HYDRA NEEDLE is great with a SKIN BOOSTER * High Quality Needles – 20 pins derma stamp with High Quality titanium needles. It does not give any allergic reaction, reusable, tested by 10,000 times of tapping. Super Fine Needles – Needle diameter 0.13mm , which is thinner than human hair. Delivery of Nutrients to the skin by light tapping on the skin – delivery skin boosters, skin serums, and single ingredients such as Vitamin C or DMAE. Treatment for all skin types and skin problems including aging, acne, scaring, pigmentation, dark circles under eyes and hair growth. Derma Stamp Micro-needles penetrate the skin, create hundreds of micro-channels, stimulate the production of collagen and elastin, and provide with greater nutritional absorption. Painless, No scratch on skin and No allergic reaction. This is included inside our Micro Infusion system kit on the webstore.