Nailhardener Sensitive is the perfect solution if you are looking for a gentle nail hardener. As compared with the two other hardeners, you can use this product as often as you like. The perfect way to secure strong nails that can grow in length all year round.How to:Day 1. Apply one layer of Nailhardener.Day 2. Apply a second layer of Nailhardener. Day 3. Remove the first two layers with Caring Nail Polish Remover and then apply a new layer of Nailhardener.Dag 4. Apply a second layer of Nailhardener.Remove the two layers and then repeat these four steps for a period of 30 days Use:How to:Day 1. Apply one layer of Nailhardener.Day 2. Apply a second layer of Nailhardener. Day 3. Remove the first two layers with Caring Nail Polish Remover and then apply a new layer of Nailhardener.Dag 4. Apply a second layer of Nailhardener.Remove the two layers and then repeat these four steps for a period of 30 days Herome Nail Hardener Sensitive 10 ml