Mega-a Skin Transforming Serum is powered by clinical-grade retinal, proven to be 11 times more effective than retinol. More powerful than retinol and gentle enough for daily use. This powerhouse serum blends skin-enhancing retinal with hyaluronic acid and squalane to increase hydration and elasticity while smoothing the look of fine or deep lines. Perfect for all skin types (even sensitive) whether you're experienced with retinoids or just getting started. This skin transforming retinal serum delivers "Yaaas girl!" results in just 7 days, and gets even better after 4 weeks of daily use.