KWPN-OM-CG is INNO’s high-molecular-weight Salmon PN powder for cosmetic formulations. Its INCI name is Sodium DNA, and the material is derived from salmon milt. The average molecular weight is at least 1000 kDa. Under the specified test conditions, a 2% aqueous solution has a dynamic viscosity above 100 mPa·s. Serums, gels, gel creams and masks can use this grade when their water phase needs more body.
KWPN-OM-CG is a cosmetic-grade raw material for topical products. It is not supplied for injection, pharmaceutical use or medical devices.
Key Benefits of Sodium DNA Powder (KWPN-OM-CG)
- KWPN-OM-CG contributes its own viscosity to the water phase. Allow the PN to hydrate before measuring the batch and adjusting the main thickener. It is normally used as part of the rheology system rather than as the only thickener.
- A 1% aqueous solution is clear, with absorbance at 600 nm no higher than 0.01. Transparent and translucent products are therefore realistic application directions. Polymers, electrolytes, fragrance and the preservation system may change the final appearance, so clarity must be checked again in the finished formula.
- Incoming inspection should verify the product code, molecular-weight limit and viscosity test conditions together. Two materials may share the Sodium DNA INCI name and still behave differently in a formula. The 260/280 nm ratio, protein content, loss on drying, heavy metals and microbiological limits complete the routine batch check.
| 260/280 nm absorbance ratio | 1.8 to 2.0 |
|---|---|
| Average molecular weight | ≥1000 kDa |
| Dynamic viscosity | >100 mPa·s for a 2% (w/v) aqueous solution at 25°C and 1 s-1 |
| Protein content | ≤2% (w/w) |
| Assay | 90 to 120% (current specification) |
| Loss on drying | ≤15% (w/w) |
| Ignition residue | ≤30% (w/w) |
| Heavy metals | ≤10 µg/g as Pb |
| Aerobic bacterial count | ≤100 cfu/g |
| Molds and yeast | ≤50 cfu/g |
| Specified microorganisms | Not detected |
| Bacterial endotoxin | <0.5 EU/mg |
Recommended Applications
Water-based serums and essences can use KWPN-OM-CG when the base needs more body and the raw-material solution must remain clear. The same properties suit transparent gels and translucent gel creams, where appearance and texture need to be balanced.
In gel masks and essence masks, the higher-molecular-weight grade can be tested when the base needs more cling and less run-off. For lotions and creams, introduce the hydrated PN through the water phase and evaluate the final texture after emulsification, cooling and pH adjustment.
Using KWPN-OM-CG in a formula
Disperse the powder evenly in purified water under controlled agitation. Wait until hydration is consistent before taking a viscosity reading or setting the final thickener level. Once the polymers, salts and preservation system are in place, check pH, appearance and viscosity again. Stability, preservation and package compatibility need to be assessed in the finished product.
Choosing between related INNO products: PN or PDRN?
| Selection point | KWPN-OM-CG Salmon PN | KWDN-RT-CG Salmon PDRN |
|---|---|---|
| Molecular weight | ≥1000 kDa | <1000 kDa |
| Formula direction | More body in the water phase | Clear water-based PDRN products |
| Use this grade when | The purchase specification requires high-molecular-weight | The purchase specification requires a PDRN grade |
Both grades use the INCI name Sodium DNA, but they are not direct substitutes. A change of grade can alter hydration and viscosity, so the formula and stability program must be checked again.
Ordering and storage
| Packaging | 1 g/bag |
|---|---|
| Minimum order quantity | 100 g |
| Storage | Sealed, protected from light, 2 to 10°C |
| Shelf life | 36 months under the stated storage conditions |
| Transportation | Room-temperature transportation for no more than 7 days |
Use clean, dry tools after opening. Reseal the bag as soon as sampling is complete and return it to cold storage.
Frequently asked questions
Will KWPN-OM-CG replace the thickener in my formula?
Not in every formula. The grade has a measurable effect on solution viscosity, but the final texture also depends on dosage and the rest of the rheology system. Hydrate the PN first, then adjust the main thickener.
What should I compare when changing PN suppliers?
Compare molecular weight, solution clarity, viscosity test conditions, the 260/280 nm ratio, protein content, assay basis and microbiological limits. The same INCI name does not confirm that two grades are equivalent.
Does the higher molecular weight mean stronger skin efficacy?
No. Molecular weight identifies the grade and affects formulation behavior. It does not prove a stronger cosmetic effect. Any finished-product claim needs evidence from the final formula at the intended use level.
Is KWPN-OM-CG vegan or suitable for injection?
No. The material is derived from salmon milt and cannot support a vegan claim. It is supplied only as a cosmetic-grade ingredient for topical products.
Request a grade-specific sample
For sample selection, provide the product format, target texture, process and destination market. INNO will confirm the grade and supply the current specification, COA and sample information for KWPN-OM-CG.
