Undecylenic Acid

Liquid · Topical

Over the counter

Active ingredient

​Undecylenic Acid 25%

Purpose

Antifungal

Uses

USES: Cures most athlete’s foot (tinea pedis) and ringworm (tinea corporis). Relieves itching, scaling, cracking, burning, and redness.

Warnings

For external use only. Do not use on children under 2 years of age unless directed by a doctor. Avoid contact with eyes. If contact occurs, rinse thoroughly with water

Stop use and ask a doctor

Irritation occurs or if there is no improvement within 4 weeks.

Keep out of reach of children

If swallowed, get medical help or contact a Poison Control Center right away.

Directions

DIRECTIONS: Wash affected area and dry thoroughly. Apply a thin layer of the product over the affected area (around the nails and underneath nail tips) twice daily or as directed by a doctor. 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.

Inactive ingredients

Isopropyl Alcohol, Water (Aqua), Tocopheryl Acetate, DMDM Hydantoin, Melaleuca Alternifolia Leaf Oil.

Label text from the FDA structured product label by Chemco Corporation (revised Dec 5, 2023). Long sections are shortened; the complete label is on DailyMed.

Active ingredients

Undecylenic Acid NDC products (1)

NDCStrength & formLabelerType
49283-025Undecylenic Acid 25 g/100mL
Liquid
Chemco CorporationOTC MONOGRAPH DRUG

Frequently asked questions

What is Undecylenic Acid used for?

USES: Cures most athlete’s foot (tinea pedis) and ringworm (tinea corporis). Relieves itching, scaling, cracking, burning, and redness.

Who makes Undecylenic Acid?

Undecylenic Acid is listed by 1 labeler in the FDA NDC directory, including Chemco Corporation.