The first hardener without formaldehyde or toluene, the first complete strengthener for resistant nails. With a base of horsetail, which acts as an elasticiser, the nail will be more supple which will eliminate cracks and brittle nails. Most nail hardeners on the market contain formaldehyde or formaldehyde resins to harden the nail, which over time leads to dry and brittle nails. This is a well known fact to all professionals, formaldehyde will harden the nail, but will also have the disadvantage of weakening it.
