A spokesperson for the agency responded that “under the law, cosmetic products and ingredients generally do not need FDA premarket approval, and hair dye manufacturers are not obliged to inform ...
Background: Finding alternative hair dyes for individuals allergic to para ... from the newer PTDS-based products. Recently, many manufacturers have started to produce permanent and demipermanent ...
A spokesperson for the agency responded that “under the law, cosmetic products and ingredients generally do not need FDA premarket approval, and hair dye manufacturers are not obliged to inform ...