L-Cysteine | CAS 52-90-4
CAS number: 52-90-4 · INCI: L-Cysteine | CAS 52-90-4
Key Benefits
- Sulfur amino acid, glutathione precursor
- Powerful antioxidant support
- Supports hair health and keratin formation
- Supports detoxification
- Supports skin health
Main Applications
- Cosmetics: moisturizing, repairing, soothing and pH-regulating active in skincare formulations
- Dietary Supplements: amino acid capsules, tablets, powders and sports nutrition
- Food: nutrition fortification, flavor enhancement and functional foods
- Feed: amino acid balancing in animal nutrition
Recommended Use Levels
Use levels depend on the finished-product category and the target claim. Contact our technical team for grade-specific guidance and samples.
EU & Regulatory Notes
Cosmetic ingredients supplied for EU markets must be used in compliance with Regulation (EC) No 1223/2009 on cosmetic products. Always verify the current Annex status and concentration limits for your finished product and market before launch; Aogubio provides full documentation (COA, SDS, technical data) to support your registration and safety assessment.
Why Buy Bulk L-Cysteine | CAS 52-90-4 from Aogubio?
- GMP-certified manufacturing: consistent quality from raw material to finished ingredient
- Complete documentation: COA, SDS and heavy metal test reports with every batch
- Flexible supply: samples to full container loads, MOQ from 1 kg
- Export experience: reliable shipping to EU, North America and Asia
FAQ
What is the CAS number?
CAS 52-90-4.
Q: What purity do you offer?
98.5% – 99.0%+ by HPLC, customizable.
Q: Which grades are available?
Food grade, cosmetic grade and feed grade.
Q: Do you provide COA?
Yes, per-batch COA with as
What purity do you offer?
98.5% – 99.0%+ by HPLC, customizable.
Q: Which grades are available?
Food grade, cosmetic grade and feed grade.
Q: Do you provide COA?
Yes, per-batch COA with assay, heavy metals and microbiology.
Q: Is it suita
What is the MOQ?
25kg/drum; samples available for evaluation.
View the L-Cysteine | CAS 52-90-4 product page for specifications and to request samples.
Aogubio Co., Ltd (Imaherb) is a GMP-certified manufacturer of bulk ingredients. Every batch ships with COA, MSDS and heavy metal test reports.