Review of Cream Formulation for Skin Nourishment and Anti-Itch/Irritation

Review of Cream Formulation for Nourishing and Anti-Itch/Irritation

Thank you for providing your cream formulation and instructions. Here is a review:

Ingredients:
The formulation includes several ingredients known for their beneficial properties for skin nourishment and soothing irritation/itching, such as Glycyrrhetinic Acid, Calendula Extract, Aloe Vera Extract, Allantoin, Squalane, and Phospholipids. These are well-chosen for the intended purpose. Menthone Glycerin Acetal and Peppermint Oil provide a cooling effect which can help with itching.

Potential Concern:
Please be aware that Peppermint Oil, especially at a 1% concentration in a leave-on product, can potentially cause irritation or sensitization in individuals with sensitive skin.

Mixing Instructions:
The provided instructions outline a basic two-part mixing process. While separating ingredients into phases is correct for cream making, the instructions lack crucial details for creating a stable emulsion. Key steps missing include:

• Heating both Part I and Part II to an appropriate temperature (typically 70-80°C) before combining.
• Using high-shear mixing when combining Part II into Part I to properly emulsify the mixture.
• Continuing mixing with controlled cooling until the cream reaches room temperature, adding heat-sensitive ingredients below a certain temperature.

Without these steps, the cream may not form a stable emulsion and could separate over time.

Recommendation:
The ingredients are largely suitable, but consider the potential for irritation from Peppermint Oil. The mixing instructions need to be expanded to include proper emulsification techniques (heating, high-shear mixing, controlled cooling) to ensure a stable cream. Research standard cosmetic emulsification procedures based on the specific emulsifiers/waxes you are using (Ezerra Wax, Phospholipid, Reshape Gel).