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"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, hardernails – 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.
Nail Hardener. 90% confirm harder nails. Self-assessment of 50 women after 2 weeks. Application 2x per week.