3g lipstick is not a sample. The difference between the lipstick set and the sample is the grams of lipstick and the size of the package, but there is no difference. Tf lipstick dress is 3g, so it is not a sample.
Lipstick samples are samples of lipstick, which are not for sale and are usually given to customers. Sample is a cosmetic term. Refers to the trial products provided to customers before using genuine products.