Traditional Use
The reduced form of Coenzyme Q10, discovered in 1957. Ubiquinol emerged in skincare in the 1990s-2000s as an antioxidant based on research showing it supports cellular energy production and may reduce the appearance of wrinkles, with no traditional use history.