Chemlock Nutrition Introduces Nutrivit® Puri-D® and Sets a New Standard for 25 Hydroxy Vitamin D3 Purity and Consistency
Cincinnati, OH – January 12, 2026 – Chemlock Nutrition has introduced Nutrivit® Puri-D®, setting a new standard in Vitamin D supplementation for animal feed. Produced in the world’s only vertically integrated, pharma-grade 25 Hydroxy Vitamin D3 (25OHD3) facility, Puri-D® deploys a patented enzymatic conversion process to deliver unmatched purity and consistency for livestock nutrition.
Puri-D® is the only full 25OHD3 where 100% of batches are made using the same process in the same facility for maximum consistency and control. Unlike conventional products that rely on multi-step synthesis, Chemlock Nutrition uses a patented enzymatic conversion process. By eliminating variables in the production process, the risk of contamination with the unwanted and highly regulated 1,25 hormone is almost zero, resulting in a higher purity final product.
Remove variables, reduce risk
Chemlock Nutrition guarantees that Puri-D® is 100% free of impurities and is flown into the USA rather than shipped on a vessel to maximize shelf life. Additionally, every batch of Puri-D® is 3rd party tested before release to the market, and Chemlock reports that no batches have ever been rejected.
Grant Shouldice, PhD, Vice President of Chemistry, Quality and Innovation at Chemlock Nutrition, said, “Nutritionists and feed formulators can’t afford uncertainty when it comes to the purity of the ingredients they are feeding animals. Unlike other products on the market which rely on fermentation, manufacturing Puri-D® with enzymatic conversion uses a highly specific proprietary enzyme to convert vitamin D3 into its 25-hydroxy form with no side reactions, resulting in a high-purity, hormone-free product you can trust.”
Setting a new industry standard
- Scientific leadership behind the Puri-D® production facility collaborated with the Chinese Feed Industry Association to define an extremely stringent standard for 1,25 Hydroxy D and beyond
- Puri-D® is the only OMRI-certified full-dose 25 Hydroxy Vitamin D3 in the US market for organic producers
- AAFCO approved for broilers and GRAS approved for swine and dairy cows
- Chemlock’s in-house chemists helped industry-leading laboratories advance and refine their 1,25 Hydroxy Vitamin D3 test methodology so that meeting FDA specifications for this molecule is unquestionable.
About Chemlock Nutrition
Chemlock Nutrition is a leading developer of advanced feed technologies for production agriculture. Our mission is to apply our deep expertise in chemistry to create more consistent, more useful, and more affordable feed ingredients that improve animal health and producer profitability.
