How to Mix Double Hyaluron Liquid and Whether Preservative Is Needed

Question

I would like to know how to mix Double Hyaluron Liquid. How should it be mixed, or can it be used directly? Do I need to add a preservative?

Answer 1

How to Mix Double Hyaluron Liquid

Double Hyaluron Liquid is a liquid type of hyaluronic acid that is easy to use.

Mixing Method: You can mix it directly into the water phase of your formulation. It dissolves immediately in water.
pH Range: The formula should have a pH in the range of 3-9.

Regarding preservatives, Double Hyaluron Liquid is already preserved with Phenoxyethanol 0.8%. Therefore, you do not need to add a preservative to the Double Hyaluron Liquid itself. However, if you are incorporating it into a larger cosmetic formulation, the final product may require appropriate preservation depending on its ingredients and water content to ensure stability and safety.

Answer 2

As of May 17, 2026, Double Hyaluron Liquid remains a highly effective and easy-to-use ingredient, featuring a 5% total concentration of Sodium Hyaluronate (split between Nano and Standard molecular weights). To maintain its efficacy and stability, it is recommended to store the liquid in a refrigerator, protected from both light and air. While the ingredient is pre-preserved with 0.8% Phenoxyethanol, you should still evaluate the overall preservation of your final formula, particularly when incorporating other active ingredients. For those seeking even more comprehensive hydration across multiple skin layers, newer advanced options like 4D Hyaluronic Acid or 8D Hyaluronic Acid are now available as alternatives.