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Cosmetic Grade Fermented L-Ergothioneine Powder 99% EGT CAS 497-30-3 Bio-fermentation Skincare Raw Material
FERMENTED L-ERGOTHIONEINE 99% POWDER
Cosmetic Grade Raw Material | CAS 497-30-3 | Bio-Fermentation
L-Ergothioneine (EGT) is a naturally occurring amino acid derivative produced through advanced bio-fermentation technology. This cosmetic-grade raw material features high purity, excellent stability, and reliable batch-to-batch consistency, meeting the quality demands of cosmetic and personal care product manufacturers worldwide.
Product basic information
| Property | Details |
|---|---|
| Product Name | L-Ergothioneine (EGT) |
| Also Known As | Ergothioneine, Thioalanylhistidine |
| CAS No. | 497-30-3 |
| Appearance | White to Off-White Crystalline Powder |
| Assay (Purity) | ≥ 99.0% (HPLC) |
| Solubility | Freely Soluble in Water |
| Application Field | Cosmetics & Personal Care |
| Storage | Store in Cool, Dry Place, Protected from Light |
* Full testing data is documented in the Batch Certificate of Analysis (COA).
Tested & Certified
Material characterization & quality assurance
Bio-Fermentation Origin
Derived through controlled bio-fermentation, ensuring natural sourcing and high purity consistency across production batches.
High Purity Profile
≥ 99.0% assay by HPLC, delivering a reliable quality benchmark for demanding cosmetic formulation requirements.
Excellent Formula Compatibility
Demonstrates good solubility and stability in a wide range of cosmetic systems, including water-based serums, creams, and lotions.
Reliable Bulk Supply
Consistent manufacturing capacity with strict quality control, supporting scalable supply for global cosmetic brands and contract manufacturers.
Professional Process
End-to-end quality management system
Strain Selection
Selecting high-yield strains suitable for L-Ergothioneine production through bio-fermentation.
Fermentation
Controlled fermentation process under optimized conditions to maximize EGT accumulation.
Extraction
Efficient extraction of L-Ergothioneine from the fermentation broth.
Purification
Multi-stage purification to achieve ≥ 99.0% purity target.
Drying & Milling
Converting purified EGT into fine powder meeting particle size specifications.
Quality Testing
Comprehensive analysis including assay, heavy metals, microbiology, and stability testing before release.
Certificate of Analysis (COA)
| Product Name | L-Ergothioneine (EGT) | Batch No. | EGT2026051801 |
| CAS No. | 497-30-3 | Test Date | 2026-05-18 |
| Manufacturing Date | 2026-05-15 | Expiry Date | Refer to Batch COA |
| Items | Specification | Methods | Results |
| Appearance | White Powder | Visual | Conformity |
| Assay (HPLC) | ≥ 99.0% | HPLC | 99.3% |
| Loss on Drying | ≤ 2.0% | GB 5009.3 | 0.8% |
| Residue on Ignition | ≤ 0.5% | GB 5009.4 | 0.2% |
| pH (1% Solution) | 5.0 – 7.0 | pH Meter | 6.1 |
| Heavy Metals (Pb) | ≤ 10 ppm | ICP-MS | < 2 ppm |
| Arsenic (As) | ≤ 1 ppm | ICP-MS | < 0.5 ppm |
| Optical Rotation | +115° ~ +125° | Polarimeter | +120° |
| Total Plate Count | ≤ 100 CFU/g | GB 4789.2 | < 10 CFU/g |
| Yeast & Mold | ≤ 10 CFU/g | GB 4789.15 | < 1 CFU/g |
| E. coli | Negative / 25g | GB 4789.3 | Not Detected |
| Salmonella | Negative / 25g | GB 4789.4 | Not Detected |
| Shelf Life | Please refer to the batch-specific COA and product labelling for the exact expiry date. | ||
| Package | 1kg / 5kg / 25kg Fiber Drum | ||
| Storage | Store in a cool, dry place protected from light. | ||
Mechanism of Function
EGT at the molecular level
Formulation Applications
Versatile integration for cosmetic formulations
- Anti-Oxidant Serums & Ampoules
Formulated as a functional active ingredient in concentrated serums and ampoules targeting oxidative stress-related skin concerns. Suitable for water-based delivery systems requiring high solubility and stability.
- Daily Skincare Products
Incorporated into creams, lotions, and essences as a daily-use protective ingredient supporting overall skin wellness. Functions well in emulsion-based systems with a wide pH tolerance range.
- Functional Sun Care & After-Sun Products
Used in sun protection formulations for its complementary role in addressing UV-induced oxidative damage. Stable under exposure to light and moderate heat, suitable for outdoor-use formulations.
Professional Supply Chain & Services
Technical FAQ
Common inquiries & expert guidance
