
Get More From Your Selenium
Selenium supplementation is capped at 0.3 ppm, making the form you choose an important decision.
L-selenomethionine is readily available for immediate selenium needs and can also be incorporated into body proteins, helping build selenium reserves for later use.
Adapted from: Hachemi, M. A., Cardoso, D., DeMarco, M., Geraert, P.-A., & Briens, M. (2023). Inorganic and Organic Selenium Speciation of Seleno-Yeasts Used as Feed Additives: New Insights from Elemental Selenium Determination. Biological Trace Element Research, March.
Nutrilock® SelenoSure™ provides 100% L-selenomethionine in every batch.
Selenium yeast is produced through fermentation which can result in variability in the amount of L-SeMet in the finished product. Analysis of commercial selenium yeast sources shows wide variability in L-SeMet content across products and lots.
With SelenoSure™, nutritionists get a consistent, predictable amount of L-SeMet in every batch.
The First U.S.-Researched
L-SeMet Source
Research conducted at the University of Georgia compared Nutrilock® SelenoSure™ with sodium selenite and an OH-Se-Met analog in broilers, with all three sources providing the same 0.3 ppm of added selenium.
At Day 21, birds fed SelenoSure had significantly greater breast tissue selenium than birds receiving either the OH-Se-Met analog or sodium selenite (P<0.0001), while live performance was statistically equivalent across all three selenium sources.

No Conversion Step Needed
Nutrilock® SelenoSure™ supplies L-selenomethionine directly, rather than a precursor that must first be converted to L-SeMet. Once absorbed, SelenoSure™ can be used to support immediate selenium needs or can be incorporated into body proteins, helping build tissue selenium reserves that can be used later during times of stress.
Best Buds – Se and Vitamin E
Se and vitamin E work synergistically to reduce inflammation. Increasing vitamin E alone, without adequate Se, won’t achieve the desired effect. Supplemental Se can reduce the need for increased dosage of vitamin E. Together, they make quite a team!
Nutrilock® SelenoSure™ is the Superior Choice

Powerful, Targeted Support Against Inflammation
Nutrilock® SelenoSure™ is an advanced, highly efficient source of selenium designed to boost the production of key selenoproteins which help combat inflammation and oxidative stress. By enhancing these natural defense pathways, SelenoSure™ delivers long-lasting protection and improved overall health, especially during stressful periods.
Why It Works
Optimizes selenoprotein generation to strengthen the animal’s antioxidant system
Upregulates anti-inflammatory molecules that help maintain health and performance
Supports animals during oxidative stress, improving resilience and recovery
Quality Matters at Chemlock Nutrition
All our ingredients are manufactured in world-class facilities with various third-party certifications.
We proudly call many of America’s largest feed manufacturers and integrators our customers.
The Chemlock Standard™ program ensures that you can trust every batch, every time. All our products have a 100% Quality Guarantee.












