DERMASUN Sun SPF50+ / PA++++ Serum Formulation Breakdown

Based on the ingredient list provided, the DERMASUN Sun SPF50+ / PA++++ serum appears to be a silicone-based formulation, likely an anhydrous or water-in-silicone type, designed for a lightweight feel and effective sun protection.

Here's a breakdown of the key ingredients and their likely functions:

• Cyclopentasiloxane & Cyclomethicone: These are volatile silicone fluids that provide a light, non-greasy feel and help spread the product easily. They evaporate quickly, leaving a smooth finish.
• Dimethicone: A non-volatile silicone fluid that contributes to the smooth, silky feel on the skin and provides a protective barrier.
• Dimethicone vinyl Dimethicone crosspolymer: This is a silicone elastomer or crosspolymer. It helps thicken the formulation, provides a powdery or matte finish, and can contribute to a soft-focus effect.
• Ethylhexyl methoxycinnamate: A chemical UV filter that absorbs UVB radiation, providing SPF protection.
• Isohexadecane: A lightweight emollient hydrocarbon that helps dissolve and disperse other ingredients, reduces greasiness, and provides a smooth feel.
• Phenoxyethanol: A broad-spectrum preservative used to prevent microbial growth in the product.

General Mixing Steps (Typical for Silicone-Based Serums)

While specific percentages are needed for an exact replication, here are the general steps for mixing a serum with these types of ingredients:

1. Combine Silicone/Oil Phase: In a suitable container, combine the silicone fluids (Cyclopentasiloxane, Cyclomethicone, Dimethicone), the silicone crosspolymer (Dimethicone vinyl Dimethicone crosspolymer), the UV filter (Ethylhexyl methoxycinnamate), and the emollient (Isohexadecane). Mix well until all ingredients are fully dissolved and dispersed. The silicone crosspolymer may require thorough mixing or pre-dispersion in one of the liquid silicones or emollients.
2. Add Preservative: Add Phenoxyethanol to the mixture. Continue mixing until uniformly distributed. Ensure the temperature is below 80°C when adding Phenoxyethanol.
3. Final Mixing: Continue mixing until the serum is homogenous and has the desired texture. This type of formulation typically does not require heating or emulsification with a water phase, making the mixing process relatively simple.

• Note: This is a general guide. The exact proportions and specific mixing techniques may vary depending on the desired texture, stability, and performance of the final product. A challenge test is recommended for any cosmetic product before sale.*