What Is KeraFirm Pro?
KeraFirm Pro is a topical brush-on formula built around nine named ingredients, applied directly to the nail, edges and cuticle four times a day.
Only one ingredient, Undecylenic Acid USP at 5%, carries a stated concentration. The other eight are named but not quantified.
A brush-on formula, not a pill or soak
KeraFirm Pro is a topical formula for people dealing with discoloured, brittle or rough-looking toenails, particularly those who have tried other approaches without lasting results. Rather than a pill or extended soak, it uses a precision brush applicator to place the formula directly across the nail surface, edges and cuticle.
The logic behind the brush is coverage: fungal-related buildup can sit in hard-to-reach areas around and beneath the nail edge, and a generic dropper or spray may miss those spots. A brush gives more direct control over where the formula goes.
What is actually in it
Nine ingredients are named on the brand's pages. One, Undecylenic Acid USP, carries a stated concentration of 5%. The other eight — isopropyl palmitate, almond oil, flaxseed oil, tea tree oil, aloe vera, vitamin E, lemongrass oil and lavender oil — are named but not quantified.
See the full ingredient breakdown for what each one is included for.
The routine: four applications daily
KeraFirm Pro is applied four times a day — twice in the morning and twice in the afternoon — using the brush on the nail and a cotton swab around the cuticle. This is a more involved routine than a once-daily product, worth factoring into your expectations before you order.
Who it is aimed at
The brand positions KeraFirm Pro for adults dealing with visibly affected nails who want a targeted, non-oral approach. It is a cosmetic formula, not an FDA-approved drug, and is not intended to diagnose, treat, cure or prevent any infection.
Read next: how KeraFirm Pro works.
