THE EXTREME NAIL HARDENER can be used as a base coat or as a clear nail polish and has a high-gloss finish. The formula ensures noticeably stronger, harder* nails – the polish can be applied twice a week as a cure for soft fingernails that are prone to chipping. *In an external study, 90% of testers confirmed that their nails felt harder after two weeks of use. Self-assessment by 50 women/testers. For hardened, stronger nails. Transparent nail polish with a high-gloss finish. Suitable for use as a base coat.
