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Polyethoxylated Retinamide (PERA) - has characteristics similar to retinoic acid and retinol, improving collagen synthesis and promoting wrinkle reduction. The penetration potential of PERA is said to be three times greater than that of retinol and six times greater than that of retinyl palmitate. PERA is a combination of retinoic acid with polyethylene glycol, and is designed for enhanced stability and skin permeability.
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