Taking the sting out of mildness testing

Time: 11:30 am - 12:00 pm

Date: 12 November

The number of people in developed countries who report that their skin experiences uncomfortable symptoms like tightness, dryness, itching, burning or redness is thought to be as high as 91%. It’s no wonder then, that formulators are increasingly putting mildness at the top of their agenda for a successful new product.

However, existing mildness tests were designed for irritant chemicals and not today’s gentle cosmetic formulations, meaning that subtle differences between mild products and ingredients have been difficult to identify.

Dr Carol Treasure from vegan testing lab XCellR8 and Stewart Long from human patch test specialists Cutest will share the results of their groundbreaking 2-year R&D project focused on developing a new, more sensitive test for mildness to skin.

Formulators will learn about real-world applications of the test and how they can combine ethical advantages with scientific robustness, to satisfy growing demand for ultra-mild products.


  • Why a new generation of mildness tests are needed by the beauty industry
  • How a new in vitro test method was validated against human patch tests
  • Results of comparisons of in vitro and in vivo mildness data for surfactants, surfactant blends, surfactant formulations and face masks
  • How the new XtraMild test distinguished subtle differences between a number of soaps and facial washes, providing credible scientific data for claim support
  • What other products and ingredients can be benchmarked using the growing in vitro database


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