Mixing Procedure and Stability for Serum Formula

Asked by: monrada16 On: October 30, 2016 Product Type: Cosmetics

Question

I have a serum formula with the following ingredients:

  • Aqua
  • DMAE
  • Syn-Coll
  • B5
  • Hydroxyethyl Cellulose
  • Soft Cream Maker
  • Cyclomethicone
  • Phenoxyethanol

Could you please provide the correct mixing procedure for this formula? I am concerned about stability, especially regarding heat and the addition of DMAE. What is the role of Soft Cream Maker in this formulation?

Answer

Based on the previous discussion, here are the recommended mixing steps for your serum formula containing Hydroxyethyl Cellulose, DMAE, Syn-Coll, B5, Soft Cream Maker, Cyclomethicone, and Phenoxyethanol:

  1. Prepare the gel base: Create the gel using Aqua (1) and Hydroxyethyl Cellulose (5). Follow the specific hydration instructions for Hydroxyethyl Cellulose (e.g., using hot/cold water technique if applicable for your desired concentration and method). Ensure the gel is fully formed and homogeneous.
  2. Add water-soluble ingredients: Add Syn-Coll (3), B5 (4), and Phenoxyethanol (8) to the prepared gel base. Mix well until all ingredients are evenly dispersed.
  3. Incorporate the emulsifier: Add Soft Cream Maker (6) to the mixture. Mix or blend until the Soft Cream Maker is completely dissolved and incorporated.
  4. Add DMAE: Gradually add DMAE (2) to the mixture, mixing thoroughly after each small addition. DMAE is high in electrolytes, and gradual addition helps maintain stability.
  5. Add Silicone: Finally, add Cyclomethicone (7) to the mixture. Mix or blend until the Cyclomethicone is fully combined with the gel/emulsion base.