HOW IT WORKS: Day 1: apply one layer of the nail hardener. Day 2: repeat and apply a second layer of Nail Hardener. Day 3: remove the layers with the Nail Polish Remover and apply a new layer of the nail hardener. Day 4: apply a second layer of Nail Hardener, etc. Repeat these steps for 30 days. RESULTS WIHTIN 30 DAYS: For better results, combine this Sensitive Nail Hardener with Extra Strong Hardener. You will see a change in your nails within 30 days. SENSITIVE NAIL TREATMENT: This strengthener is made specifically for sensitive and brittle nails. SUCCESSFUL FORMULA: Thanks to its formula with Keratin, it is the sensitive version of the original. This provides better nail condition and a healthier appearance. NAIL STRENGTHENER: Hardening nail polish that strengthens and hardens sensitive nails. Results are visible within 30 days. 2 PACK WITH DISCOUNT: 2-Pack favourably priced: at least a 10% savings on the single unit price.