Analysis of Moisturizing Cream Formula and Adding Whitening Agents

Asked by: pornrutai.p On: September 01, 2015 Product Type: Cosmetics

Question

I have a moisturizing cream formula with the following ingredients and percentages:

Phase 1:

  • Sodium polyacrylate (1.2%)
  • Dicaprylyl ether (3%)
  • Carnation oil (4%)
  • Glycerin (4%)

Phase 2:

  • Hydantoin (0.6%)
  • Deionized water (remaining)
  • Sodium stearoyl Glutamate

Could you please analyze this formula, particularly its moisturizing effect? Also, is it possible to add whitening agents to this type of cream formulation?

Answer

Analysis of Your Moisturizing Cream Formula

Based on the ingredients provided, here is a breakdown of their likely functions in your moisturizing cream formula:

  • Phase 1:

    • Sodium polyacrylate (1.2%): This ingredient, likely a polymer like Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, acts as a thickener or gelling agent. It helps create the desired texture and stability of the cream.
    • Dicaprylyl ether (3%): This functions as an emollient, providing a smooth feel to the skin and helping to spread the product. Dicaprylyl Carbonate is a related ingredient with similar emollient properties.
    • Carnation oil (4%): Based on the search, this is likely a Carnation Extract (Dianthus Caryophyllus Extract) used primarily for its natural fragrance in cosmetic formulations. It is not typically expected to provide significant skin efficacy.
    • Glycerin (4%): This is a well-known humectant. It works by drawing moisture from the air and deeper layers of the skin to the surface, helping to keep the skin hydrated and feeling moisturized.
  • Phase 2:

    • Hydantoin (0.6%): This is likely a preservative such as DMDM Hydantoin, used to prevent microbial growth and extend the shelf life of the product.
    • Deionized water (remaining): This is the main solvent and base of the cream, providing hydration.
    • Sodium stearoyl Glutamate: This functions as an emulsifier. It helps to mix and stabilize the oil and water phases of the cream, preventing separation. It is often used in combination with other emulsifiers.

Overall Moisturizing Effect:
The formula includes key moisturizing ingredients like Glycerin (humectant) and Dicaprylyl ether (emollient), along with water as the base. These components will contribute to the moisturizing properties of the cream.

Adding Whitening Agents:
Yes, it is possible to add whitening agents to this type of cream formulation. However, you need to consider:

  • Compatibility: Ensure the chosen whitening agent is compatible with the other ingredients, especially the thickeners and emulsifiers.
  • Solubility: Some whitening agents are water-soluble, others oil-soluble. You need to add them to the appropriate phase.
  • pH Stability: Many whitening agents are pH-sensitive. The final pH of your cream must be within the stable range for the specific whitening agent you choose.
  • Concentration: Use the recommended concentration for the specific whitening agent.
  • Testing: Always test the stability and efficacy of the final formula when adding new ingredients.

You would need to select a specific whitening ingredient (e.g., Niacinamide, Alpha Arbutin, Vitamin C derivatives) and incorporate it correctly into the appropriate phase of your formulation, ensuring compatibility and stability.