Jojoba Oil + Rose Hip Oil +base Pro-Niacin™ 6% Perfect-C™ 5% SKIN-DEFENSE® V 2% Capryloyl Salicylic Acid 10% Horse Oil 5% Protec™ UV 0.1%[ /quote] - This formula may have incomplete compatibility issues, although the ingredients are oil soluble. The base of the formula itself is oil, but since each ingredient is different, The team is afraid that There might be a chance to cause separation to mix Try mixing them together in small quantities first. To ensure that the separation does not occur. - The important part that the team must learn to advise. is the suitability of this formula, which is more of a concern than the stratification issue. (in which case the separation can be edited By using a binder such as Oil Blender ) selection. Uses very high amounts of active ingredients and many items. may result in the inappropriateness of the product's appearance (e.g. greasy, sticky, unappealing and may include Irritation, such as choosing LHA 10%)1. This formula contains only oil. So there is no need to worry about pH. Meaning of pH 3-6 suitable for Perfect-C will only be used in formulations that contain water. Concentration of ingredients is much less than this, very much. If members use Bio Oil and are satisfied, the team thinks that this formula will definitely make members unsatisfied. Because too many ingredients are used. 3. Can be packaged in a transparent bottle. but does not mean can be placed in the sun Or let the sun shine all the time? Although there is a formula protectant. But it should still be avoided from direct light.1.See more Perfect-C™ pH formula should be between 3-6 so find something that lowers pH LHA can be used or not and what is the PH value because the oil can't measure the pH 2.Is the intensity appropriate, usually use 2-3 drops of bio oil or Maybe mix the current cream Because the face is dry. 3. Protec™ UV added to stabilize the formula. If you put it in, must it be a tea-colored bottle only?Staff - MySkinRecipes