(1) All salon and shop preparations must be:

(a) stored, handled, and applied to protect against contamination; and

(b) dispensed from containers to prevent contamination of the unused portion, either by use of pump, spray, or single-service spatulas.

(2) Use of the following items is prohibited:

(a) pumice stones;

(b) natural sponges;

(c) styptic pencils or lump alum;

(d) methyl methacrylate monomers for artificial nails; and

(e) for chemical exfoliation:

(i) phenol;

(ii) resorcinol;

(iii) trichloroacetic acid (TCA); and

(iv) Jessner's solution.

(3) Liquid or powder astringent must be stored and applied with a separate clean sterilized gauze or cotton pad.

(4) All acids for use in chemical exfoliation must be used in concentrations of 30 percent or less, a pH level of not less than 3.0, and shall be applied in a manner and for a duration as recommended by the manufacturer.

(5) Only commercially available products may be used for chemical exfoliation purposes. The mixing or combining of skin exfoliation products or services is strictly prohibited.

(6) When using bulk products poured into another or smaller storage container, the new storage container must be labeled with the same product name, ingredients, and warnings as the original container.