Alpha Lipoic Sustain^® is in a special Sustain™ bilayer Quick Release/Sustained Release format to maximize and sustain blood levels and to minimize gastric irritation and blood sugar fluctuations.* Alpha Lipoic Acid is a unique lipid and water soluble antioxidant that is a co-factor in glucose metabolism and energy production.* ALA also promotes the synthesis of glutathione, a critical component of the body’s endogenous antioxidant network.* Biotin is added for optimum ALA activity.*

The advanced bilayer Sustain™ tablets combine 1/3 Quick Release and 2/3 Sustained Release formats to both immediately raise and to maintain blood levels over a longer period of time.