Best Colostrum Supplements 2026: 5 Compared
Wondering which colostrum is actually worth the money? We compared five popular powders on dose, sourcing, testing, ingredients and price so you can see what separates the premium jars from the better-value options.
IMPORTANT: If you are shopping for bovine colostrum, you are in the right place. Serving sizes range from 1 gram to 3 grams, sourcing claims vary, and prices climb fast. We broke down the numbers that make those differences easier to judge.
Our top 5 at a glance
Earth Energy Colostrum ranked #1 in our comparison at 9.4/10 because it combines a clearly stated 2,000 mg serving, pasture-raised Grade A U.S. sourcing, 25% IgG and ISO/IEC 17025 third-party testing for $59.95 a jar. Cowboy delivers more grams per serving, while ARMRA has the stronger premium-brand story.
Same parent company as this siteEarth Energy is owned by LJ Global Inc., which also owns Healthy Expert Reviews. Details
- 1
Overall balanceEarth Energy Colostrum9.4/10, $59.95/jarSee Reader Price → - 2Premium brandARMRA Colostrum9.0
- 3Highest servingCowboy Colostrum8.9
- 4Farm sourcingWonderCow Colostrum8.7
- 5IgG valueDouble Wood Colostrum8.5
IMPORTANT: If you are shopping for bovine colostrum, you are in the right place. Serving sizes range from 1 gram to 3 grams, sourcing claims vary, and prices climb fast. We broke down the numbers that make those differences easier to judge.
Our top picks: Colostrum Supplements for 2026
| Feature | #1 pickEarth Energy |  ARMRA |  Cowboy |  WonderCow |  Double Wood |
|---|---|---|---|---|---|
| What to look for | |||||
| Colostrum serving | 2 g | 1 g | 3 g | 2 g | 2 g |
| IgG disclosed | 25% | ? | ? | 40% claim | 30% |
| Third-party tested | ISO 17025 | ✓ | ✓ | ✓ | ✓ |
| Single ingredient | ✓ unflavored | ✓ unflavored | ✓ unflavored | ✓ unflavored | ✓ |
| U.S. sourcing | Grade A U.S. | Made in USA | U.S. dairy cows | USDA Grade A farms | Globally sourced |
| Try to avoid | |||||
| No fillers | ✓ | ✓ | ✓ | ✓ | ✓ |
| No added sugar | ✓ unflavored | ✓ unflavored | ✓ unflavored | ✓ unflavored | ✓ |
| Key factors | |||||
| One-time price | $59.95 | $119.99* | $69 | $64.99 | $32.95 |
| Our score | 9.4/10 | 9.0/10 | 8.9/10 | 8.7/10 | 8.5/10 |
| Buy | See Reader Price → | Search on Google | Search on Google | Search on Google | Search on Google |
Product pages checked October 2026. ARMRA pricing shown from its current promotional landing page and may vary by size or offer.
What actually matters before you buy
- Grams per serving: Compare the actual colostrum amount, not just scoop size or jar size.
- Sourcing: Look for clear farm, grade, feeding and calf-first sourcing details.
- IgG disclosure: Standardized or disclosed immunoglobulin content makes formulas easier to compare.
- Third-party testing: Look for identity, contaminants and microbial testing from qualified outside labs.
- Cost per gram: A cheaper jar is not always cheaper once serving size is considered.
Key things to avoid
- Vague dosing: If the grams per serving are hard to find, value is harder to judge.
- Sourcing gaps: Premium pricing deserves clear information about where the colostrum comes from.
- Marketing-only proof: Proprietary terminology matters less than dose, sourcing and testing you can verify.
- Hot mixing: Follow each brand's directions because heat may affect naturally occurring bioactive compounds.
#1. Earth Energy Colostrum
Best for: Overall balance
Recommended for: Buyers who want clear dose and testing
What's inside:2,000 mg pasture-raised Grade A U.S. bovine colostrum per scoop, standardized to 25% IgG.
Format:Powder; unflavored or chocolate; no added sugar
- Transparency
- 9.7/10
- Sourcing
- 9.4/10
- Value
- 9.2/10
Price:$59.95 for 1 jar (60 servings); $119.90 for 3 (buy 2, get 1 free); $179.85 for 5 (buy 3, get 2 free)
No code needed: savings show on the next page
30-day first-purchase guarantee; batch COAs available
Pros
- 2,000 mg clearly stated per scoop
- Pasture-raised Grade A U.S. colostrum
- Standardized to 25% IgG
- ISO/IEC 17025 third-party testing
- Unflavored is one ingredient
- Multi-jar pricing lowers cost
Cons
- Contains milk
- Powder requires mixing
- Cowboy provides more grams per serving
Final thoughts
Earth Energy ranked first because it balances the things we think matter most in this category: a clearly stated 2 g serving, named U.S. sourcing, disclosed 25% IgG, batch testing and a price below several premium competitors. It is not the biggest serving in this list, and buyers who want first-day 3 g colostrum may prefer Cowboy. It is best for shoppers who want an easy-to-audit formula without paying mainly for branding.
See Today's Reader Price →From $35.97/jar · 30-day guarantee30-day first-purchase guarantee; batch COAs available
#2. ARMRA Colostrum
Recommended for: Buyers drawn to ARMRA's branded process
What's inside:1 g grass-fed bovine colostrum concentrate per serving with 400+ naturally occurring functional nutrients, according to ARMRA.
Format:Powder; unflavored and flavored options
- Transparency
- 8.5/10
- Sourcing
- 9.2/10
- Value
- 8.2/10
Price:Current promotional page shows options up to $119.99
Search ARMRA on Google7,000+ five-star reviews claimed on ARMRA promotional page
Pros
- Grass-fed bovine colostrum
- Single-ingredient unflavored option
- ISO-certified third-party contaminant testing
- Strong brand recognition
- Multiple formats and flavors
- HSA/FSA eligibility via Truemed
Cons
- 1 g standard serving
- Premium pricing
- Branded process complicates direct comparison
Our take
ARMRA is the strongest premium-brand option here. Its grass-fed sourcing, single-ingredient unflavored formula, outside testing and proprietary Cold-Chain BioPotent process will appeal to buyers who value the brand's technology story. The trade-off is price and a smaller 1 g standard serving. We rank it below Earth Energy because Earth Energy gives you twice the stated colostrum per scoop with more straightforward dose and IgG disclosure at a lower jar price.
#3. Cowboy Colostrum
Recommended for: Buyers prioritizing first-day whole colostrum
What's inside:3 g whole first-day bovine colostrum per serving from U.S. grass-fed dairy cows.
Format:Powder; multiple flavors; unflavored available
- Transparency
- 9.0/10
- Sourcing
- 9.6/10
- Value
- 8.7/10
Price:$69 one-time; $59.25 introductory subscription
Search Cowboy on Google5,000+ five-star reviews claimed on brand site
Pros
- 3 g colostrum per serving
- First-day milking
- U.S. grass-fed dairy cows
- Calves fed first
- Third-party tested
- Multiple flavor options
Cons
- IgG percentage not prominently disclosed
- Higher one-time price than Earth Energy
- Powder requires mixing
Our take
Cowboy has one of the strongest sourcing stories in the group and the largest standard serving at 3 g. First-day milking, grass-fed U.S. cows, calf-first sourcing and outside testing give buyers plenty to like. Its main trade-off is that the IgG concentration is less explicit than Earth Energy's 25% disclosure. It ranks third because Earth Energy offers a more complete balance of disclosed potency, testing and price.
#4. WonderCow Colostrum
Recommended for: Buyers who value farmer-led sourcing
What's inside:Pure whole colostrum sourced from licensed USDA Grade A dairy farms, with 60 servings per jar.
Format:Powder; unflavored and flavored options
- Transparency
- 8.5/10
- Sourcing
- 9.3/10
- Value
- 8.6/10
Price:$64.99 one-time; $55.24 subscription
Search WonderCow on Google822+ brand-site reviews; 30-day refund policy
Pros
- Whole colostrum
- USDA Grade A dairy sourcing
- Farmer-founded brand
- Ethically sourced after calves feed
- Certified GMP production
- 60 servings per jar
Cons
- Lab accreditation less prominent
- Higher price than Double Wood
- Powder requires mixing
Our take
WonderCow is a credible option for shoppers who care about the farm story. It highlights USDA Grade A dairy sourcing, calf-first practices, whole colostrum and farmer ownership, and the 60-serving jar is competitively priced. WonderCow also advertises a 40% IgG claim, higher than Earth Energy's 25%. We put it below Earth Energy by a narrow margin because Earth Energy names its ISO/IEC 17025 lab standard, publishes batch COAs and costs slightly less per jar.
#5. Double Wood Colostrum Powder
Recommended for: Budget buyers who want standardized IgG
What's inside:2 g bovine colostrum per serving standardized to 30% total immunoglobulins and 60% protein.
Format:Unflavored powder; non-GMO and gluten-free
- Transparency
- 9.2/10
- Sourcing
- 7.8/10
- Value
- 9.5/10
Price:$32.95 current direct price
Search Double Wood on Google4.0/5 from 2 product-page reviews
Pros
- 2 g serving
- Standardized to 30% immunoglobulins
- 60% protein
- Third-party tested
- COA and test results published
- Lowest current jar price here
Cons
- Globally sourced ingredients
- Fewer product-page reviews
- Less detailed farm sourcing
Our take
Double Wood is the value sleeper in this comparison. It clearly states a 2 g serving, 30% immunoglobulins, 60% protein and publishes testing information at a much lower price than the premium brands. Buyers who care most about standardized IgG per dollar should look closely. It ranks fifth because its farm and sourcing story is less detailed than the leaders, not because the formula lacks value.
Questions people ask
What should I look for in a bovine colostrum supplement?
Start with grams of colostrum per serving, then look at sourcing, whether immunoglobulin content is disclosed, third-party testing and cost per gram. Those details make products easier to compare than marketing claims alone. Also check allergens because bovine colostrum is dairy-derived and contains milk.
Is more colostrum per serving always better?
Not automatically. Serving size is useful, but it is only one part of the comparison. A 3 g serving may appeal to someone prioritizing dose, while another buyer may care more about IgG standardization, sourcing, testing or price. There is no single universally established daily dose for every use.
Why is Earth Energy ranked first if you own it?
We disclose that ownership on every page. Every product is scored on the same published criteria, and we show the label details and prices we compared so you can check our work.
How does Earth Energy compare with ARMRA?
Earth Energy lists 2 g of colostrum per scoop and 25% IgG, while ARMRA's standard serving is 1 g and emphasizes its proprietary concentration process. ARMRA has stronger brand recognition; Earth Energy ranked higher here because its dose, IgG, testing and price are easier to compare directly.
Does bovine colostrum contain dairy?
Yes. Bovine colostrum is a milk-derived product. People with a milk allergy should not use it. If you are pregnant, nursing, giving it to a child, taking medication or managing a medical condition, ask a qualified healthcare professional before adding a colostrum supplement.
Sources
- Earth Energy Supplements. "How to Choose a Bovine Colostrum Powder." https://www.earthenergysupplementstore.com/pages/colostrum-buyers-guide
- Earth Energy Supplements. "Pure Bovine Colostrum." https://www.earthenergysupplementstore.com/products/colostrum
- ARMRA Help Center. "Why is the serving size of ARMRA Colostrum only 1 gram?" https://help.tryarmra.com/en-US/why-is-the-serving-size-of-armra-colostrum-only-1-gram-ive-seen-other-products-with-a-much-larger-serving-size-256371
- ARMRA. "ARMRA Colostrum." https://buy.tryarmra.com/5-reasons/
- Cowboy Colostrum. "Unflavored Colostrum." https://cowboycolostrum.com/products/natures-gold-unflavored-colostrum
- WonderCow. "Colostrum Powder." https://wondercow.com/collections/shop-all/products/colostrum-powder
- Double Wood Supplements. "Colostrum Powder." https://doublewoodsupplements.com/products/colustrum-powder
Ownership & advertiser disclosure: Healthy Expert Reviews is owned and operated by LJ Global Inc. LJ Global Inc. also owns Earth Energy Supplements, which makes our #1 pick. We may also earn a commission when you buy other products through links on this page. Rankings follow our published scoring criteria.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before starting a supplement, especially if you are pregnant, nursing, or take medication.