Ohio Rev. Code Ann. § 3715.66
(A) A cosmetic is adulterated within the meaning of sections 3715.01 and 3715.52 to 3715.72 of the Revised Code, if:
(1) It bears or contains any poisonous or deleterious substance that may render it injurious to users under the conditions of use prescribed in the labeling or advertisement of the cosmetic, or under conditions of use that are customary or usual, except that this provision does not apply to coal-tar hair dye if both of the following conditions are met: