L-Methionine is a food-grade essential sulfur-containing amino acid used in nutrition, supplements and pharmaceuticals for liver protection, antioxidant support and methylation.We supply bulk L-Methionine sourced from leading China manufacturers, available in powder form for food and beverage manufacturers worldwide. Our L-Methionine is widely used in detox supplements, methylation formulas, parenteral nutrition solutions, protein supplements and animal feed methionine source.
L-Methionine is an essential amino acid produced by fermentation or enzymatic resolution.
It serves as a methyl donor (via S-adenosylmethionine), precursor to cysteine and glutathione, and hepatoprotective agent. Used in amino acid supplements, liver-support formulas, parenteral nutrition and animal feed.
| Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Assay | ≥ 99.0% |
| Specific Rotation [α]D²⁰ | +21° to +25° |
| Loss on Drying | ≤ 0.3% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine L-Methionine with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.