NRS 585.500
Adulterated cosmetics.
1.
If it bears or contains any poisonous or deleterious substance which may render it injurious to users under the conditions of use prescribed in the labeling or advertisement thereof, or under such conditions of use as are customary or usual; but this provision shall not apply to coal tar hair dye, the label of which bears the following legend conspicuously displayed thereon: “Caution — This product contains ingredients which may cause irritation on certain individuals and a preliminary test according to accompanying directions should first be made. This product must not be used for dyeing the eyelashes or eyebrows; to do so may cause blindness.”, and the labeling of which bears adequate directions for such preliminary testing. For the purposes of this subsection and subsection 5 the term “hair dye” shall not include eyelash or eyebrow dyes.2.
If it consists in whole or in part of any filthy, putrid or decomposed substance.3.
If it has been produced, prepared, packed or held under insanitary conditions whereby it may have become contaminated with filth, or whereby it may have been rendered injurious to health.4.
If its container is composed, in whole or in part, of any poisonous or deleterious substance which may render the contents injurious to health.5.
If it is not a hair dye and it bears or contains a coal tar color other than one from a batch which has been certified by the United States Department of Agriculture.
Source:
Section 585.500 — Adulterated cosmetics., https://www.leg.state.nv.us/NRS/NRS-585.html#NRS585Sec500.