Colostrum & organ supplements
Bovine colostrum and freeze-dried organ supplements, judged on sourcing, testing and honest dosing.
What we look for
We look for
- Named sourcing: the country and farms, with grass-fed or pasture-raised claims backed by a certification or audit.
- Tested by lot: heavy metals and pathogens (and PFAS for liver and organ products), with a certificate of analysis on request.
- Amounts per serving: each organ in milligrams, and vitamin A stated for anything with liver.
- Gentle processing: freeze-dried or low-heat dried, with the method stated. For colostrum, first-milking collection and IgG per serving on the label.
- A plain label: no proprietary blends, and any filler or capsule material named.
We avoid
- Liver products that do not state vitamin A, which can exceed safe limits, especially in pregnancy.
- Colostrum or organ “blends” with no amount per ingredient.
- Colostrum sold as a processed concentrate while citing trials of whole colostrum.
- Immune, gut-healing or hormone claims that go beyond the human trials.
Read the research
Know one that fits? Suggest a product
5 products · best rated first
-
Perfect SupplementsPerfect Desiccated Liver Capsules
One-ingredient Argentine liver capsules that state vitamin A (969 IU per 3 g), post lot-by-lot microbial reports and sit on the Detox Project glyphosate list. Heavy metals are only sampled, and no PFAS results are posted. Glyphosate Residue Free (The Detox Project) -
California Gold NutritionCalifornia Gold Nutrition Colostrum Powder
A plain colostrum powder that states 200 mg of IgG in each 1 g scoop, first-12-hour collection and low heat, for about $0.13 a scoop. Testing is the maker’s word only, and 20% IgG is below the 25 to 30% our guide cites. -
EnviromedicaEnviromedica Pastured Organ Complex
Five organs at 600 mg each from New Zealand cattle, freeze-dried. Testing is described, not shown, and there is no vitamin A figure; liver products can be high in vitamin A, especially in pregnancy. -
SurthrivalSurthrival Colostrum Powder
A single-ingredient, never-defatted colostrum powder that states 540 mg of IgG in each 3 g serving (18%). Its pages show no testing, no collection window and no grass-fed claim. -
Symbiotics (Naturade)Symbiotics Colostrum Plus Capsules
Colostrum capsules that guarantee 25% IgG (235 mg in 945 mg) from first-milking cows at USDA Grade A dairies, with a short label. Lab testing is the maker’s word only, and its own site showed every size sold out.