Some By Mi Retinol Intense Reactivating Serum is a 30 ml anti-ageing facial serum housed in a dropper bottle for precise dosing. Its clinical-solution formula combines Retinol 0.1%, Retinal 1 PPM, and Bakuchiol 5,000 PPM to support skin renewal, help smooth and refine texture, and soften the appearance of fine lines and wrinkles. Lightweight and fast-absorbing, it is dermatologist tested and non-comedogenic tested, and works well as a targeted step in an evening skincare routine.