An ingredient manufactured by the brand Sederma under the trade name MATRIXYL syntheŠ—È6. The only research so far showing this ingredientŠ—Ès benefit comes from the brand. That research followed 25 women between the ages of 42 to 70 years old who had forehead lines and crowŠ—Ès feet. After two months, the women reported a decrease in signs of aging of 31% in some cases, and up to 100% in others using a 2% concentration of MATRIXYL syntheŠ—È6 versus the placebo.
References for this information:
Sederma. Matrixyl syntheŠ—È 6. Sederma, Inc. Claim Substantiation Sheet, 2010.