F.O.X Ultrabond Keratin non-acid is an updated acid-free primer formula that now includes keratin!

Keratin is a natural protein and one of the nail's core building blocks. Keratin-infused treatments help replenish what's missing and reduce brittleness.

This acid-free, keratin-infused primer doesn't wear down the nail plate and supports its natural properties.

Who it's for:

• Thin, weak or brittle nails
• Damaged nail plates

Result: reliable adhesion, with safety for the natural nail built in.