Apply 2 coats of Renunail Nail Strengthener onto clean nails avoiding the cuticle area and then one coat daily for the next 5 days. On the 7th day remove with nail polish remover. Repeat the process 3 times. (Each program lasts for 25 days). Allow your nails to rest for 1-2 weeks between programs. Massage Renunail Nourishing Oil into the cuticles after Nail Strengthener has dried each time you apply a new coat. Nourishing Oil is also recommended to be used during the 1-2 week rest period.