California Gold Nutrition ColostrumFirst Milking Standardized to 20%** IgG & 15%** PRPsUSDA Grade A Dairy Cows Raised in the USArBST-Free & No AntibioticsConcentrated & Low Heat ProcessedMay Help Support Immune Health*Non-GMO Lipid Coating240 Veggie CapsulesFormulated to Contain: No Gluten, No GMOs, No Soy100% Gold GuaranteeColostrum is recognized for its ability to support the immune system due to bioactive compounds such as naturally occurring Immunoglobulins (G1 & G2) and Proline-Rich Polypeptides (PRPs).*California Gold Nutrition Colostrum is collected within the first 12 hours when the milk has significantly higher levels of Immunoglobulins and Proline-Rich-Polypeptides. This Colostrum is from USDA Grade A Diary cows raised in the USA and contains no rBST and no Antibiotics. The Colostrum is low heat processed, concentrated, standardized to 15%** PRPs and 20%** IgG and combined with Non-GMO Sunflower Lecithin for stability.iHerb Blog Post: Colostrum: A Top Immune Booster** The standardized Colostrum fraction percentage claims (20% IgG & 15% PRP) are conservative averages, based on years of analytical results provided by our supplier. These levels may vary slightly from batch to batch, as Colostrum is a naturally-derived ingredient.iTested Verified