How to choose a colostrum supplement comes down to the label. Look for the amount of colostrum and the amount of IgG per serving, each added ingredient with its own amount, a clear milk allergen line, a lot number, and proof that every batch is tested by an outside lab. Those checks tell you more than any "best colostrum supplement" list can. Below, we walk through each one and show how our Colostrum+™ powder answers them.
Key takeaways
- A good colostrum label gives two numbers per serving: the colostrum amount and the IgG amount.
- Bovine colostrum comes from cows, so a bovine colostrum powder is a dairy product and should carry a milk allergen statement.
- The FDA says it does not approve dietary supplements before they are marketed.
- Each scoop of Colostrum+ gives 2,000 mg of colostrum powder with 400 mg of IgG, plus 500 mg of marshmallow root and 50 mg of bovine lactoferrin.
- The Colostrum+ label says: "If you are pregnant, nursing, allergic, have a medical condition or taking any medications, consult a doctor before using this or any other dietary supplement."
What is bovine colostrum powder?
A 2021 review in Frontiers in Nutrition describes colostrum as the first milk that mammals produce after giving birth, and says it is different in makeup from mature milk. The same review lists proteins, fats, glycans, minerals and vitamins among the nutrients found in colostrum. A bovine colostrum powder is colostrum from cows, processed into a powder that you can stir into a drink.
Bovine colostrum comes from cows, so a bovine colostrum powder is a dairy product and should carry a milk allergen statement. Keep that in mind before you compare anything else. If you avoid milk, a colostrum supplement is not a fit for you.
How to choose a colostrum supplement: the label checklist
Hold the label next to this table. Each row is one thing to find, and the last column shows what the Colostrum+ label says, except the testing row, which comes from our standards page.
| Check | What to look for | Colostrum+ |
|---|---|---|
| Colostrum per serving | A number in mg per serving | 2,000 mg per 2.55 g scoop |
| IgG per serving | A number in mg per serving, listed with the colostrum | 400 mg (from colostrum powder) |
| Added ingredients | Each one named, with its own amount | Marshmallow root 500 mg; bovine lactoferrin 50 mg |
| Allergen line | "Contains: Milk" | Contains: Milk |
| Serving size and supply | Scoop size and servings per container | 1 scoop (2.55 g); 30 servings |
| Lot number and date | A lot number and an expiration date | Printed on the bottom |
| Testing | An outside lab, every batch | Third-party tested, every batch |
Colostrum and IgG: two numbers, not one
A good colostrum label gives two numbers per serving: the colostrum amount and the IgG amount. IgG stands for immunoglobulin G, a type of antibody. The colostrum amount tells you how much of the main ingredient is in a serving. The IgG amount tells you how much of that colostrum is IgG.
Some labels give IgG as a percentage instead of milligrams. You can work it out yourself: 20% IgG in 2,000 mg of colostrum is 400 mg. Watch for numbers that do not say what they measure. "Total protein" is not the same thing as IgG. If you want more background, our article on IgG in colostrum explains the term (linked below).
Added ingredients
Some colostrum powders contain colostrum only. Others add ingredients for a reason, and neither type is right for everyone. What matters is that each added ingredient is named and has its own amount, so you know what you are taking. Colostrum+ adds 500 mg of marshmallow root and 50 mg of bovine lactoferrin to each scoop, and every amount is printed on the label. The front of the container says "with marshmallow root for digestive comfort*".
Allergen and diet fit
The Colostrum+ label says "Contains: Milk." It is a bovine (cow) product, so it is not vegan or vegetarian. The label caution, quoted in full further down, tells anyone who is allergic to consult a doctor before use.
Sourcing words on the label
Words such as "grass-fed" describe the herd, not the powder in the scoop. If a sourcing word matters to you, look for it printed on the label, and ask the brand how it checks it. A sourcing word does not replace the colostrum and IgG numbers.
Lot number, date and outside testing
The FDA says it does not approve dietary supplements before they are marketed. That is why independent testing of each batch is worth looking for. A lot number ties the container in your hand to one batch, and a certificate of analysis (COA) shows what an outside lab found in a batch. Our guide to reading a COA shows what each line means.
Every batch of Colostrum+ is third-party tested for purity and potency by an outside lab. It is manufactured in USA with globally sourced materials, in an NSF-certified, GMP-certified, FDA-registered U.S. facility. The lot number and expiration date are printed on the bottom. You can read how we test on our standards page.
Powder or capsules: which form fits your routine?
Colostrum comes as powder or capsules. Here is how to compare them fairly:
- Compare per serving, not per capsule. Count how many capsules make one serving, then compare the colostrum and IgG numbers for that serving.
- Think about your day. A powder needs a drink to stir into. Capsules need no mixing.
- Check the serving size. A powder label gives the scoop size in grams; a capsule label gives the number of capsules.
Colostrum+ is a powder. The suggested use on the label is: "Adults, take one scoop (2.55 g) (included) daily with 8 ounces of water or your favorite hot or cold recipe!" One scoop stirs into water, coffee or a smoothie, and the 76.5 g container holds 30 servings, a 30-day supply at one scoop a day.
What does the research on bovine colostrum say?
The 2021 Frontiers in Nutrition review says clinical studies have looked at bovine colostrum for human health, and it also names gaps in what is known. A 2022 systematic review in Nutrients looked at nine studies of bovine colostrum and gut permeability in athletes. Its authors report that vigorous exercise increases intestinal permeability and that colostrum supplements may help gut permeability in athletes. They also say that well-designed, placebo-controlled, randomized studies are still needed to check long-term safety and effect and to work out the best dose schedule.
Of the nine studies in the 2022 review, five gave 20 g of bovine colostrum a day, one gave 60 g a day, one gave 1.7 g per kilogram of body weight a day, and two gave 500 mg twice a day (1 g a day). One scoop of Colostrum+ has 2,000 mg (2 g) of colostrum powder, more than the 1 g a day in two of the review's studies and less than in the other seven. So the research does not set a target dose for anyone, and the athlete studies may not apply to people who do not train hard. We describe Colostrum+ only by the benefits on its product page: healthy immune function, gut and digestive health, and cognitive wellness and focus.*
Meet Colostrum+
Each scoop of Colostrum+ gives 2,000 mg of colostrum powder with 400 mg of IgG, plus 500 mg of marshmallow root and 50 mg of bovine lactoferrin. A serving also has 10 calories, 1 g of protein, 29 mg of calcium and 0.36 mg of iron. The label lists no other ingredients. It is gluten-free, non-GMO and sugar-free.
Colostrum+ supports healthy immune function, gut and digestive health, and cognitive wellness and focus.* Here is the label warning, word for word: "If you are pregnant, nursing, allergic, have a medical condition or taking any medications, consult a doctor before using this or any other dietary supplement. Do not use if product has been opened or tampered with in any way. Keep out of reach of children. Do not use if safety seal is damaged or missing. Store in a cool, dry place." Contains: Milk.
You can see the full Supplement Facts on the Colostrum+ product page.
Frequently asked questions about choosing a colostrum supplement
What should I check first on a colostrum supplement label?
Start with the Supplement Facts panel. Find the colostrum amount and the IgG amount per serving, both in milligrams. Then check the allergen line, the lot number and whether every batch is tested by an outside lab.
How much IgG is in Colostrum+?
One 2.55 g scoop of Colostrum+ has 2,000 mg of colostrum powder, and the label lists 400 mg of IgG from that colostrum powder. The scoop also has 500 mg of marshmallow root and 50 mg of bovine lactoferrin.
Is colostrum dairy?
Yes. Bovine colostrum comes from cows, and the Colostrum+ label says "Contains: Milk." Colostrum+ is not vegan or vegetarian, and if you avoid milk, it is not a fit for you. If you are allergic, the label says to consult a doctor before use.
Is a powder or a capsule better?
Neither form is better for everyone. Compare the colostrum and IgG per serving, and pick the form that fits your day. Colostrum+ is a powder you stir into 8 ounces of water or a hot or cold recipe.
How do I take Colostrum+?
As the label directs, take one 2.55 g scoop a day, stirred into 8 ounces of water or a hot or cold recipe. The container holds 30 servings, so it lasts 30 days.
Related reading from our Wellness Hub
- What Is IgG in Colostrum? Immunoglobulins, Explained
- Bovine Colostrum Powder: How to Mix and Take Colostrum+
- How to Read a Supplement Certificate of Analysis (COA)
Sources
- Arslan A, et al. Bovine Colostrum and Its Potential for Human Health and Nutrition. Frontiers in Nutrition, 2021 (PubMed, U.S. National Library of Medicine)
- Dziewiecka H, et al. A Systematic Review of the Influence of Bovine Colostrum Supplementation on Leaky Gut Syndrome in Athletes: Diagnostic Biomarkers and Future Directions. Nutrients, 2022 (PubMed, U.S. National Library of Medicine)
- U.S. Food and Drug Administration: Questions and Answers on Dietary Supplements, content current as of August 27, 2026
Individual results vary.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
