Analysis of Your Vitamin C Serum Formula

Thank you for sharing the Vitamin C serum formula from Pantip and the helpful response from MySkinRecipes staff. Here's a breakdown based on your questions and the information provided:

1. Adjustments to the Formula

The staff confirmed the overall formula is correct. However, they noted that using 1% Vitamin E (Tocopheryl Acetate) might feel too sticky for combination skin. You might consider reducing the amount of Vitamin E (Tocopheryl Acetate) if you find the texture too heavy.

2. Water-Oil Emulsifier

Yes, the emulsifier Sodium Polyacrylate (and) Polyisobutene is available on the MySkinRecipes website. As confirmed by the staff, it is sold under the name Light Cream Maker.

3. Using Perfect-C TransDerm

You can absolutely use Perfect-C TransDerm to replace Ascorbyl Tetraisopalmitate. The staff confirmed that you should use the same quantity, which is 10 grams in your formula. Note that Perfect-C is the name used on the website for Ascorbyl Tetraisopalmitate.

4. Effectiveness for Combination Skin

The formula uses Perfect-C (Ascorbyl Tetraisopalmitate), a stable, oil-soluble Vitamin C derivative known for brightening and antioxidant properties. Combined with Vitamin E (Tocopheryl Acetate) and Disodium EDTA (a chelating agent to help with water quality), this is a good basic serum formula.

As the staff mentioned, the effectiveness depends on your specific skin concerns and goals. For combination skin, the potential stickiness from 1% Vitamin E (Tocopheryl Acetate) is the main point to consider regarding feel. The use of distilled water is crucial for the stability of the Vitamin C derivative.