The minimum requirements for selling a product are:
1. Product Information File (PIF) held in the EU and / or UK. For information about the content of the PIF see 2015 PIF Guidance document from Cosmetics Europe. There is no central database for this, but a copy needs to be retained at an address in the EU and / or UK which is included on the label.
2. CPSR (Cosmetic Product Safety Report ie. safety assessment report)
3. Notify the EU CPNP portal and / or the UK SCPN service (UK Guidance for SCPN; user manual for EU CPNP and instruction video for CPNP)
4. Correct labelling of the product (labelling guidance from Cosmetics Europe)