Cosmetics Formulation Development

Questions 1. I want the pH of the formula to be about 3.5, can I enter Prebio-care with Yeast Radiance that is recommended to be in a formula with a pH of 4 or higher? 2. If the formula has a pH = 4, will affect the efficiency of Ampho-Glycolic 3. Can it be mixed together? Can it be with a hand blender? 4. Will the texture be absorbed easily? Serum formula 100 % 5 Ampho-Glycolic 4 Encapsulated Salicylic Acid (Powder, Timed-Release) 4 GlucoBright 4 Safe-B3 5 HumecMax 1 Ectoine 1 Japanese Cedar 2 Prebio-care 3 Yeast Radiance 3 Dimethyl Isosorbide (DMI) 1 ThixoGel 1 Mild Preserved Eco™ ( Preservative-Free ) 66 DI Water

Hello, if the pH is higher so that the ingredients in the formula can also be in the formula will make the efficiency of AHA decrease because AHA works well when the pH is low (eg from pH 2 to pH 3-4. ผลัดเซลล์ผิว will be reduced, possibly up to 50%) However, at higher pH, less irritation will also occur. This formula is not recommended if you want ผลัดเซลล์ผิว to a separate formula, it's best when the exfoliation is complete, rinse off, then another formula. One that makes skin care