Perricone MD Essential Fx Acyl Glutathione Deep Crease Serum SkinmedixSkinmedix Perricone MD Essential Fx Acyl Glutathione Deep Crease Serum (Exp. Date 28 Feb 2026) 30ml 1oz Cosmetics Now US Essential FX Acyl Glutathione Perricone MD Essential Fx Starter Collection Perricone MD For your skin's smoothing needs Essential Fx Acyl Glutathione Deep Crease Serum is highly potent with a silky, luxurious texture that absorbs quickly to smooth the look of even the most stubborn, deep set