Serum Formulation Review

Regarding the serum formulation you provided, here is the information based on our review and the staff's reply:

Formula Compatibility

The ingredient list you provided is compatible and can be mixed together. This formulation focuses on anti-aging and skin nourishing ingredients, suitable for users aged 40 and above.

Substituting the Base

Yes, you can use Satin Cream Maker instead of Silky Serum Base. However, as you noted, using Satin Cream Maker will result in a cream texture rather than a serum.

Mixing Instructions (Using Silky Serum Base)

For mixing using a small hand blender, you can follow these steps:

1. Prepare the Water Phase: Weigh the sterile distilled water (60.4%) into a mixing container.
2. Dissolve Water-Soluble Ingredients: Gradually add the powder or water-soluble ingredients one by one (Safe-B3™, GlucoBright™, Repair Activator™, RETINAT™, MOIST24) to the distilled water. Stir or use the hand blender to help dissolve them thoroughly.
3. Add the Serum Base: Add the Silky Serum Base (15%) to the water phase mixture. Stir or blend until the texture is smooth and uniform.
4. Add the Preservative: Add Phenoxyethanol SA (Optiphen Plus) (1%) as the final ingredient. Stir or blend until well combined.
5. Adjust pH (If Necessary): Check the pH of the final product. If needed, adjust it to a skin-friendly range (typically around 5.5-6.5 for skin serums).

• Note:* If using Satin Cream Maker (1.5%) instead of Silky Serum Base, you will need to adjust the amount of distilled water to reach 100% (100 - sum of other ingredients - 1.5) and follow the mixing procedure for making a cream. This usually involves preparing separate water and oil/emulsifier phases before combining and blending thoroughly.

Additional Recommendations from Staff

As suggested by the staff, you can enhance the performance of the serum by adding:

• Ethoxydiglycol at approximately 3% to help improve the penetration of ingredients into the skin.
• Reservoir-Tech to help retain active ingredients on the skin surface and release them gradually, allowing the ingredients to work for a longer period.

Adding these ingredients can further boost the efficacy of your formula, especially for mature skin that requires intensive and sustained nourishment.

We hope this information is helpful. Please feel free to ask if you have any further questions.