Hailed by many as their lifesaver nail care products weve brought together renunail nail strengthener with renunail nourishing oil in one handy setrenunail nail strengtheneron the first day of the treatment apply two coats of renunail nail strengthener to clean nails avoiding the cuticle area apply one further coat every day for the next five days on the seventh day remove with nail polish remover and repeat the programme for the next three weeksplease allow your nails to rest for two weeks