10.07.08
Patent No. US. 7,416,720 B2
A nail hardener that decreases brittleness and increases strength has been patented by Morteza Hajirahimy of Tehran, Iran. The topical aqueous composition consists of 20% glycerin, 17% water, 3% propylene glycol and 60% ethanol.
A nail hardener that decreases brittleness and increases strength has been patented by Morteza Hajirahimy of Tehran, Iran. The topical aqueous composition consists of 20% glycerin, 17% water, 3% propylene glycol and 60% ethanol.