Eye Serum Formulation Review

Your formulation includes several excellent ingredients known for their anti-aging and skin-benefiting properties, such as Argan Oil, Safe B3 (Niacinamide), Vitamin E (Tocopheryl Acetate), Pal-GHK, Pal-GQPR (Matrixyl 3000), Acetyl Hexapeptide-8 (Argireline), and Repair Activator (Bifida Ferment Lysate).

However, there are a couple of points to consider for stability and suitability for the eye area:

Potential Issues and Adjustments

1. Emulsification and Stability: The amount of Satin Cream Maker (0.1%) is likely too low to properly emulsify the oil phase (19% Argan Oil + 0.5% Vitamin E = 19.5% total oil). Satin Cream Maker is recommended at 1-1.5% for effective emulsification and thickening of formulas with up to 25% oil. Using only 0.1% may result in an unstable emulsion that separates over time.

   • Recommendation: Increase the percentage of Satin Cream Maker to at least 1-1.5% for better stability and texture.

2. Lavender Essential Oil Concentration: A concentration of 0.9% Lavender Essential Oil is quite high, especially for a product intended for the sensitive eye area. Essential oils, even natural ones, can be irritating at higher concentrations.

   • Recommendation: Reduce the percentage of Lavender Essential Oil significantly (e.g., to 0.1-0.2%) or consider omitting it entirely for a gentler formulation around the eyes.

Suggested Adjusted Formulation Example

To achieve a stable serum texture and reduce potential irritation, you could adjust the formula as follows (example based on increasing Satin Cream Maker to 1.5% and reducing Lavender Essential Oil to 0.1%):

• Argan Oil: 19.0%
• DI Water: 45.4% (Adjusted to balance the formula)
• Safe B3: 10.0%
• Vitamin E (Tocopheryl Acetate): 0.5%
• Pal-GHK, Pal-GQPR: 3.0%
• Acetyl Hexapeptide-8: 10.0%
• Repair Activator Liquid: 10.0%
• Mild Preservative Eco (Ethylhexylglycerin, Caprylyl Glycol): 0.5%
• Satin Cream Maker: 1.5% (Increased for stability)
• Lavender Essential Oil: 0.1% (Reduced for gentleness)
  • Total: 100.0%

Mixing Instructions

Follow these steps, paying attention to the heat-sensitive ingredients:

1. In a beaker, combine DI Water and Safe B3. Stir until the powder is fully dissolved.
2. Add Satin Cream Maker to the water phase from step 1. Stir well to disperse the powder evenly.
3. In a separate container, combine Argan Oil and Vitamin E.
4. Slowly add the oil phase (step 3) to the water phase containing Satin Cream Maker (step 2) while mixing continuously. Mix until a smooth, stable emulsion (serum/cream texture) is formed. Avoid high-speed mixing (do not exceed 2500 rpm) as this can damage the emulsifier.
5. Once the emulsion has cooled down to below 40°C, add Pal-GHK, Pal-GQPR, Acetyl Hexapeptide-8, Repair Activator Liquid, Mild Preservative Eco, and Lavender Essential Oil.
6. Mix gently until all the added ingredients are uniformly incorporated into the serum.

This adjusted formula should provide better stability and be more suitable for the delicate eye area while retaining the benefits of the active ingredients you selected.