L-Serine Powder CAS 56-45-1 | High Purity Amino Acid Raw Material

Serine (3-Hydroxyalanine) is a vital non-essential crystalline amino acid fermented via controlled microbial biosynthesis. Our high-purity serine powder features low moisture, ultra-low heavy metal & chloride content, uniform particle size and rapid water solubility. It serves as a core raw material for food fortification, pharmaceutical intermediates, cell culture media, cosmetic moisturizing formulas and industrial fermentation nutrition additives. Strict multi-stage purification & crystallization guarantee stable batch consistency for global B2B bulk buyers, supplement brands, biotech labs and cosmetic manufacturers.

L-Serine is a multifunctional hydroxy amino acid widely adopted across cosmetics, nutrition, pharmaceutical industry, biotechnology and fermentation sectors.

• Cosmetic & Personal Care Industry Serine acts as an effective natural humectant. It maintains skin moisture balance, improves stratum corneum hydration, enhances skin softness and relieves dryness. Widely added into facial lotion, essence, moisturizing cream, mask and mild cleansing products.
• Nutrition & Dietary Supplement Field Used in amino acid compound formulations, sports nutrition supplements and functional food additives. It participates in human protein synthesis, supports healthy metabolism and serves as an essential component of amino acid premix.
• Pharmaceutical Raw Materials Applied for compound amino acid infusion preparations, medical nutrient formulas and intermediate synthesis of pharmaceuticals. Meets strict purity and heavy metal standards for pharma-grade requirements.
• Cell Culture & Biotech Research An indispensable component of cell culture medium. It provides nitrogen source for cell growth, stabilizes culture environment and supports laboratory cell cultivation and biological research.
• Microbial Fermentation Industry Serves as organic nitrogen nutrient for strains during fermentation process. Promotes microorganism proliferation, optimizes fermentation efficiency and reduces generation of unwanted by-products.

• Independent Fermentation Factory Production

We own full-chain fermentation, purification, crystallization and drying workshops with fixed temperature & pH automatic control systems, cutting intermediate markup and delivering stable large-volume supply capacity up to 2000 tons monthly. All production processes comply with cGMP quality management rules.

• Rigorous Batch Full-Item Testing

Every finished batch undergoes full index inspection including purity, moisture, heavy metal, chloride and microbial limits before shipment. We provide official COA and support third-party SGS inspection as clients require.

• Ultra-Stable Formula Compatibility

Low moisture formula avoids powder caking during long-distance ocean transport; controlled trace chloride eliminates precipitation & degradation issues for sensitive pharma and cosmetic formulations. Uniform 80–100 mesh ensures even mixing in premix and liquid dissolving systems.

• Flexible Global Export Service
• Support palletized container loading or floor loading; offer complete customs clearance documents for all countries. Our logistics team arranges fast sea/air delivery with moisture barrier packaging to prevent damp damage on transit.
• Customized Formula & Packaging Support

We adjust purity standard, particle fineness and packaging style for industrial bulk clients and small retail OEM brands. Neutral unbranded packaging or customized private label printing is available without extra high MOQ threshold.

• 24-Hour Multilingual Trade Support

Our English-speaking sales team replies to inquiry within 8 working hours, offers free lab trial samples and one-stop technical guidance for formulation matching in food, cosmetic and biotech industries.

We provide full one-stop OEM customization solutions targeting global importers, supplement brands, cosmetic factories and biotech research labs:

• Raw Material Customization

Adjust purity ≥98.5% / ≥99.0% standard; tailor superfine mesh powder for high-solubility liquid formulas; control microbial indicators for cell culture & medical-grade requirements.

• Multi-Spec Packaging Customization

Industrial bulk: 25kg kraft bag, fiber drum, woven export bag with double moisture-proof inner liner

Retail small package: 500g sealed pouch, 1kg aluminum foil bag, OEM labeled plastic bottles

• Label & Carton Brand Customization

Support neutral blank packaging, custom brand logo printing, exclusive carton shipping marks, multilingual ingredient labels compliant with EU, US, Southeast Asia market labeling regulations.

• Flexible MOQ Policy
• Low trial MOQ for new brand startup orders; large-volume factory direct price discount for long-term framework cooperation clients.
• Full Export Document Matching
• All OEM orders can be attached with Halal/Kosher certification, origin certificate, batch test report and safety data sheet to smooth cross-border customs clearance. 

Q1: Which industries widely apply your serine powder?

A1: It is extensively used in nutritional supplement amino acid premixes, pharmaceutical compound infusion raw materials, cell culture media, skincare moisturizing cosmetic formulations, and microbial fermentation nutrient additives for biotech production.

Q2: Can this serine be directly used for microbial fermentation culture medium?

A2: Yes, our fermentation-grade serine is specially optimized for strain culture, with low impurity content to reduce by-product interference and raise microbial conversion efficiency.

Q3: How do you guarantee consistent particle size of each batch?

A3: We adopt staged cooling crystallization + double-layer vibration screening technology to control particle distribution within 80–100 mesh, reducing excessive fine powder and uneven granule problems.

Q4: Do you support customized low-microbe strict standards for medical & lab use?

A4: Absolutely. We arrange dust-free closed production and sterile packaging environments to meet low microbiological requirements for pharmaceutical injection and cell culture applications.

Q5: What measures prevent moisture absorption during sea shipment storage?

A5: All packages adopt food-grade PE moisture-proof inner liners plus outer kraft/drum protection; finished goods are stored in constant humidity warehouses before loading to lower water absorption risk.

Q6: Can you supply OEM small retail packaging for brand resale?

A6: Yes, we offer complete OEM retail packaging solutions including pouches, bottles and private label printing, suitable for online supplement and cosmetic brand sales.

Q7: What export documents can you provide for customs clearance?

A7: Full set trade documents including Certificate of Analysis (COA), MSDS, TDS, certificate of origin, and third-party SGS heavy metal & purity inspection reports. Halal/Kosher certification is also available on request.

Q8: What is the storage requirement to reach full 24-month shelf life?

A8: Seal tightly in original packaging, store in cool, dry warehouse below 25°C, avoid direct sunlight and high humidity environment; do not open inner liner before full usage.

Send inquiry or contact us to get free sample, and learn more details about it.

Send Inquiry Now

Hot Tags: L-Serine Powder CAS 56-45-1 | High Purity Amino Acid Raw Material, China L-Serine Powder CAS 56-45-1 | High Purity Amino Acid Raw Material manufacturers, suppliers, factory, amino acids for biotechnology, amino acids for inspection, amino acids for pharmaceutical use, amino acids for weight loss, amino acids in polymeric complexes, amino acids in racemic form