Isdin betalfatrus nail fragility… Isdin betalfatrus nail fragility is a care that restructures and remineralizes the nails affected by malformations, fragility and local pain, which usually occur in many nail inflammatory processes, such as nail psoriasis. Significantly reduces fragility and nail cracks due to its content in Equisetum arvense (horsetail), source of organic-mineral silicon. Restructures the nail thanks to Methylsulfonylmethane (MSM), a natural source of organic sulfur, an important component of nail keratin and proteins. Facilitates concentration and penetration of active ingredients due to their content in Hydroxypropyl chitosan (HPCH) and the application of Trans Ungual Delivery technology. Favors the growth and healthy appearance of the nail. Water soluble, quick absorption and easy to use. Invisible and odorless.