“Closest ingredient-family evidence: topical 0.1% hyaluronic acid formulations of different molecular weights improved skin hydration and elasticity and reduced wrinkle depth; high-MW HA supports surface hydration/film-forming effects.”
Hyaluronic Acid (Standard Molecule, 1M Daltons)
Cosmetics
Code: 79
Standard 1M Da Sodium Hyaluronate powder for water-based moisturising formulas that need balanced hydration, light gel body and a soft surface film.
Hyaluronic Acid (Standard Molecule, 1M Daltons) is a cosmetic hyaluronic acid powder for water-based moisturising formulas.
This grade is Sodium Hyaluronate with molecular weight 0.8M-1.5M Da. It is designed for balanced surface hydration with light gel body and a soft film feel.
Molecular weight strongly changes how hyaluronic acid behaves in a formula: lower molecular weight grades give a lighter skin feel, while higher molecular weight grades contribute more surface hydration, viscosity and film feel.
Product Description: This standard-molecule grade stays mainly on the upper skin surface and stratum corneum. It binds water, gives a smoother hydrated feel and can add light body to serum or gel systems without the heavier film of very high molecular weight grades.
COA specification includes sodium hyaluronate minimum 95%, glucuronic acid minimum 46%, pH 6.0-7.5 in 0.1% water solution and high transparency in solution.
When the formula is not already preserved, add an appropriate preservative system. Hydrated hyaluronic acid gels are water-rich systems and can lose viscosity or become contaminated without preservation.
Usage: Suitable for hydrating serums, gels, lotions, creams, masks, essences and other water-phase cosmetic products.
Mixing method:
- Disperse slowly into the water phase while mixing. Sprinkle onto the water surface gradually to avoid clumps.
- For small lab batches without a homogenizer, shake or mix well, then allow time for full hydration before final viscosity adjustment.
- Maintain final formula pH about 3-9 and avoid unnecessary high heat or excessive shear after hydration.
Usage rate: 0.1-0.5%
Product characteristics: White powder, average molecular weight about 1M Da, specification range 0.8M-1.5M Da.
Solubility: Water soluble. Hydration is easier when the powder is added slowly into a moving water phase.
Storage: Keep tightly closed in a cool, dry place away from sunlight and heat. For long-term storage, refrigeration is acceptable when condensation is avoided.
INCI Name: Sodium Hyaluronate
- Fridge (1-10C)
- Room (25-40C)
- 24 Months from manufacturing or testing date.
- 0.10% - 0.50%
- 0.10%
- Disperse slowly into water vortex. Allow 30+ minutes hydration time. Avoid temperature above 50C and excessive shear.
- Avoid heat above 60C
- 3.00 - 9.00
- Soluble in Water, Soluble in glycols, Dispersible in water, Dispersible in cream or gel base
- Cream, Lotion, Clear Gel, Toner, Mask, Lip, Foundation, Primer, Sun Screen, Body Butter
- -
| Test Name | Specification |
|---|---|
| Appearance | White powder |
| Odor | Odorless |
| Glucuronic Acid | Min 46.0% |
| Sodium Hyaluronate | Min 95.0% |
| Molecular Weight | 0.8M-1.5MDa |
| pH (0.1% Water Solution) | 6.0 ~ 7.5 |
| Protein | Max 0.05% |
| Limiting viscosity | 14.5-23.6dl/g |
| Transparency (0.1% Water Solution) | Min 99.0% |
| Residue on ignition | Max 20.0% |
| Loss on drying | Max 10.0% |
| Heavy Metals (as Pb) | Max 20ppm |
| Arsenic | Max 2ppm |
| Hemolysis | Negative |
| Total plate count | Max 100 CFU/g |
| Total yeast & mold | Max 50 CFU/g |
| Pseudomonas aeruginosa | Negative |
| Staphylococcus aureus | Negative |
| Viable hemolytic streptococcus | Negative |
“Topical HA serum improved skin hydration, plumpness, smoothness, fine lines/wrinkles and overall skin appearance in a clinical facial-use study.”
“Ingredient-family review: HA-based topical cosmeceuticals have clinical support for improving skin hydration, rejuvenation and visible signs of aging.”
“Closest ingredient-family evidence: single application of a sodium hyaluronate-containing topical product significantly improved skin hydration for up to 24 hours and improved barrier-function parameters.”
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