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L-selenomethionine is a selenoamino acid in which Se replaces the sulfur of the methionine molecule. It is a natural component of the diet. Like other forms of se salts and organoselenium compounds, L-selenomethionine is readily absorbed from the gastrointestinal tract.
L-selenomethionine is an essential trace element for humans and other animals. Good nutrition is of key importance for antioxidant defense as well as efficient energy metabolism.
| Examination Items | Examination Standards | Result | Method |
| Appearance Odor |
Gray powder Characteristic |
Complies Complies |
Visual Organic |
| Loss on drying Bulk density Tapped density Heavy metals As Pb Cd Hg |
7.0% max 0.35g/ml min 0.45g/ml min 20.0ppm max 2ppm max 2ppm max 1ppm max 0.5ppm max |
5.2% 0.37g/ml 0.50g/ml Complies Complies Complies Complies Complies |
USP<731> CP2010 CP2010 USP<231>method III CP2010 HPLC HPLC HPLC |
| Assay (Selenomethionine ) Assay (Se) |
12500ppm min 5000ppm min |
12950ppm 5180ppm |
CP2010 CP2010 |
| Microbiological analysis | |||
| Total bacterial count Molds & yeast count Staphylococcus aureus Salmonella E. Coli |
10000cfu/g max 1000cfu/g max Negative Negative Negative |
10cfu/g 10cfu/g Not Detected Not Detected Not Detected |
CP2010&USP |
1. L-selenomethionine is a kind of nutritional supplement.
2. L-selenomethionine can improve the aerobic metabolism of the muscle and greatly enhance muscle strength and endurance from diet alone.
3. L-selenomethionine can be used as nutrition enhancer.
4. L-selenomethionine is one of the most popular and effective nutritional supplements as well as the indispensable product for bodybuilders.
5. L-selenomethionine is also widely used by other athletes, such as football players, basketball players and so on.
Weight |
Packing method |
1kg |
bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
10kgs,25kg or more |
by Drums or carton (2 layers plastic bag inside) |
Weight |
Delivery method |
Delivery time |
Destination |
1kg-25kgs |
EMS,DHL,UPS,Fedex |
3-7days |
Door to door |
25kgs-100kgs |
DHL,FedEx,by Air |
3-7days |
Door to door |
more than 100kgs |
by Air |
3-7days |
Door to Airport |
by Sea |
10-35days |
Door to port |
The specification is Selenomethionine 1.25%, with Selenium (Se) at 0.5%.
L-Selenomethionine provides selenium in an organic form and can be used in different supplement formulations.
The selenium content is controlled according to the product specification. This product provides 0.5% Selenium (Se), while the specified L-Selenomethionine content is 1.25%.
COA, MSDS, TDS and other quality or compliance documents can be provided according to customer requirements.
It should be stored in a cool, dry, and well-ventilated area away from direct sunlight and moisture to maintain its stability and shelf life.
Yes, it is widely used as a nutritional supplement to support antioxidant defense and overall health when taken in appropriate amounts.
