Troubleshooting Cream Formulation with Allantoin and Sym-White

Asked by: fristkiss001 On: September 28, 2018 Product Type: Cosmetics Answered

Question

I am making a cream formulation with approximately 53% water, containing 0.5% Allantoin and 0.5% Sym-White™ (Phenylethyl Resorcinol). I am encountering issues with solubility and stability. Could you please advise on how to resolve these problems?

Answer

Hello,

The staff has reviewed your cream formulation and provided the following feedback:

  1. Allantoin Solubility: Allantoin is soluble up to 0.5% in water. Your formula contains approximately 53% water, which means only up to 0.25% of Allantoin can be dissolved. Your current concentration of 0.5% is too high for the water content.
  2. Sym-White Solubility: Sym-White™ (Phenylethyl Resorcinol) needs to be dissolved in oil. Your formula does not appear to contain any oil (the staff suggests at least 3% oil) to help dissolve the 0.5% Sym-White™.
  3. Sym-White Stability: Sym-White™ can make the formula less stable and harder to emulsify. The staff recommends using a stabilizer like ClayThick Ready (at 10% instead of water) or Xanthan Gum/AnyGel (at 0.5%) to improve the stability of the cream base. They also advise adding Sym-White™ at the end, after the cream base is fully formed, and mixing it in.