Chemical/Raw Powder/Pharmaceutical/CAS. 52-90-4/L-Cysteine
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Product Highlights
- High Purity Grade: 99% purity with HPLC assay method for pharmaceutical and food applications.
- Comprehensive Certifications: Certified by ISO, FDA, Kosher, and Halal standards for global market compliance.
- Versatile Application Forms: Available in tablet and capsule forms suitable for food, health care, and medicine.
- Strong Antioxidant Properties: Supports cellular health, blood sugar regulation, and reduces oxidative stress.
- Flexible Customization Options: Offers full, minor, and sample-based customization with OEM and ODM services.
- Reliable Supply Chain: Manufacturer with 2 production lines and 10 years of export experience.
- Fast Lead Time: Peak and off-peak season lead time within 15 workdays or one month.
- Strict Quality Control: Features random visual and function inspections with traceable raw materials.
Product Attributes
- Customization
- Available
- Certification
- ISO, FDA, Sc(OS)/Jy/Kosher/Halal
- Assay Method
- HPLC
- Model NO.
- WWB20240101005
- Application Form
- Tablet, Capsule
- Application
- Food, Health Care Products, Medicine
- State
- Powder
- Extract Source
- L-Cysteine
- Product Name
- L-Cysteine
- Transport Package
- 25kg/Drum
- Specification
- 99%
- Trademark
- World Well-Being
- Origin
- Hunan
- Production Capacity
- 10t/Month
Product Images of Chemical/Raw Powder/Pharmaceutical/CAS. 52-90-4/L-Cysteine
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Product Description
| Product Name | L-Cysteine |
| Appearance | White crystal or crystalline powder |
| Specification | 99% |
| Molecular Formula | C3H7NO2S |
| CAS No. | 52-90-4 |
L-cysteine is an amino acid that is classified as semi-essential in humans, meaning that the body biosynthesizes adequate amounts of it under normal circumstances. The biosynthesis of l-cysteine requires methionine, which supplies the sulfur needed to make this amino acid. This requirement is one of the primary reasons that sulfur is an essential human nutrient.
L-cysteine is available through many dietary sources, primarily animal protein. Eggs and dairy products also contain significant levels of l-cysteine. Vegetable sources of l-cysteine include broccoli, Brussels sprouts, garlic, granola, sprouted lentils, oats, onions, and peppers. The commercial extraction of l-cysteine typically uses human hair, due to its high concentration of this amino acid. Other commercial sources include hog hair and poultry feathers. L-cysteine may also be synthesized in a process that involves fermentation by a variety of E. coli.
L-cysteine's high reactivity makes it essential in many biochemical reactions. This amino acid is a thiol, meaning that it has a sulfhydryl group at one end of its chain. This group consists of a sulfur and hydrogen atom, and is the primary reason that l-cysteine is chemically active. In particular, l-cysteine readily undergoes reduction-oxidation reactions, commonly known as redox reactions. This reactivity gives l-cysteine strong antioxidant properties, which help support cells from different types of damage.
Uses of L-cysteine
The primary health benefits of l-cysteine derive from its antioxidant properties, which helps support the body's natural ability to manage and regulate blood sugar levels. It also supports digestive health, manages blood sugar levels and maintains the skin's appearance.
Skin health support
L-cysteine can also help your skin to maintain a healthy appearance, since it's an essential component of the proteins that make up connective tissue.
Digestive health support
L-cysteine also shows promise for managing poor digestion, according to one 2009 study.
Metabolic syndrome support
Various studies indicate that l-cysteine may be beneficial in helping support the body's natural ability to manage and regulate blood sugar levels. It may also be able to help support healthy inflammation management.
Exercise recovery
Exercise increases the production of free radicals, which cause cellular damage through oxidative stress. L-cysteine supplements can help you recover from exercise more quickly by suppressing free radical production.
Company Introduction-Hunan World Well-being Co., Ltd

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About the Supplier
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Company Profile
Hunan World Well-Being Bio-Tech Co., Ltdis an enterprise engaged in R & D, production and sales of botanical extract. The company has complete equipment for Equiped with extraction, concentration, column chromatography, spray drying, vacuum drying, crushing, mixing, screening, packaging, HPLC, GC, atomic absorptior, spectrophotometer, ultraviolet-uisible spectrophotometer, rapid moisture meter. It has a clean area of more than 400 square meters, perfect pilot plant equipment and crystallization and purification equipment for high-content products. It can process more than 1000 tons of Chinese herbal medicine raw materials every year. Convenient transportation. The company provides plant extracts for processing, which are produced in full accordance with the customer's production process requirements, and strictly keep the customer's information confidential.
Our company is an enterprise specializing in the production and sale of natural green extracts, pharmaceutical intermediates, food and health food, cosmetics, food additives, feed additives as raw materials. The company has a number of scientific research, management and technical backbones, and has established close technical cooperation relations with colleges and universities and research institutions at home and abroad, and has hired domestic and foreign biotechnology experts as R & D consultants all the year round, as a strong backing for the company's R & D and technological upgrading. Relying on the independent cultivation and introduction of high-tech talents at home and abroad, and close cooperation with many scientific research institutions, a multidisciplinary, all-round and high-level technical and management elite team has been formed in the fields of extraction and separation, synthesis, fermentation, pharmacy, functional food chemistry, nutrition, biology, engineering, management and molecular structure modification. The company has complete extraction, separation, synthesis, physical sterilization and other production equipment, rich production experience and strict quality control system, and has established a perfect sales service system, with import and export rights and self-care inspection qualification.
Based at home and facing the world, the company takes innovation as the core of the enterprise in concept, mechanism, management, marketing, technology, products and other aspects, implements near -, medium - and long-term planning oriented management, ensures the long-term, sustainable and leap forward development of the company, comprehensively improves the comprehensive quality of the enterprise, and forms its own intellectual property rights as the core technology, core products and management mode unique to scientific and technological small and medium-sized enterprises, To adapt to the development trend of global economic integration. The company takes into account the interests of shareholders, employees, society and other aspects, seeks the harmonious unity of the enterprise, nature and society, and makes more contributions to the country and society.
We always adhere to the business development concept of "innovation, integrity, quality products and user satisfaction are fundamental", adhere to the enterprise management policy of "harmony, efficiency, scientificity, enlargement and strengthening, and multiple contributions", and strive for the long-term survival and development of the enterprise with cost-effective products, reputation of doing what you say, customer satisfaction, and win-win services.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 133, Lanxiang Road, Caojiapeng Community, Baofeng Street, Shimen County, Changde, Hunan, China
-
Plant Area
- 16899 square meters
-
Number of Employees
- 50
-
Registered Capital
- 6,000,000 RMB
-
Terms of Payment
- T/T, PayPal
-
International Commercial Terms(Incoterms)
- FOB, CFR, EXW, CIF
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1kg
-
Supply Chain Partners
- 24
Our Production Capability & Technical Expertise
-
Main Products
- Sophora Japonica Extract, Rutin, Quercetin, Eucommia Ulmoides Extract, Green Tea Extract, Tongkat Ali Extract, Ginkgo Biloba Extract, White Peony Extract, Artichoke Extract, Ashwagandha Extract
-
Production Lines
- 2
-
Production Machines
- Extracting Tank, Concentration Tank, Resin Column, Disk Centrifuge, High-speed Centrifuging And Spraying Drier
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2013-01-10
-
Export Year
- 10 years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea), Domestic
-
Repeat Buyers Choice
- 10%~30%
-
Number of Foreign Trading Staff
- 8
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What is the purity level of L-Cysteine?
- The product has a purity of 99% and is tested using the HPLC assay method.
- What certifications does the product hold?
- It is certified by ISO, FDA, Kosher, and Halal standards.
- What are the available application forms?
- The product is available in tablet and capsule forms.
- What are the main health benefits of L-Cysteine?
- It supports blood sugar regulation, digestive health, skin appearance, and provides antioxidant protection against oxidative stress.
- What is the minimum order quantity?
- The minimum order quantity is 1kg.
- What payment terms are accepted?
- We accept T/T and PayPal.
- What is the lead time for production?
- The lead time is within 15 workdays or one month for both peak and off-peak seasons.
- Do you offer OEM and ODM services?
- Yes, we provide OEM, ODM, and various customization options including full, minor, and flexible customization.
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