The short version
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Zinc Undecylenate, Undecylenic Acid · ZINC UNDECYLENATE 20 g/100g; UNDECYLENIC ACID 5 g/100g · Cream · Topical · Guangzhou Saweilan Import & Export Trading Co., Ltd
NDC 85966-0007-01 · 1 BOTTLE in 1 BOX / 50 g in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.
How Part D pricing works →No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Not scored — fragility is computed for NADAC-priced NDCs.
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Guangdong Quadrant Ecological Technology Co., Ltd. | UNDECYLENIC ACID .1 g/g; ZINC UNDECYLENATE .12 g/g | Jul 15, 2026 | Sep 2, 2026 |
| Guangzhou Saweilan Import & Export Trading Co., Ltd | UNDECYLENIC ACID .05 g/g; ZINC UNDECYLENATE .2 g/g | Jul 15, 2026 | Sep 2, 2026 |
| Guangzhou Saweilan Import & Export Trading Co., Ltd | ZINC UNDECYLENATE 20 g/100g; UNDECYLENIC ACID 5 g/100g | Aug 26, 2026 | Sep 2, 2026 |
| Guangzhou Saweilan Import & Export Trading Co., Ltd | ZINC UNDECYLENATE 5 g/100g; UNDECYLENIC ACID 20 g/100g | Jul 22, 2026 | Aug 19, 2026 |
| Guangzhou Saweilan Import & Export Trading Co., Ltd | UNDECYLENIC ACID 5 g/100g; ZINC UNDECYLENATE 20 g/100g | Jul 15, 2026 | Jul 15, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Tea Tree Oil Antifungal Foot Cream — NDC 85966-0007-01," retrieved September 3, 2026, https://drugdashboards.com/drug/85966000701.
Free to cite with attribution — see how the data is put together.