It’s about you: If you are ready for more in your retinoid routine, MASTER SWITCH Progressive 5% HPR Retinoid Serum is designed to deliver next level, advanced results for smoother, brighter, healthier looking skin. It’s about the right things: 5% HPR Retinoid Complex - more than double HPR retinoid than our NEW BEGINNING serum to power up skin renewal and collagen production. 4D Hyaluronic Acid delivers multi-level hydration to keep skin plump, firm and bouncy Bakuchiol + Bisabolol, natural plant extracts to restore skin radiance and soothe the skin barrier Tranexamic Acid to brighten and protect while supporting a more even skin tone This all in one, multi benefit, advanced serum is designed for those who have already built tolerance to gentler retinoids (like NEW BEGINNING Gentle 2% Retinoid Serum) and are ready to take the next step in skin renewal. Dermatologically Tested