BONYHAiR kept selling hair dye whose chemistry did not match the label

Guangzhou BONYHAiR Fine Chemical sold hair-dye products under the BONYHAiR name, a category where the exact ingredients are the safety promise. Dye chemistry is not a cosmetic flourish: if the label and registration file do not match the bottle, consumers and regulators cannot know what exposure they are accepting.

In March 2024 China Food and Drug Network reported that BONYHAiR hair dye in chestnut brown, batch BN52100549, failed inspection. The product contained dye ingredients not shown on the label or in the registered technical requirements, including toluene-2,5-diamine sulfate, m-aminophenol and 4-amino-m-cresol. The Guangzhou Baiyun District regulator opened an investigation into the producer.

A year later, a Guangdong drug regulator sampling notice reported another BONYHAiR chestnut-brown batch, BN52400005, with the same kind of mismatch: 2-methylresorcinol was detected even though it was not listed in the label or registration technical requirements. The issue was not one bad box; it was a repeat failure of formula control and disclosure.

The business mistake was treating registration as a filing chore instead of the product boundary. Hair dye is sold on trust that the chemistry on the label is the chemistry in the tube. Once inspectors find unlisted dye agents, the brand's promise shrinks to a regulator notice and a product nobody can read safely.