Colostrum is having its moment. It's on your feed, it's in your group chats, and at least one celebrity swears it changed her skin, her gut and her life.
Here's what the ads skip: the four most-talked-about colostrum products are wildly different products at wildly different prices — and two of them won't tell you how much colostrum is in a serving.
So we did what we always do. We pulled the labels, checked the prices on July 12, 2026, and put every claim side by side. Ten minutes here could save you $60 a jar — or stop you from buying a collagen powder that's wearing a colostrum costume.
All four, side by side
Every figure below comes from the brands' own product pages, checked July 12, 2026. "Not stated" means exactly that — we could not find the number on the product page.
| Earth Energy | ARMRA | WonderCow | Bloom | |
|---|---|---|---|---|
| Price | $59.95 | $119.99 | $64.99 | $29.99 |
| Servings | 30 | 120 | 60 | 25 |
| Cost per serving | $2.00 ($1.60 sub) | $1.00 | $1.08 | $1.20 |
| Colostrum per serving | 2,000 mg — stated | Not stated on page | Not stated on page | 1,000 mg (plus 3.7 g collagen) |
| IgG claim | Not stated | Not stated | 40% IgG (listing) | Not stated (this product) |
| Testing claim | Third-party, ISO/IEC 17025 — heavy metals, microbial, contaminants | Third-party, FDA-registered ISO/IEC-certified labs | GMP-certified facilities | "Third-party tested" (unspecified) |
| Sourcing claims | Grass-fed, pasture-raised Grade A US, calf-first | Grass-fed, US family farms, calf-first, glyphosate-free | USDA Grade A, 7th-gen family farm, collected within 24h | US family dairy farms |
| What it actually is | Pure colostrum | Colostrum concentrate (proprietary processing) | Whole colostrum, not skimmed | Mostly collagen (3.7 g) + 1 g colostrum + probiotic |
A "win" cell marks the best disclosed figure in that row, not an overall verdict. Full scored reviews of each product are in progress.
The rest of the field, honestly
ARMRA Colostrum (Unflavored Jar)
ARMRA built the colostrum category and it shows: proprietary "Cold-Chain BioPotent" processing, calf-first grass-fed sourcing, glyphosate-free claims, and third-party testing at FDA-registered, ISO/IEC-certified labs. The 120-serving jar makes its $1.00 per serving the lowest sticker math here. The catch that stops us cold: the product page doesn't state how much colostrum is in a serving — so you can't compare its dose, or its real cost per gram, with anything else on this page.
WonderCow Colostrum Powder
WonderCow's pitch is the opposite of high-tech processing: whole colostrum from a 7th-generation family farm, not skimmed or homogenized, collected within 24 hours from USDA Grade A dairies — and it's the only product here with an IgG percentage (40%) in its listing. What's missing is the other half of the math: the product page doesn't state the serving weight in grams, so "40% IgG" can't be converted into an actual IgG dose. Manufacturing is GMP-certified, but no independent testing standard is named.
Bloom Nutrition Colostrum & Collagen Peptides
Bloom's $29.99 price tag is the gateway drug of this category — but look at what's in the scoop. Each 4.7 g serving is 3.7 g bovine collagen and just 1 g of colostrum (plus a probiotic). That's a perfectly legitimate collagen product with a colostrum accent — credit to Bloom for disclosing both numbers, which is more than half this list manages. Per gram of actual colostrum, you're paying $1.20 — more than our pick's $1.00, from a "third-party tested" claim with no named standard.
How we picked — and what we couldn't verify
This comparison ranks what the brands disclose, because disclosure is the only thing a shopper can verify before buying. We weighted three questions: does the label state the colostrum dose? Is the testing claim tied to a named, checkable standard? What does a disclosed gram of colostrum actually cost? Prices and label claims were pulled from each brand's own product page on July 12, 2026. None of the four states every number we'd want — including our own pick, which does not publish an IgG percentage. Full scored reviews of all four products, under our 100-point methodology, are in progress; this page will link each one as it publishes and is re-checked monthly.
Frequently asked questions
What should I look for on a colostrum label?
Three things: the disclosed amount of colostrum per serving (in mg or g), a stated IgG percentage or amount, and a named, verifiable testing standard or program — not just the words "third-party tested." Of the four products we compared in July 2026, only two disclosed a colostrum amount per serving.
Is the most expensive colostrum the best?
Price and quality are not the same thing in this category. In our July 2026 comparison, the $119.99 option did not state its serving weight on its product page, while lower-priced options disclosed exact amounts. Compare cost per disclosed gram of colostrum, not sticker price.
What does IgG mean on a colostrum label?
IgG (immunoglobulin G) is the antibody colostrum is best known for, and brands use its percentage as a shorthand for potency. A stated IgG percentage lets you compare products directly; "naturally high in IgG" without a number does not. Research on IgG has examined specific intakes — a percentage without a serving weight still doesn't tell you the actual dose.
Is bovine colostrum safe?
Bovine colostrum is a dairy product and contains milk allergens, so people with dairy allergies should avoid it. Beyond that, individual needs vary — if you are pregnant, nursing, immunocompromised or considering colostrum for a health condition, talk with your healthcare provider first.
The Label Brief — free weekly report
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Get The Label Brief free →Sources
- Earth Energy Supplements — Pure Bovine Colostrum product page (price, serving, testing, sourcing). Checked July 12, 2026. earthenergysupplementstore.com/products/colostrum
- ARMRA — Colostrum Unflavored Jar product page (price, servings, processing, testing, sourcing). Checked July 12, 2026. armra.com/products/armra-unflavored-jar
- WonderCow — Colostrum Powder product page and listing (price, servings, IgG claim, sourcing). Checked July 12, 2026. wondercow.com/products/colostrum-powder
- Bloom Nutrition — Colostrum & Collagen Peptides (Target listing: price, serving composition). Checked July 12, 2026.
Update history
- July 12, 2026 — Comparison first published: Earth Energy, ARMRA, WonderCow, Bloom. All prices and label claims checked this date. Next check: August 2026.
Content is for informational purposes only and is not medical advice. Individual needs and results vary. Medical disclaimer.