Description Intensive Therapy 2 helps heal weak, thin, soft, or peeling nails. Nail Tek Intensive Therapy 2 is a specialty protein formula that seals the layers of the nail together. This reinforces and thickens nails while providing them with strength and flexibility. It is easy to apply once daily and dries quickly. For weak, brittle nails Clinically proven nail strengthener Made without DBP or Toluene