Composition (as listed by the manufacturer):
- Acetic acid (96%) — 3%
- Pyruvic acid — 0.05%
Other ingredients: ethyl lactate, dibutoxymethane, polysorbate 80, cetyl acetate, stearyl acetate, oleyl acetate, acetylated lanolin alcohol, C10-30 cholesterol/lanosterol esters, 2,5-bis(5-tert-butyl-benzoxazol-2-yl)thiophene, peppermint oil, decylene glycol, dimethyl isosorbide, ammonium methacrylate copolymer, biotin
Source: Excilor Nail Fungus Easy Pen product page, excilor.com (en-GB and en-AU)

Please check the manufacturer's label before use, as ingredient lists and formulations can be changed by the manufacturer at any time.

Clean and dry the nail and remove any nail polish before applying. Twist the pen to feed product to the tip, then coat the entire nail surface generously, applying to the nail only and avoiding the surrounding skin. Allow one to two minutes to dry before covering the nail with socks, shoes or gloves. Apply once a day. No filing of the nail is needed. Close the pen tightly after each use. Continue treatment for at least three months, or until healthy nail growth is visible.

For external use only. Avoid contact with the eyes, mucous membranes and the skin around the nail. Do not use if you are allergic to any of the ingredients, and stop use if irritation occurs. People with diabetes who have foot problems should consult their doctor before use. No clinical data are available for children or for pregnant or breastfeeding women — consult a healthcare professional first. Keep out of reach of children.

- Excilor Easy Pen treats fungal toenails by lowering the nail's pH to create a hostile environment for fungus, helping stop further growth while the nail recovers.
- Treats and prevents fungal spread by altering nail pH while reducing yellowing for healthier-looking nails.
- Once-daily application — half the routine of the twice-daily Excilor Solution and Pen.
- Twist-open precision applicator lays down an even coat over the whole nail with no filing required.
- Dries in one to two minutes so footwear can go straight back on.