Suppleness of the skin is determined by measuring torsion, as a function of deformation. Areas of skin treated with a placebo formulation exhibited high torsion values, indicating reduced elasticity. This test result correlates with TEWL findings. Increased water loss causes the skin to dry out; it becomes rougher and looses flexibility and suppleness. When Hydamer™ CMFP is added to the formulation, torsion values were reduced. Skin treated with Hydamer™ CMFP became noticeably softer and around 80 % smoother than untreated skin.
The findings of in-vitro studies regarding moisture binding capacity and elasticity are unequivocal. The formulation with Hydamer™ CMF obtained the best results in a panel test of the following assessment criteria: