Kiss Xtreme Growth, Nail Growth (51539). Fortified with Calcium and Ceramiane to Protect Soft, Weak Nails . Why Xtreme Growth, Nail Growth Activato • Gives nails the protection they need to grow stronger and longer • Calcium provides a strong foundation for soft, thin nails • Ceramiane helps to retain moisture and improve the surface of the nail keratin Kit Contains • Xtreme Growth, Nail Growth Activator with brush applicator