The Anti-Bite Nail Varnish Repairing Sensitive prevents from bitting on the nails from the first application. It's formula is enriched with 54% of bio-sourced ingredients, and it is suitable for adults and children aged from 4 years old. It was tested under dermatological and pediatric control, it is also a very unique formula that combines 2 actions. 1- the strong bitter taste stops the urge of nail bitting and thumb sucking from the first application. 2- the exclusive formula, enriched with bio-sources active ingredients helps repairing and strenghening damaged nails. Once applied onto the nails, the product becomes invisible.