• Derma roller designed to stimulate receptors in the skin and improve the absorption of ingredients. • Includes a reservoir that allows for instant serum application. • Easy to use: apply numbing cream and products like hyaluronic acid, vitamin C, minoxidil, retinol, peptides, etc. • Provides a gentle and controllable treatment, without the pain of electric devices. • Recommended use 2-3 times a week for best results. • Disinfect the device before and after each use with alcohol.