§ 346.18 - Astringent active ingredients.

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The active ingredient of the product consists of any of the following when used within the concentration range established for each ingredient:

Calamine, within a concentration range of 5 to 25 percent by weight per dosage unit (based on the zinc oxide content of calamine).

Witch hazel, 10 to 50 percent.

Zinc oxide, within a concentration range of 5 to 25 percent by weight per dosage unit.