Product: Sodium hyaluronate
CAS No.: 9067-32-7
Purity: 99.0%

Sodium Hyaluronate is well known as the best “Natural Moisturizing Factor”. In the early 1980s, the excellent moisturizing function of Sodium Hyaluronate has been widely concerned by international cosmetics industry. With its unique film-forming and hydrating characteristics, Sodium Hyaluronate is used as a highly effective humectants in cosmetics. It attracts moisture to the skin and hold moisture in the skin, which preserve skin smoothness, suppleness and elasticity. 1 gram of HA is able to retain up to 1000 gram of water. So it is regarded as the “key to the fountain of youth”. The effects are as follows:

 

(1) Moisturizing effect

Moisturizing is the most important effect of Sodium Hyaluronate in cosmetics products. It can be hydrated shell in skin surface and make the corneum hydration and softening. Compared with other humectants, Sodium Hyaluronate is less effected by the environment as it has the highest hygroscopic capacity in a relatively low humidity (e.g., in a dry winter), but has the lowest hygroscopic capacity in a relatively high humidity (e.g., in a damp summer). This unique property of Sodium Hyaluronate makes the skin adapt to different seasons.

 

(2) Skin nutrition effect

Sodium Hyaluronate is the inherent biological materials of skin. The exogenous Sodium Hyaluronate can complement the endogenous Sodium Hyaluronate. Low molecular Sodium Hyaluronate can penetrate into dermis directly to improve the nutrient supply.

 

(3) Skin repair effect

There is some evidence that topically applied Sodium Hyaluronate can reduce skin irritation from various causes. During clinical trials it was also shown that this ingredient is effective in promoting healing and fighting inflammatory conditions of the skin. Sodium Hyaluronate serves as a free radical scavenger and antioxidant, helping to protect the skin from the aging effects of excessive sunlight exposure.

 

(4) Emollient and Film-forming

Sodium Hyaluronate is high polymer with high lubrication and film-forming. Sodium Hyaluronate contained in cosmetics creates protective film on the surface of skin, which retains moisture, and at the same time prevents moisture in the skin from evaporation, so that improves freshness of the skin.

 

(5) Thickening

Sodium Hyaluronate solution have high viscosity, and 1% solution is gelatinous. It can be added to cosmetics to improve the thickening and stability. 

 

Cosmetic Benefits

One of the principle characteristics of HA is its ability to retain water, which contributes significantly to the skin maintaining a youthful appearance. Like many other essential factors, the levels of HA in the body decreases with each passing year. As the levels of hyaluronic decrease it adversely impacts the skin's ability to retain moisture, thus leading to those inevitable wrinkles.

Hyaluronic acid supplements boast a number of benefits by supporting healthy skin function. Hyaluronic acid has the potential to help reproduce healthy skin cells within a collagen matrix by increasing hydration and acting as a lubricant among the collagen matrix of the skin. Given that Hyaluronic acid is an element of the skin's construction and weakens with age, the supplements help ensure ample levels stay in the skin to sustain its overall appearance and function.

The benefits of hyaluronic acid are becoming increasingly well known as an effective anti-aging skin care treatment in the skin care industry.

Specification of HA (Cosmetic Grade) 

Items	Specifications
	Cosmetic Grade HA	HA (Low Molecular Weight)	HA-Oligo
Description	White or off-white powder or granules	White or off-white powder or granules	White or off-white powder or granules
pH	6.0-7.5	6.0-7.5	3.0-5.0
Transparency	≥99%	≥99%	≥99%
Loss on drying	≤10.0%	≤10.0%	≤10.0%
Molecular weight	≥1,800K Da	10K Da - 1,000K Da	<10K Da
Protein	≤0.05%	≤0.05%	≤0.1%
Heavy metals	≤20ppm	≤20ppm	≤20ppm
Glucuronic acid	≥44.0%	≥44.0%	≥44.0%
Bacterial counts	≤100cfu/g	≤100cfu/g	≤100cfu/g
Mold and Yeast	≤10cfu/g	≤10cfu/g	≤10cfu/g
Pseudomonas aeruginosa	Negative	Negative	Negative
Staphylococcus aureus	Negative	Negative	Negative

  

Molecular Weight (Dalton): 
1. Medium MW: > 1.5 * 10⁶ Dalton
2. High MW: > 2.0 * 10⁶ Dalton 

 

Molecular Weight (MW) and functions:

Name of products	MW Range	Functions
High Molecular Weight HA	≥1,800K Da	Excellent moisturizing, lubricating and film-forming properties on skin.
Medium Molecular Weight HA	1,000K Da - 1,800K Da	Moisturizing, film-forming and good skin-feel
Low Molecular Weight HA	10K Da - 1,000K Da	Penetrate the skin far easier
HA-Oligo	<10K Da	Penetrate better into skin and nourish the skin deeply

 

Application

Application	Products	Usage
Cleansing	Facial cleaner,body wash, facial mask, etc	Dissolving in water.  Heating can be used (<60°C).
Makeup	Lipstick, eye shadow, foundation, etc
Skin care	Creams, emulsion, essence,lotion,gel, etc
Hair care	Shampoo,hair conditioner, styling gel, hair restorer,etc

Details

Usage Scope: Cosmetic, lotion and creams for external application etc.
Package: 1kg/foil-bag. 10kg/drum. 20kg/drum.

 

Shelf life:
Product in powder or granular form should be 24 months.
1%solution should be 12 months.