Components and Method of Use of a Home Lipstick Lead Test Kit

摘要

Lipsticks are tested by a lead indicator solution. A lipstick is swiped across a sheet of wax paper, forming a lipstick sample. The test solution is applied, in droplet form, to the sample of lipstick, and allowed to sit for a period of time so a chemical change can occur in the solution, if there is lead present in the lipstick. A cotton swab is used to absorb the solution, and the tip of the swab picks up a bit of the lipstick sample. A color change is observed in the solution on the swab if lead is present in the lipstick. The amount of lead is determined by what color the solution changes to.

主权项

1. The method of testing lipsticks for lead content by: swiping a lipstick across a sheet of wax paper;
applying the test solution, in droplet form, on the sample swipe of lipstick by use of a sealed eyedropper bottle; allowing the solution to set on the lipstick swipe for one minute; absorbing the solution with a solid stemmed, absorbent ended, cotton swab; allowing the tip of the cotton swab to pick up an extremely small amount of the lipstick exposed to the solution; and determining lead presence by observing a change in the color of the solution on the cotton swab.