How to Make Clear Serum-Cream (Gel-Serum) with Pro Polymer

Based on your question and the staff's recommendation, you can create a clear serum-cream (gel-serum) using Pro Polymer. Here is a guide for a 20g batch:

Recommended Usage Rate

Pro Polymer is typically used at 0.5% to 1.0% to create a gel texture. Using 0.5% will result in a lighter, more serum-like texture, while 1.0% will yield a slightly thicker gel.

Calculated Amounts for a 20g Batch

• For a lighter serum (0.5% Pro Polymer):

  • Pro Polymer: 0.1g
  • Water (Distilled/Deionized) + Other Ingredients (Water-soluble): 19.9g

• For a slightly thicker gel (1.0% Pro Polymer):

  • Pro Polymer: 0.2g
  • Water (Distilled/Deionized) + Other Ingredients (Water-soluble): 19.8g

• Note: The "Other Ingredients" amount includes any water-soluble actives, humectants (like glycerin or hyaluronic acid solution), extracts, or preservatives you wish to add. Ensure the total weight of these plus water equals the amount listed.*

Detailed Steps

1. Prepare the Water Phase: Weigh out the required amount of water into a clean container. If adding other water-soluble ingredients (like glycerin, humectants, or actives), dissolve them in the water first.
2. Add Pro Polymer: Slowly sprinkle the calculated amount of Pro Polymer powder onto the surface of the water phase while stirring continuously. Stir gently for 3-5 minutes. Avoid high-speed blending (above 2500 rpm) as this can damage the polymer structure.
3. Hydrate and Gel: Continue stirring gently or let the mixture sit to allow the Pro Polymer to fully hydrate and form a clear gel. Full hydration may take some time.
4. Add Remaining Ingredients: If you have any heat-sensitive ingredients, pH adjusters, or preservatives that were not added in step 1, add them now and stir until evenly dispersed.
5. Check pH: Pro Polymer works best within a specific pH range. Check the pH of your final product and adjust if necessary using a suitable pH adjuster.
6. Preserve: Add a suitable preservative at the recommended usage rate to prevent microbial growth.
7. Package: Once the gel is smooth and complete, transfer it to a clean container.

Important Notes

• Electrolytes: Pro Polymer has good electrolyte resistance, but high amounts of electrolytes (substances containing Sodium, Magnesium, Calcium, Potassium) can reduce viscosity. If your formula contains significant electrolytes, you might need to use a higher percentage of Pro Polymer (e.g., 2-3%) to achieve the desired thickness.
• Storage: Store Pro Polymer powder at room temperature in a tightly closed container, protected from sunlight, heat, and moisture.

By following these steps, you can create a clear serum-cream base using Pro Polymer, which you can then customize with your desired active ingredients.