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How to buy colostrum: the buyer’s guide
Buy by grams and stated IgG, not by servings or flavor.
- Plain powder: one ingredient
- Look for: IgG % or mg per serving
- Typical price: $0.18–$0.98 per gram
Colostrum labels are built to be hard to compare. This guide gives you five checks, the math, and a live table of nine popular powders.
1. Format: powder, capsules or flavored blends
Powder is the cheapest way to buy colostrum by the gram. Capsules hold roughly 0.5 g each, so a 2 g serving means four capsules. Flavored blends add sweeteners and flavors — you pay colostrum prices for them.
2. Grams, not servings
Serving sizes in our table run from 1 g (ARMRA, Codeage) to 5 g (Sovereign Laboratories). Always divide the price by net weight.
3. Stated IgG
IgG is the most-studied component of bovine colostrum and the one brands advertise. When a label gives IgG only in mg per serving, convert it with the calculator.
4. Sourcing and processing claims
“Grass-fed”, “first milking” and “low-heat” are marketing claims unless a document backs them. Ask for a certificate of analysis for your lot number.
5. Where to buy
Amazon usually matches brand-site prices; brand sites sometimes run bundles. Check the seller is the brand (or Amazon) to avoid third-party resellers with old stock.
The table
| Brand | Container | Price | Serving | IgG | $ / g | $ / g IgG |
|---|---|---|---|---|---|---|
| Nutricost Nutricost Colostrum 30% Powder, 8 oz | 227 g | $39.95 | 3 g | 30% | $0.18 | $0.59 |
| BIOMIXA (our brand) Bluegrass Colostrum (6-hour, unflavored powder) | 120 g | $79.99 | 2 g | 25% | $0.67 | $2.67 |
| FOLQS Folqs Bovine Colostrum Powder, First Day Milking, 60 servings | 120 g | $79.99 | 2 g | 21% | $0.67 | $3.17 |
| NOW Foods NOW Colostrum Powder, 3 oz | 85 g | $20.54 | 2.47 g | not stated | $0.24 | — |
| Sovereign Laboratories Colostrum-LD Powder, Plain, 16 oz | 453 g | $163.00 | 5 g | not stated | $0.36 | — |
| Codeage Codeage Bovine Colostrum Powder, 4.3 oz | 122 g | $53.00 | 1 g | not stated | $0.43 | — |
| WonderCow WonderCow Whole Colostrum Powder, Unflavored, 60 servings | 120 g | $64.99 | 2 g | not stated | $0.54 | — |
| Cowboy Colostrum Nature's Gold Unflavored Colostrum, 40 servings | 119 g | $69.00 | 3 g | not stated | $0.58 | — |
| ARMRA ARMRA Colostrum, Unflavored, 120-serving jar | 122 g | $119.99 | 1 g | not stated | $0.98 | — |
Who should not buy colostrum
Anyone with a cow’s milk allergy. If you are pregnant, take medication or manage a chronic condition, ask your clinician first.
The colostrum we make
We make BIOMIXA Bluegrass Colostrum: a single-ingredient, unflavored, grass-fed powder (brand claim: at least 25% IgG, 120 g jar). It is our own product, so weigh that when you read our pages. See it at biomixa.com.
Other product links on this site are Amazon affiliate links; we earn a commission at no extra cost to you.
For general information only, not medical advice. Statements have not been evaluated by the FDA. Colostrum supplements are not intended to diagnose, treat, cure, or prevent any disease. Talk to a healthcare provider before starting a supplement, especially if you have a dairy allergy.