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Product Details
What is Melatonin? Melatonin is a hormone that helps regulate sleep. It also appears to influence other hormones in the body. Melatonin supplements have become popular as natural sleep aids. The amount of melatonin we produce is determined by how dark or light our surroundings are. Our eyes have specialized light-sensitive receptors that relay this message to a cluster of nerves in the brain called the suprachiasmatic nucleus, or SCN. The SCN sets our internal biological clock, also called our circadian rhythm, which regulates a variety of body functions including sleep. |
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| Test Item | Specification |
| Assay(HPLC) | ≥ 99.0 % |
| Appearance | A white or pale-white crystalline powder, odorless |
| Loss on Drying | 0.5% MAX |
| Identification | Positive reaction |
| Residue on Ignition | 0.1% MAX |
| Melting Point | 117~120°C |
| Heavy Metals | 10ppm MAX |
| Clarity and degree of opalescence of liquids | 1% ethanol and chloroform solution |
| Particle Size | 80-120 mesh |
| Single Impurity | 0.5% MAX |
| total Impurities | 1.0% MAX |
| Yeast & Mold(CFI) | <100/ g |
| E.coli | Negative |
| Salmonela | Negative |
* Delivery Time.
We need 1-2 days to process your order before shipping.There are two shipping methoed. Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.Slow Delivery: The delivery time for US, European countries the delivery will take 10-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 4 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.
