2.5ml This super effective treatment from CND that repairs damaged nails with the power of Keratin protein and moisturizing jojoba oil. Now available in handy nail pen application. When used daily, peeling and other damage are dramatically reduced. Clinically-Proven Results: Week 1: 80% noticed improvements / 80% saw less white spots Week 4: 80% less peeling / 73% less splitting How to use: Store in a upright position On first use twist the pen a number of times to prime the product Apply on the surface and under the free edge of the nail daily at bedtime so the product has all night to work its magic. Massage in to promote healthy growth