An extra portion of nail hardener for soft and thin nails
Send your nails to the spa: Use our hardener strong as a 4-week treatment.
Send your nails to the spa: Use our hardener strong as a 4-week treatment. Apply a single layer every day for 4 consecutive days, remove all layers with nail polish remover on day 5 and treat them to a nail oil application. On day 6 you start over and keep repeating the cycle. After a 4-week treatment, your nails will have brilliant shine and you will be surprised how strong they have become.