Reinforced nails: even with cracked and brittle nails, our nail care pen significantly supports the nail. The serum ensures optimal moisture supply and long-term regeneration. UNIQUE ACTION - The nail matrix technology in the nail care pen ensures that the nail is opened at the cellular level in the first step. In this way, the nourishing active ingredients can reach the nail fungus on the root of the nail where it forms and fully develop their effect. Easy to use: file the nail with a file and remove the porous and brittle parts - moisten the brush by twisting the top. Then apply the product to the affected area and surrounding area. Leave on until it dries completely. Tested recipe: all our products are developed in collaboration with doctors and pharmacists. They are therefore perfectly fit and safe.