Zinc Methionine Sulfate Powder Private Label | Ausreson

CAS: 56329-42-1

MF: C5H11NO6S2Zn

MW: 310.64

EINECS: 260-113-8

Specification​: 99% min Zinc Methionine Sulfatee Powder

Sample: Zinc Methionine Sulfate Powder Avaliable

Packaging: 1kg/bag, 25kg/drum

Brand: Ausreson

MOQ: 1 kg

Appearance: White powder

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Last updated: April 2026

What is Zinc Methionine Sulfate?

Zinc Methionine Sulfate is a specialized compound where zinc is molecularly bound (chelated) to methionine, an essential amino acid. Unlike inorganic zinc (like zinc oxide or heptahydrate), this chelated structure protects the zinc from being blocked by dietary phytates—found in grains and legumes—ensuring maximum delivery to your cells.

Top Health Benefits for the 2026 Wellness Market

• Immune System Resilience: In a post-pandemic world, European consumers prioritize "immune-ready" lifestyles. Zinc is essential for T-cell function and cytokine production.

• Clearer Skin & Acne Control: Often marketed as "Skin Zinc," it helps regulate oil production and reduces inflammation, making it a favorite for clean-label beauty brands in New York and London.

• Optimal Testosterone & Men's Health: Zinc is a cornerstone for hormonal balance and reproductive health.

• Muscle Recovery: Methionine is a sulfur-containing amino acid that supports protein synthesis, aiding athletes in faster recovery.

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Uses of Zinc Methionine Sulfate.

Zinc methionine is an organic zinc analog produced by a chemical synthesis reaction between methionine and inorganic zinc sulfate and zinc oxide.

Zinc methionine resists rumen microbial degradation and has a similar absorption rate compared to zinc oxide, but has a different post-absorption metabolism rate, which reduces urinary excretion and slows the decline of plasma zinc. Addition of zinc methionine to dairy cow diets increases milk production and reduces somatic cell counts in milk, as well as hardening hoof surfaces and reducing hoof disease.

Zinc methionine is generally added at a rate of 5 to 10 grams per head per day, or 0.03% to 0.08% of the dry matter of the diet. In addition, zinc methionine has been used in fish farming, such as crucian carp and grouper, to improve growth performance, promote zinc deposition in vertebrae as well as improve the antioxidant property of fish.

How to Choose the Best Zinc Methionine Sulfate Powder?

When sourcing for the North American or EU market, look for these quality markers:

1. Heavy Metal Compliance: Must meet strict EU (EFSA) and FDA standards (Lead < 1ppm, Arsenic < 1ppm).

2. Particle Size: Fine powder (< 80 mesh) is crucial for uniform blending in capsules or tablets.

3. Third-Party Testing: Ensure the COA (Certificate of Analysis) is provided by an accredited lab.

Preparation of Zinc Methionine Sulfate.

A method of preparing zinc methionine, comprising the following steps: 

(1) salt-forming reaction step: to a 100-liter reaction kettle with a heating device, electric stirring, and a thermometer, put in 100 moles of methionine, 1500 moles of water, 55 moles of zinc oxide, and 2 moles of formic acid, and react under stirring with simultaneous heating at 70-80 ℃, Chemicalbook reacted for 6 hours under stirring. Stop heating, salt formation reaction is completed. 

(2) Drying step: the granular product obtained by centrifugal separation is placed in a stainless steel drying sieve with upper and lower air permeability, and put into a drying oven for drying; after 24 hours, the product obtained is sifted, and the finished product of zinc methionine is obtained, and the zinc methionine product contains zinc content of more than 15%.

Frequently Asked Questions about Zinc Methionine Sulfate

Q: What is the difference between zinc methionine sulfate and regular zinc sulfate?

The biggest difference lies in bioavailability. Zinc methionine sulfate is a chelate of methionine and zinc. This organic form is closer to the naturally occurring form in organisms, thus allowing for more efficient absorption and utilization by the intestines, reducing gastrointestinal irritation and antagonistic effects with other minerals that may be associated with inorganic zinc.

Q: Has the EU approved its use in animal feed?

Yes. The European Commission, through Implementing Regulation (EU) 2019/1125, officially authorized zinc methionine sulfate chelate as a feed additive for all animal species. Previously, the European Food Safety Authority had issued a scientific opinion on its safety.

Q: What are the main purchase specifications for this product?

Common specifications in commercial supply are categorized by purity, primarily 95% and 98% high purity. Packaging specifications range from gram-level (e.g., 5g, 20g, 100g, for research) to kilogram-level (for industrial production).

Q: How can I ensure product quality when purchasing?

You should request suppliers to provide product specifications, safety data sheets, and traceable batch analysis certificates. For critical applications, you can verify that basic information such as the CAS number and molecular formula matches 56329-42-1 and C₅H₁₁NO₆S₂Zn.

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