Complaint
| Test Items | Test Standards |
| Appearance | White to off-white powder |
| Identification | IR |
| The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in assay | |
| Optical rotation | -160°~-167° |
| Loss on drying | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Heavy metals(Pb) | ≤20ppm |
| Organic impurities | Levodopa related compound Aa≤0.1% |
| L-Tyrosine≤0.1% | |
| Levodopa related compound B≤0.5% | |
| L-Veratrylglycineb≤0.1% | |
| Any unspecified impurity ≤0.1% | |
| Total impurities≤1.1% | |
| Assay | 98.0%~102.0%(on dried basis) |
Introduction:
Levodopa is a naturally occurring dietary supplement and psychoactive drug found in certain kinds of herbs. The most common plant source of Levodopa marketed in this manner is Stizolobium cochinchin ensis (Lour) and Mucuna Pruriens. Some animals including humans make it via biosynthesis from the amino acid L-tyrosine. L-DOPA is synthesized from the amino acid L-tyrosine in the mammalian body and brain, it is the precursor to the neurotransmitters dopamine,L-DOPA can be manufactured and in its pure form is sold as a psychoactive drug with the INN levodopa. Aside from its natural and essential biological role, L-DOPA is also used in the clinical treatment of Parkinson's disease and dopamine-responsive dystonia. It is a prescription drug in the US.
1. Improved sleep (promotes deep sleep)
2. Reduced bodyfat & decreased cellulite
3.Decreased wrinkles
4.Improved skin texture & appearance
5.Increased bone density and reversal of osteoporosis
6.Increased lean muscle mass
