We are OPSS and EU CPNP registered. We can work with you to create your new cosmetic product, prepare your PIF, be the responsible person for your brand. We have a team of highly experienced toxicologists & assessors that can provide all the product testing to comply with cosmetic safety. Fully Insured and accredited.

Challenge Testing

Also referred to as Microbial Challenge Test or Preservation efficacy test (PET)

Tan London has a on-site laboratory and dedicated microbiologist to ensure compliance with acceptable testing standards.  We comply with ISO 11930:2012 testing procedures: Cosmetics, Microbiology & Evaluation of the antimicrobial protection of a cosmetic product.  This ISO standard is a reference method that is used to evaluate the preservation of a cosmetic formulation.  It applies to cosmetic products in the market place. 

Your product is challenged, incubated, examined at 7, 14 and 28 days.

Consultancy Fees start at £2000 per product.

MOQ starts at 2500 per product