Compatibility of Ingredients in KA White Night Serum Base

You are asking about mixing Alpha Arbutin, Magnesium Ascorbyl Phosphate (MAP), Licorice Extract, Sea Kelp Bioferment, and Hydrolyzed Soy Protein together in a KA White Night Serum base.

The primary consideration for mixing these ingredients is the pH compatibility, particularly between Alpha Arbutin and Magnesium Ascorbyl Phosphate (MAP).

• Alpha Arbutin is most stable in an acidic pH range (3.5-6.5).
• Magnesium Ascorbyl Phosphate (MAP) is most stable in a slightly alkaline to neutral pH range (6.0-8.5).

While their optimal ranges differ, they can coexist with reasonable stability if the final mixture's pH is maintained within the narrow overlapping range of pH 6.0 to 6.5.

If the final pH of your serum is outside this range, one of the ingredients will be less stable over time, leading to a reduction in its effectiveness, although this degradation is not immediate.

Other ingredients like Licorice Extract and Sea Kelp Extract are generally water-soluble and compatible in aqueous bases. Hydrolyzed Soy Protein can also be mixed in, but it might affect the texture or feel of the serum, so starting with a lower concentration (like 1%) is advisable.

The key factor determining the success of mixing all five ingredients is the pH of the KA White Night Serum base and how it influences the final pH of the mixture. Since the pH of the base is unknown, it is difficult to guarantee compatibility without testing.

Recommendation:

To determine if the mixture is stable in your specific KA White Night Serum base, it is recommended to perform a small test batch. Mix the ingredients into a small amount of the base and observe for any signs of incompatibility, such as:

• Ingredients not dissolving properly
• Formation of solid particles or precipitation
• Changes in color
• Separation of the mixture

If these immediate signs are not present, the mixture is likely stable enough for use, though long-term stability will still depend on the final pH being within the 6.0-6.5 range.