I want to mix it myself first to test the effectiveness of the formula ลดริ้วรอย Please check and ask for advice. How to mix? Can this formula be mixed? ลดริ้วรอย , Serum ลดริ้วรอย Lift and tighten Repair Activator™ 20% 4D Hyaluronic Acid 10% Lift-Now™ 5% Pal-GHK , Pal-GQPR (eq. Matrixyl 3000 ) 8% D...