Cosmetics Formulation Development

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Hello, the formula is worrying as follows: 1. Using Encapsulated Salicylic Acid (Liquid) which can irritate the skin. in combination with other skin care ingredients. In this case, the member will not be able to control the use of Salicylic Acid , that is, if found to be irritating. It was necessary to stop using the whole formula. which includes Stop taking care of your skin as well. Usually the team would like to suggest that To use Salicylic Acid should be separated into another formula. Will be able to control the use much better. 2. Using ascorbic acid in a formula with a variety of ingredients, it is very difficult to do. in the formula, the pH of the formula is not sufficiently acidic. In case the value is not sufficiently acidic, Vitamin C deteriorates very quickly b. Due to the formula containing a variety of ingredients Using a variety of ingredients in recipes will complicate the stability This may require testing to see if any of the ingredients have a problem with each other.

1. The base formula above, if mixed with L-ascorbic 10%:Base 90%, will get the ph value. 2. Encapsulated Retinol seen in INCI with component Adenosine can be expected to nourish the skin from Adenosine and can this type of retinol be used during the daytime? 3. What ingredients are resistant to acidity after mixing? วิตามินซี can't get some 4. Laurocapram 2% can help นำพาสาร to nourish the skin, is it effective or do I need to add it? concentration of สารนำพา go down

1. I can't answer. Because there are many ingredients, but I guess that is higher than 4.0, which makes Vitamin C deteriorates very quickly 2. If the pH is higher than 4, the ingredients do not there should be a problem But the problem will arise with Vitamin C 4. Laurocapram cannot be used in this recipe due to some ingredients. It is oil soluble, for example, Retinol, which has performance problems. นำพา