| Customization: | Available |
|---|---|
| Certification: | ISO, FDA, HACCP, Kosher,Halal |
| Assay Method: | HPLC |
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| Items | Specifications | Results |
| Appearance | Fine white crystal or crystal powder | Conforms |
| Specific rotation | -62°~ -68° | -65° |
| Melting Point | 199ºC~201ºC | 199.5ºC~200.5ºC |
| PH | 5.0~7.0 | 6.1 |
| Infrared absorption spectrum identification | Corresponding to Reference Spectrum | Corresponding to Reference Spectrum |
| Assay | NLT 99% Beta Arbutin | 99.5% |
| Hydroquinone | ≤10ppm | Negative |
| Heavy metals | ≤10ppm | <10ppm |
| Arsenic (As) | ≤2ppm | <2ppm |
| Loss on drying | ≤1.0% | 0.20% |
| Residue on ignition | ≤0.50% | 0.1% |
| Total Plate Count | <1,000cfu/g | < 10 cfu/g |
| Total Yeast & Mold | <100cfu/g | < 10 cfu/g |
| E. Coli | To be negative | Negative |
| Pseudomonas Aeruginosa | To be negative | Negative |
| Staphylococcus Aureus | To be negative | Negative |
| Shelf-life | 2years from the production date. | |
| Note | 1. For external use only, consult your physician before you use it. 2. Don't blend it with methylparaben and other ingredients to avoid hydroquinone. 3. Keep it from sunlight in storage and in application. |
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