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Address: Rm 218, Tangxing Digital Bld, #6 Tangxing Rd, Xi’an, Shaanxi, China
Phone: +86 17791258855
Landline: +86 (0)29 81870046


Product Specification/ Purity





White Powder


Customized various dosage forms and packaging


HACCP, ISO22000, IS09001, Eu-Organic, Us Organic, HALAL, KOSHER


Product Description

L-Methionine is an essential amino acid that is important for various functions in the body. It is not produced by the body and must be obtained through diet or supplements.L-Methionine plays a crucial role in protein synthesis and is necessary for the production of other important molecules in the body, such as glutathione, taurine, and cysteine. It also helps in the metabolism of fats and assists in the detoxification of harmful substances in the liver.

Product Specifications

L-Proline 99% Purity

Certificate of Analysis


  1. Liver health: L-Methionine is believed to support liver function by aiding in the detoxification process and protecting the liver from damage caused by toxins and free radicals.
  2. Antioxidant properties: L-Methionine acts as an antioxidant and helps to neutralize harmful free radicals in the body, which can reduce oxidative stress and inflammation.
  3. Muscle growth and repair: L-Methionine is essential for the synthesis of proteins, which are the building blocks of muscles. It may help in muscle growth and repair, making it beneficial for athletes and individuals involved in physical activities.
  4. Skin and hair health: L-Methionine is involved in the production of collagen, a protein that supports the structure and elasticity of the skin. It may also contribute to the health of hair and nails.
  5. Mood and brain function: L-Methionine is a precursor to neurotransmitters like serotonin and dopamine, which are involved in regulating mood and emotions. It may have a positive impact on mental health and cognitive function.

Application Cases

Why RainWoodBiotech?

RainWood Biotech is engaged in researching, producing, and exporting concerning the field of health and fitness, cosmetics, pharmaceuticals, food, and beverages additives, and also feeding staff who have obtained EU and US organic certification, KOSHER, HALAL, ISO9001, HACCP, and ISO22000.
RainWood Biotech was established in 2006, located in Shaanxi Xi’an Hi-tech Development Zone, covering 19 acres of land with a factory construction area of around 10000 square meters.

RainWood Biotech believes that natural specialty ingredients and innovative technology are the best basis for us to serve our clients’ needs. We are capable and proud to provide the greatest product solutions to increase more value of the products themselves.

Frequently Asked Questions

Rainwood provides herbal extract, cosmetic ingredient and food additive product.

Our company has its own competitive R&D team, and currently owns more than 100 employees. Among them, there are 3 Dr. doctors majored in this field. Besides, Postgraduate employee accounts 10%, undergraduate employee accounts 15%, and professional technical personnel accounts 5%. Its professional talented personnel are completely equipped in laboratory for the quality control.
Various Detection Devices are well equipped, such as HPLC, GC, UV, TLC, Spectrophotometer, AAS, Polarimeter, Auto titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on.
The entire production process from the source of raw material, production, inspection, warehousing, customer service and other sectors are in strict accordance with the ISO9001:2015 system.
We will provide you with satisfactory products according to your requirements.

Please contact our sales person and they will guide you with an easy and professional way for your order.

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