Buyer's guide

Best colostrum powder: how to choose, without the hype.

There's no single "best" colostrum for everyone. This guide gives you an objective scoring framework so you can judge any product, including ours, on sourcing, IgG transparency, testing, and real cost per serving.

EVIGLO grass-fed bovine colostrum powder, 2,300 mg at 25% IgG
Transparency disclosure: EVIGLO publishes this guide and sells a colostrum powder. So we won't pretend to be a neutral referee or crown ourselves "best." Instead, this page lays out the criteria a good colostrum supplement should meet, shows you how to score any product against them, and points you to each brand's official information to verify the details. Where EVIGLO genuinely fits a criterion, we say so and label it as our own product. Always confirm current specs on each brand's site before buying.

Quick answer

What is the best colostrum powder?

The best colostrum powder is the one that is transparent about what's inside and fits your routine and budget. In practice that means a product that states its bovine colostrum source (grass-fed is a common preference), discloses its immunoglobulin (IgG) percentage and milligrams per serving, is third-party tested with a certificate of analysis you can actually see, keeps the ingredient list simple, and has a cost per serving you can sustain day after day.

Because we sell colostrum, we won't hand you a ranking with ourselves on top. The honest answer is that "best" depends on which of those criteria matter most to you. Use the scoring framework below to weigh them, then compare the specific products you're considering, EVIGLO included, against their official labels and testing pages.

The framework

How to score a colostrum powder

Here's a simple 100-point rubric. We're publishing the criteria and weights, not scores for each product, for two reasons: we sell a colostrum powder and won't grade our own homework, and we don't have verified data for every competitor. Adjust the weights to match your priorities, then score each product yourself from its official label and testing page.

CriterionSuggested weightWhat a strong product looks like
Sourcing transparency15States the animal source, country of origin, and feeding (e.g. grass-fed). No vague "premium" language.
IgG transparency20Discloses IgG percentage and milligrams of immunoglobulins per serving on the label, not just total colostrum.
Third-party testing / COA access20Independent lab testing, ideally with a current certificate of analysis you can view before buying.
Processing method10Clear about how it's processed and that manufacturing is cGMP-certified.
Ingredient simplicity10Minimal additives. Fewer fillers, gums, sweeteners, and flavors is generally preferable.
Serving size & cost per serving10A clear serving size and a sustainable cost per serving after shipping and discounts.
Customer reviews5Real, verifiable reviews. Be wary of suspiciously uniform five-star walls.
Format options5Offers the format you'll actually use (powder, capsules, sticks) and pack sizes that fit your routine.
Shipping / subscription convenience5Reasonable shipping and a flexible subscription you can pause or cancel easily.

Total: 100 points. IgG transparency and third-party testing carry the most weight because they're the hardest things to fake and the easiest to verify.

Side by side

Colostrum powder comparison

EVIGLO's column comes straight from our product page. The other brands are marked "verify before publishing" because we don't reproduce another company's specifications from memory. Fill these in from each brand's official site before relying on the table.

Feature EVIGLO ARMRA WonderCow Cowboy Colostrum
Product formatPowder (30, 60 & 90-day options)VerifyVerifyVerify
Serving size2,300 mg per scoop; 30 servings/containerVerifyVerifyVerify
IgG transparency25% IgG; 575 mg immunoglobulins/serving, on labelVerifyVerifyVerify
Third-party testing / COA3rd-party tested; cGMP US facility. Public COA link: verifyVerifyVerifyVerify
Sourcing100% grass-fed; Non-GMO; gluten-free; made in USAVerifyVerifyVerify
IngredientsSingle ingredient: bovine colostrum. No fillersVerifyVerifyVerify
Price / cost per serving$49.99 (~$1.67/serving); 90-day ~$1.28/servingVerifyVerifyVerify
SubscriptionYes. Save 15% (~$1.42/serving); pause anytimeVerifyVerifyVerify
Format optionsPowder onlyVerifyVerifyVerify

Scroll the table sideways on mobile. Every "Verify" cell must be confirmed against the brand's official source before publishing.

The full guide

What makes a good colostrum supplement

Bovine colostrum is the first milk a cow produces after calving. It's a whole-food dairy ingredient that naturally contains immunoglobulins (notably IgG), lactoferrin, and growth factors. People take it as part of gut and immune wellness routines. Those are compositional facts about colostrum, not promises about what it will do for you, and a trustworthy product talks about it in that grounded way rather than reaching for cure-all language.

A good colostrum supplement does a few unglamorous things well. It tells you where the colostrum comes from and how the cows were fed. It states how much actual colostrum is in a serving and, ideally, the IgG percentage, so you know the active content rather than just the total weight. It backs that up with independent testing. And it keeps the formula honest: colostrum, and not much else. The brands worth your money tend to be the ones that make verification easy.

Powder vs capsules

Both formats deliver the same ingredient; the difference is dose, cost, and convenience. Powders generally let you take a larger, adjustable dose per day and often cost less per gram of colostrum, since you're not paying for capsule shells or the extra manufacturing step. The trade-off is that you have to mix them, and a small number of products add flavors or sweeteners to make that easier.

Capsules win on portability and precision. They're easy to travel with, there's no taste to manage, and the dose is fixed. The downsides are a typically higher cost per gram and the need to swallow several capsules to match a single powder scoop. If you want a high daily intake at the lowest cost, powder usually makes more sense. If you prioritize convenience and a no-taste routine, capsules can be worth the premium. Neither is universally "better"; it depends on how you'll actually use it.

EVIGLO single-ingredient colostrum label showing 2,300 mg bovine colostrum at 25% IgG
A simple label tells you the source, the dose, and the IgG content without burying it in marketing.

Which quality markers matter

If you only check a few things, check these. First, IgG transparency. IgG is the headline bioactive in colostrum, and a brand that states its IgG percentage and milligrams per serving is giving you the single most useful number for comparing value. A label that lists only "colostrum 3,000 mg" without an IgG figure is harder to evaluate. Second, third-party testing and a certificate of analysis (COA). Independent lab testing means someone other than the manufacturer checked the product, and a publicly available COA for the current batch is the strongest transparency signal a brand can offer. Third, sourcing and manufacturing: grass-fed sourcing is a common preference, and cGMP certification (current Good Manufacturing Practices, the FDA's baseline facility standards) tells you the product is made under quality controls. Fourth, ingredient simplicity. The fewer fillers, gums, and flavors, the closer you are to paying for colostrum itself.

What claims to be skeptical of

Healthy skepticism protects both your wallet and your expectations. Be wary of any colostrum product that claims to treat, cure, or prevent a disease; in the United States, dietary supplements are not allowed to make those claims, and a brand that does is either careless or pushing past the rules. Be cautious with "clinically proven" language that isn't tied to a citation you can read, with dramatic before-and-after imagery, and with "miracle," "detox," or guaranteed-result framing. Watch for proprietary blends that hide the actual dose of each ingredient, and for IgG claims with no testing to back them. None of this means colostrum can't be a worthwhile addition to a routine; it means the loudest marketing is rarely the best guide to quality.

A quiet label that states its numbers and links its testing usually beats a loud one that promises a transformation.

How to read a colostrum label

Start with the supplement facts panel, not the front of the package. Find the serving size and the total colostrum per serving, then look for the IgG percentage or the milligrams of immunoglobulins. Multiply through if you need to: a product can list a big total colostrum number while delivering less active content than a smaller, higher-IgG serving. Next, read the "other ingredients" line. Pure colostrum products list little or nothing else; longer lists mean flavors, sweeteners, or anti-caking agents, which isn't disqualifying but is worth a conscious choice. Then look for sourcing language (grass-fed, country of origin) and a testing or COA link. Finally, do the math on cost per serving after shipping and any subscription discount, because that, not the sticker price, is what you'll actually pay over time.

How EVIGLO fits the criteria

In the spirit of the disclosure at the top, here is how EVIGLO measures up against the rubric, using only what we publish about our own product. EVIGLO Colostrum Powder is a single ingredient: grass-fed bovine colostrum standardized to 25% IgG, at 2,300 mg per scoop, delivering 575 mg of immunoglobulins per serving, with no fillers or artificial additives. It's non-GMO and gluten-free, made in the USA in a cGMP-certified facility, and third-party tested. Pricing is $49.99 for a 30-serving container (about $1.67 per serving), dropping to roughly $1.28 per serving on the 90-day pack, with a Subscribe & Save option at about $1.42 per serving that you can pause or cancel anytime. US shipping is free, and there's a 30-day money-back guarantee.

On the rubric, that's strong on IgG transparency, ingredient simplicity, and sourcing, and reasonable on cost and convenience. The one box we ask you to verify rather than take on faith is COA access: look for a current certificate of analysis on the product page and confirm it before treating "third-party tested" as fully documented. EVIGLO offers only a powder, so if you specifically want capsules, it isn't your match. We're laying this out so you can score it the same way you'd score any competitor, not because we're claiming a verdict.

How to take EVIGLO colostrum: mix one scoop into water, coffee, or a smoothie
One scoop a day, mixed into water, coffee, or a smoothie.

Who should avoid colostrum or ask a professional first

Colostrum is a dairy product, so anyone with a milk or dairy allergy should avoid it, and people who are sensitive to lactose may not tolerate it well. If you're pregnant or nursing, managing a health condition, taking prescription medication, immunocompromised, or considering colostrum for a child or infant, talk with a qualified healthcare professional before starting. Supplements aren't a substitute for medical care, and individual circumstances vary more than any guide can account for. This page is educational and isn't medical advice.

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.

Buyer decisions

Picking by priority

Honest verdicts only. Where naming a winner would require head-to-head data we don't have verified, the category is marked "requires verification." Where EVIGLO genuinely fits, it's labeled as the publisher's product so you can weigh that for yourself.

Requires verification

Best overall

There's no honest single winner without verified, side-by-side data for every product. "Best overall" is whichever option scores highest on your weighting of the rubric above. Verify ARMRA, WonderCow, and Cowboy Colostrum specs before deciding.

Publisher's product

Best powder for transparency

If your top priority is a label-stated IgG figure and a simple, single-ingredient formula, EVIGLO is a strong powder option on those specific criteria (it's our product). Confirm competitors' IgG disclosure before finalizing.

Requires verification

Best capsules

EVIGLO doesn't make a capsule, and we have no verified capsule data for the other brands, so we won't name one. If capsules are a must, compare verified capsule options directly.

Publisher's product

Best for a simple daily routine

A single daily scoop, free US shipping, and a pause-anytime subscription make EVIGLO a low-friction routine (our product). Compare against competitors' subscription terms before choosing.

Publisher's product

Best for testing transparency

EVIGLO states 3rd-party testing and a cGMP facility and prints its IgG on the label (our product). Treat this as fully documented only once you've confirmed a current public COA. Verify competitors' testing too.

Requires verification

Best value per serving

EVIGLO's cost per serving is about $1.28 to $1.67 depending on pack and subscription. Whether that's the best value depends on competitors' current cost per serving after shipping, which needs verification.

Score it for yourself

Use the rubric on any product you're considering. If EVIGLO's transparent, single-ingredient approach fits your priorities, take a closer look, or see what your skin might be telling you.

Buyer questions

Colostrum powder FAQs

What is the best colostrum powder?
The one that's transparent about sourcing, states its IgG content, is third-party tested with a visible COA, keeps ingredients simple, and has a cost per serving you can sustain. Since EVIGLO sells colostrum, we won't crown ourselves. Use the rubric on this page to decide what's best for you.
Is colostrum powder or capsules better?
Neither is universally better. Powder usually offers a larger, adjustable dose at a lower cost per gram but has to be mixed. Capsules are more portable and taste-free but tend to cost more per gram. Pick the format you'll actually take consistently.
What IgG percentage should I look for?
IgG is the key bioactive, so a product that discloses its IgG percentage and milligrams per serving is easier to evaluate than one that doesn't. EVIGLO states 25% IgG (575 mg immunoglobulins per 2,300 mg serving). Compare like-for-like by IgG, not just total colostrum weight.
How do I know a colostrum is third-party tested?
Look for an explicit third-party testing statement and, ideally, a current certificate of analysis (COA) you can view before buying. cGMP certification of the manufacturing facility is another quality signal. If you can't find any testing information, ask the brand directly.
Is grass-fed colostrum better?
"Grass-fed" describes the cows' diet and is a common buyer preference, but it's a sourcing descriptor, not a health claim. Many people prefer it; whether it matters to you is a personal call. EVIGLO states 100% grass-fed.
How much does colostrum powder cost?
It varies by brand and pack size. EVIGLO runs about $1.28 to $1.67 per serving depending on pack and subscription, with free US shipping. Compare on cost per serving after shipping and any discount, since that's what you actually pay over time.
How much colostrum should I take per day?
Follow the serving size on the label of the product you choose, and ask a healthcare professional if you're unsure what's appropriate for you. Serving sizes differ between brands, which is one more reason to read the label rather than assume.
Who should not take colostrum?
Anyone with a milk or dairy allergy should avoid it, and lactose-sensitive people may not tolerate it well. If you're pregnant or nursing, immunocompromised, on medication, managing a health condition, or considering it for a child, talk to a qualified professional first.
Does EVIGLO make the best colostrum powder?
We're not going to claim that, because we sell it and that wouldn't be a fair judgment to make about ourselves. EVIGLO scores well on transparency, sourcing, and ingredient simplicity using its own published facts. Run it through the rubric alongside other brands and decide for yourself.
Is colostrum safe?
For most healthy adults without a dairy allergy, colostrum is generally well tolerated, but everyone is different. This guide is educational and not medical advice; consult a healthcare professional about your own situation before starting any new supplement.

Keep exploring

Helpful links

EVIGLO sells colostrum products and publishes this guide. Brand names mentioned (ARMRA, WonderCow, Cowboy Colostrum) are trademarks of their respective owners, used here for identification and comparison only, with no affiliation or endorsement implied. Specifications and pricing change over time; verify current details on each brand's official website before purchasing. 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.