Formulation Feasibility and Alpha Arbutin pH in Serum

Asked by: pare_natsinee On: May 20, 2014 Product Type: Cosmetics Answered

Question

I would like to ask about the feasibility of the following serum formulation (100 ml volume):

  • Water 95%
  • Alpha Arbutin 2%
  • Bio-Yeast Essence™ 2%
  • Hyaluronic Nano Molecule 0.5%
  • Hyaluronic Standard Molecule 0.5%

Is this formulation possible? Also, since Alpha Arbutin has a slightly acidic to neutral pH, will adding 2% make the formula too acidic for the other ingredients? If so, can I add a pH adjuster, or should I omit Alpha Arbutin?

Answer

Formulation Feasibility and pH Concern

Regarding your proposed formulation with Water 95%, Alpha Arbutin 2%, Bio-Yeast Essence™ 2%, Hyaluronic Nano Molecule 0.5%, and Hyaluronic Standard Molecule 0.5% (total 100 ml):

  • Yes, this formulation is possible to create.
  • The resulting texture will be quite liquid, with only a slight viscosity provided by the Hyaluronic Acid Standard Molecule.
  • It is important to add a preservative to this formula to prevent microbial growth.

Regarding your concern about the pH of Alpha Arbutin:

  • At a concentration of 2%, Alpha Arbutin will cause the pH of the formula to decrease slightly, but not significantly enough to cause issues for the other ingredients or irritate the skin.
  • Therefore, you do not need to adjust the pH or remove Alpha Arbutin from the formula due to pH concerns.

Tags

Formulation Feasibility Preservation Serum pH Adjustment pH Suitability