Product Name : Low Molecular Weight Hyaluronic Acid
Inci name: Sodium Hyaluronate
Cas. No. : 9067-32-7

Properties and areas of use: Sodium Hyaluronate, a derivative of hyaluronic acid (HA), is a very popular ingredient in skincare. Naturally found in the skin, it is used especially in moisturizing and anti-aging products due to its ability to attract and retain moisture. It does not cause allergies or irritation on the skin, so it is also suitable for sensitive skin. It is widely used in moisturizing creams, serums, lotions, and gels to maintain the skin's moisture balance. It is included in anti-aging product formulations to fill fine lines and wrinkles and increase skin elasticity. It is used in eye creams and serums to moisturize the delicate skin around the eyes and reduce the appearance of fine lines. It is found in night creams, masks, and post-peel care products to support skin renewal and improve the overall appearance of the skin. It is used in therapeutic creams and lotions to soothe irritated skin, reduce sensitivity, and repair the skin barrier. In make-up products, especially foundations, BB creams, and primers applied to the skin, it is used to keep the skin moisturized and smooth throughout the day.

Physical Structure: In its pure form, it is found as a white or slightly yellowish, fine powder or granule. The viscosity of Sodium Hyaluronate varies depending on its concentration and molecular weight in the solution. The low molecular weight form has a lower viscosity, while the high molecular weight form forms a thicker and stickier solution. It is quite stable against light, heat, and oxidation, but it may lose its effectiveness if exposed for long periods when dissolved. It is generally a stable compound and can be used in a wide range of product formulations. It should be stored in a cool and dry environment. It should be kept away from moisture. Due to its hygroscopic nature, it can absorb moisture and begin to dissolve.

Recommended pH range: The recommended pH range for Sodium Hyaluronate is generally between 5.0 and 8.0. This pH range is ideal for maintaining the stability of the compound and for it to work effectively on the skin. Within this range, Sodium Hyaluronate functions as an effective humectant in skincare products and can work in harmony with other ingredients in the formulation. Very low pH levels (acidic environments) can reduce the effectiveness of Sodium Hyaluronate or cause its degradation, while very high pH levels (alkaline environments) can also negatively affect the structure of the compound. In skincare products, it is recommended to adhere to this pH range to maximize the effect of Sodium Hyaluronate and maintain its stability.

Solubility: Easily soluble in water. When dissolved, it forms a clear or slightly opaque, viscous solution. Insoluble in oil.

Function: It maintains the skin's moisture balance by drawing water from the environment. It has the capacity to hold 1000 times its weight in water, which makes it an excellent moisturizer. It strengthens the skin barrier and reduces transepidermal water loss (TEWL), thus helping the skin stay moisturized. It is an antioxidant that can protect the skin against damage caused by free radicals. It moisturizes the skin, providing soft, smooth, and flexible skin.

Recommended usage rate: In moisturizing creams and lotions, 0.1-0.5% is ideal for providing light hydration to the skin. For more intense hydration and skin plumping effects, 0.1-1% is used in serums. 0.1-0.2% in eye area products; 0.5-1% in masks and intensive care products to provide deep hydration; 0.1-0.3% in daily moisturizing products; and 0.05-0.1% in make-up products to keep the skin moisturized throughout the day.