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Undecylenic Acid

Dosage form
LIQUID
Labeler
Target Corporation
Label updated
2017-12-01
Retrieved
2026-09-07
Active ingredients
Undecylenic Acid
View original label and images on DailyMed ↗
Active ingredient

Undecylenic acid 25%w/w

Purpose

Antifungal

Uses

For the cure of most tinea pedis (athlete's foot) and tinea corporis (ringworm)
For relief of:

  • itching
  • burning
  • redness
  • irritation
  • scaling
  • discomfort which may accompany these conditions
  • soreness
Warnings

For external use only

If pregnant or breastfeeding

consult a healthcare professional before use.

Do not use

on children 2 years of age unless directed by a doctor. 

When using this product

avoid contact with eyes

Use only as directed

by a doctor on persons with highly sensitive skin.

Stop use and consult a doctor if

  • there is no improvement within 4 weeks
  • irritation occurs

Keep out of children.

If accidental ingestion occurs, get medical help or contact a Poison Control Center right away.

Directions

Read all warning and directions. Use only as directed.

  • clean the affected area and dry thoroughly
  • twist pen base with 3 clicks to saturate brush
  • apply a thin layer of the product over the affected area twice daily (morning and night) or as directed by the doctor
  • the brush applicator allows for easy application under nails and surrounding cuticle area
  • supervise children in the use of this product
  • for athlete's foot: pay special attention to spaces between the toes
  • wear well- fitting, ventilated shoes, and change shoes and socks at least once daily
  • for athlete's foot and ringworm, use daily for 4 weeks. If condition persists longer, consult a doctor.
  • this product is not effective on the scalp or nails
Other information
  • store at room temperature 150 - 300C (590 - 860F)
  • protect from freezing. if freezing occurs, warm to room temperature.
  • keep tightly closed when not in use
Inactive ingredient

isopropyl palmitate

Questions?

Call 1-866-964-0939

Principal Display Panel

maximum strength 

antifungal nail pen

25% undecylenic Acid

eleminates fungus on fingers, toes and around nails

prefilled applicator pen brush

dries quickly

0.10 Fl. OZ (3 mL)

[Image in the official label — see DailyMed source]

[Image in the official label — see DailyMed source]

[Image in the official label — see DailyMed source]

[Image in the official label — see DailyMed source]

DailyMed Set ID: e9f63585-0f48-4ec0-9861-e9c5782cec60 · Version 3
NDC: 11673-634