---
kind: "section"
citation: "21 C.F.R. § 358.310"
title: "21"
number: "358.310"
heading: "Ingrown toenail relief active ingredient."
url: "https://uscodex.org/cfr/21/358.310"
---

# §358.310. Ingrown toenail relief active ingredient.


The active ingredient of the product is sodium sulfide 1 percent in a gel vehicle. The gel vehicle is an aqueous, semisolid system with large organic molecules interpenetrated with a liquid.


## Notes

### Source

Source: 68 FR 24348, May 7, 2003, unless otherwise noted.

### Authority

Authority: 21 U.S.C. 321, 351, 352, 353, 355, 360, 371.

### Source

Source: 55 FR 33255, Aug. 14, 1990, unless otherwise noted.