I was just reading one of my favourite UK blogs The Natural Lounge and came across a post about two online trading stores having to temporarily remove American products due to a request from Trading Standards (In UK this is the body tasked with consumer protection and complaints).
This is not necessarily because the products are bad but likely because UK has stricter standards on products. With the exception of soap, all hair products have to
1. Be labelled correctly - (ingredient order and everything over 1%)
2. Where claims are made about efficacy, there has to be proof (e.g if you say product X strengthens hair, then you have to on request produce the tests that you did to state that claim)
3. Be laboratory tested to show absence of contamination by fungi/bacteria etc
In general the supplier of the product should provide a reseller with these documents. In USA, the FDA sort of leaves the cosmetic industry to police itself although all the things I have listed above are in effect recommendations. In USA, the risk of being sued is much higher which means most businesses that want to stay working , have to make sure that their products are safe.
In UK anyone can complain to Trading Standards and they have the power to effectively shut down a business if you fail to comply with their requests. I do have to say that as much as I promote good labelling standards and do know that many natural businesses fail to label correctly, something about this complaint to Trading Standards seems fishy (i.e why complain now when the same products have been on the shelves for years).
However, I am all for better standards, so maybe there will be some good from this.