Compatibility of Multiple Actives and Adding Whitening Agents to Liquid Essence

Regarding the ingredients you asked about, including Repair Activator™ (Bifida Ferment Lysate), Marine Plankton, Artemia Extract, Pitera (Galactomyces Ferment Filtrate), DMAE, Copper Peptide, B5, 4MSK, Tranexamic Acid, Ethyl Ascorbic acid, and Ume Extract.

Ingredient Compatibility:

Most of these ingredients are popular and can often be combined in cosmetic formulations. However, actual compatibility in a finished formula depends on several factors such as the overall pH of the formula, the concentration of each ingredient, and other substances in the formula (e.g., emulsifiers, preservatives, solvents).

• Generally, Ferments, Plankton, Artemia, B5, 4MSK, Tranexamic Acid, and Ume Extract are compatible with most other ingredients.
• DMAE is slightly alkaline, which might affect the formula's pH.
• Copper Peptide might have reduced stability in very acidic conditions but is generally compatible with most ingredients.
• Ethyl Ascorbic Acid is a relatively stable form of Vitamin C, but its optimal efficacy is usually within a suitable pH range (slightly acidic to neutral).

Using each ingredient at its recommended amount is a good starting point, but it's crucial to check the compatibility and stability of the overall formula after mixing. It's recommended to test in small batches first and re-check specific ingredient guidelines from the supplier.

Adding Whitening Agents (SymWhite or Activated Resorcinol) to a Liquid Essence ("น้ำตบ") Formula:

Both SymWhite (Phenylethyl Resorcinol) and Activated Resorcinol (4-Butylresorcinol) are highly effective whitening agents.

• Challenge in Liquid Essence Formulas: These two ingredients are typically soluble in oil or certain organic solvents. Incorporating them into a water-based formula (like a liquid essence) while keeping it clear and stable might require suitable solubilizers or co-solvents. This could potentially affect the texture of the "น้ำตบ".
• Activated Resorcinol: It is highly effective but slightly more challenging to formulate than SymWhite, both in terms of stability and solubility. It may require specific solvents and careful handling regarding potential formula discoloration.
• SymWhite: Another effective option that might be slightly easier to formulate than Activated Resorcinol in terms of solubility and stability. However, it still requires appropriate solubilizers for aqueous formulas.

Recommendation:

If you wish to add these two whitening agents to a liquid essence formula, it is highly recommended to study the technical data of SymWhite and Activated Resorcinol from the supplier in detail, especially regarding solubility and recommended solvents for aqueous formulations. You might need to incorporate co-solvents like Propanediol, Butylene Glycol, or Ethoxydiglycol in appropriate amounts to aid solubility without making the formula cloudy or overly viscous.

In summary, most of your listed ingredients can be used together, but the final formula's pH and stability must be considered. Adding SymWhite or Activated Resorcinol to a liquid essence is possible but requires careful consideration of solubility and the use of appropriate solubilizers.