Skinbetter Science’s AlphaRet Overnight Cream combines two gold standard skin rejuvenating ingredients, AHA (alpha hydroxy acid) and a retinoid that provide effective and visible skin rejuvenation while you sleep. AlphaRet is the latest innovation in retinoid renewal, delivering remarkable results with little to none of the irritation often experienced with retinol and other retinoid products. All Skinbetter Science products are dermatologically tested, paraben-free, fragrance-free, dye-free, and cruelty-free.