Zynthix
1 g/4mL · Solution
- Available without prescription
- Active substance
- Undecylenic Acid Solution
- Made by
- Shenzhen Siwei Yijiu Trading Co., Ltd.
- Source
- Official label
Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.
At a glance
Quoted from the official label · 2026-04-08
Antifungal
- For the treatment of most athlete’s foot, jock itch, and ringworm. Relieves itching, burning, cracking, and scaling.
On children under 2 years of age unless directed by a doctor. For diaper rash.
All warnings ↓- Sold without a prescription
- FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed
What it is for
- For the treatment of most athlete’s foot, jock itch, and ringworm. Relieves itching, burning, cracking, and scaling.
From the official label · 2026-04-08 · DailyMed
Do not take it if
On children under 2 years of age unless directed by a doctor. For diaper rash.
Quoted from the official label, section “OTC — Do Not Use”.
How to take it
These directions are for this exact strength and form. Another one is different.
- Clean the affected area and dry thoroughly.
- Twist off the cap, rotate the bottom to dispense solution to the brush.
- Apply a thin layer to the affected area twice daily (morning and night) or as directed by a doctor.
- 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.
- For jock itch, use daily for 2 weeks.
- Supervise children in the use of this product.
Quoted from the official label, section “Dosage & Administration”.
Stop and get help if
Irritation occurs or gets worse. There is no improvement within 4 weeks (for athlete's foot and ringworm) or 2 weeks (for jock itch).
Quoted from the official label, section “OTC — Stop Use”.
Other warnings
- For external use only.
- This product is not effective on the scalp.
- Flammable.
- Keep away from fire or flame.
- Do not use On children under 2 years of age unless directed by a doctor.
- For diaper rash.
- When using this product Avoid contact with eyes.
- May cause mild stinging or burning sensation on broken skin.
- Stop use and ask a doctor if Irritation occurs or gets worse.
- Avoid contact with eyes. May cause mild stinging or burning sensation on broken skin.
Quoted from the official label, section “Warnings”.
Pregnancy and breastfeeding
section If pregnant or breast-feeding, ask a health professional before use.
Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.
Keep away from children
If swallowed, get medical help or contact a Poison Control Center right away.
Quoted from the official label, section “OTC — Keep Out of Reach of Children”.
Other information
Store at room temperature 15°-30°C (59°-86°F). Protect from excessive heat and direct sunlight.
Quoted from the official label, section “OTC — Other Information”.
What kind of medicine it is
Antifungal
Quoted from the official label, section “OTC — Purpose”.
Other ingredients
Relevant if you react to a dye, a preservative, lactose or gluten.
Alcohol denat, Borneol, Glycerin, Isopropyl alcohol, Menthol, Water.
Quoted from the official label, section “Inactive Ingredients”.
Questions about this product
213-396-1046 / MalachiPerez291@gmail.com
Quoted from the official label, section “OTC — Questions”.
Ingredients people check for
Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.
- Alcohol (ethanol)
Alcohol denat
Matters for children, in pregnancy, in recovery and with some medicines.
Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.
Details
| Made by | Shenzhen Siwei Yijiu Trading Co., Ltd. |
|---|---|
| Active substance | Undecylenic Acid Solution |
| Strength | 1 g/4mL |
| Form | Solution |
| Route | Topical |
| Packs | 3 APPLICATOR in 1 BOX / 4 mL in 1 APPLICATOR |
| NDC | 87575-4041 |
Source: NDC Directory · 2026-09-13 · not reviewed by a clinician
Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).