Dissolving 4MSK Powder and Formulating a Whitening Serum with NanoRes and Nano-TXA

Asked by: Maritahanson On: March 21, 2026 Product Type: Cosmetics

Question

How can I dissolve 4MSK powder into a stock liquid to formulate a serum using NanoRes™ Liposome and Nano-TXA™ Base?

Answer

To dissolve 4MSK (Potassium Methoxysalicylate) and combine it with NanoRes™ and Nano-TXA™ to create a high-efficacy whitening serum, follow these guidelines:

1. Dissolving 4MSK Powder

4MSK is highly water-soluble. You can dissolve it directly into the water phase of your formula or create a "stock liquid" (concentrated solution) for easier measurement.

  • To make a 10% Stock Liquid: Mix 10 grams of 4MSK powder with 90 grams of distilled water.
  • Temperature: You can use room temperature water. If it dissolves slowly, you may use gentle heat, but do not exceed 60°C, as high heat can degrade the active.
  • Appearance: The solution should be clear and light-colored.

2. Formulation Steps (Serum)

Since you are using Nano-TXA™ as your base, it acts as a penetration enhancer for the other water-soluble actives.

Recommended Order of Mixing:

  1. Base: Start with Nano-TXA™ (Tranexamic Acid Nano Emulsion). This will serve as the primary vehicle (90-100% of the formula).
  2. Add 4MSK: Add the 4MSK (either as powder or your prepared stock liquid). The recommended usage rate for 4MSK is 1-3%. Stir until completely clear.
  3. Add NanoRes™: Add NanoRes™ (Liposome 4-Butyl Resorcinol) at a rate of 1-10%. Stir gently until homogeneous.
  4. pH Adjustment: Check the final pH of the serum. For maximum stability of the nano-emulsion and liposomes, the pH should be between 4.0 and 7.0.

3. Important Considerations

  • Electrolyte Effect: 4MSK is an electrolyte. If you decide to add a thickener (like Carbomer or certain Gums) to turn the liquid into a gel, the 4MSK may cause the gel to thin out or lose viscosity. If you need a thicker texture, use an electrolyte-resistant thickener.
  • No Oil: Do not add any oils or oil-soluble ingredients to this mixture. Nano-TXA™ is a nano-emulsion that can be destabilized by the addition of external oils, which would affect its penetration capabilities.
  • Synergy: This combination is excellent for whitening. 4MSK helps with the skin bleaching process and works synergistically with Tranexamic Acid (found in Nano-TXA™) to target melanin production from multiple pathways.

Summary of Ingredients

  • 4MSK (Potassium Methoxysalicylate): Whitening agent that targets melanocytes.
  • Nano-TXA™ (Tranexamic Acid Nano Emulsion): Penetration base containing 3% Tranexamic Acid.
  • NanoRes™ (Liposome 4-Butyl Resorcinol): Highly stable encapsulated 4-Butyl Resorcinol for intensive brightening.