Nail Expert - BLACK DIAMOND HARDENER by Golden Rose.
Strengthening conditioner. Intended for weak, thin and brittle nails. The composition contains black diamond particles and hardeners to prevent breaking and splitting the plate. In addition, the preparation prevents splashing of colored lacquer. The conditioner has a colorless formula that makes your nails look natural (creates a shiny coating). Effect visible after 4 weeks of use. *
* The result of use of the preparation for 4 weeks in efficacy tests.