INCI name: Tetrapeptide-26 Reference: Chronogen biofunctional Purity: >95% by HPLC Tetrapeptide-26 Concentration: Source: synthetic Odor: no Stability: stable Grade: cosmetic MSDS and COA: available for your reference Capacity: 800g per month Appearance: white powder 2.Functions: 1.Associated with a maintenance of expression of CLOCK, BMAL1 and PER1 2.A decrease of indued sun burn cells 3.repair of UV damage