Spa Express Nail Hardener Strengthens brittle nails in 4 weeks. The nail hardener transforms problem nails into dream nails within a 4week treatment. The special formula helps soft nails gain more strength and become more resistant to external influences. Application: Apply one or two thin coats on a carefully cleaned, oilfree, and dry nail, ensuring the first coat is completely dry. The nail hardener can be used alone or as a base coat. An effective treatment should last 6 to 8 weeks, up to a maximum of 12 weeks. Afterward, apply 1 to 2 times weekly for maintenance. Always protect your cuticles with a fatty substance before application.
