Kerasyn™ (L-Cysteine, 100%)
Cosmetics
Code: 7056
Hair contains high amounts of L-Cysteine, and when the amount of L-Cysteine is reduced, it is found that the hair is not strong and easily damaged. Currently, there are hair care/maintenance products that use L-Cysteine as an important component.
Kerasyn™ is more than 98% pure L-Cysteine.
Hair contains high amounts of L-Cysteine, and when the amount of L-Cysteine is reduced, it is found that the hair is not strong and easily damaged. Currently, there are hair care/maintenance products that use L-Cysteine as an important component.
Use: for hair care products
Mixing method: dissolved in water Can withstand heat up to 60 degrees
Usage rate: 0.1-3%
Product characteristics: White flake powder with a characteristic sulfide odor.
Solubility: soluble in water
INCI Name : L-Cysteine
Examples of products that use L-Cysteine
RGIII Volume Hair Treatment
Andalou Age Defying Scalp Intensive Thinning Hair Treatment
Nexxus Botanoil Botanical Treatment Shampoo
ETUDE Silk Scarf Damage Protein Solution Conditioner
Esthetic House CP-1 Bright Complex Intense Nourishing Shampoo
- Room (25-40C)
- 24 Months from manufacturing or testing date.
- 0.10% - 3.00%
- 1.00%
- Add into water phase. Avoid temperature above 60C.
- Avoid heat above 60C
- 3.50 - 7.00
- Soluble in Water
- › CYSTEINE
- -
| Test Name | Specification |
|---|---|
| Specific Rotation | +8.3 to +9.5 degree |
| Transmittance of Solution | 95% Min |
| Assay | 98.0-101.0% |
| Heavy Metals (Pb) | 10ppm Max |
| Chloride (Cl) | 0.04% Max |
| Arsenic (As2O3) | 1ppm Max |
| Loss on Drying | 0.5% Max |
| Residue on ignitionResidue on Ignition | 0.1% Max |
| pH Value | 4.5-5.5 |
| Iron (Fe) | 10ppm Max |
| Ammonium (NH4) | 0.02% Max |
| Sulfate (SO4) | 0.03% Max |
| Other amino acids | Chromatographically qualified |
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