The verdict, first
Earth Energy takes this on our rubric — 70/100 to Cowboy’s 55 — and since it’s our house brand, here’s exactly why. Earth Energy discloses not just its colostrum dose (2 g per serving) but its immunoglobulin (IgG) content — the active fraction most colostrum brands never quantify — and it costs about $1.00 a serving to Cowboy’s $1.73. On disclosure and price, it’s ahead, and 70/100 is the highest colostrum score in our set.
Cowboy’s genuine edge is a larger stated dose. Its 3 g per serving is more total colostrum than Earth Energy’s 2 g — so if raw grams are what you’re after, Cowboy gives you more of them. The counterpoint is that grams alone don’t tell you the IgG, which is what colostrum is really sold for, and Cowboy doesn’t quantify it. Because Earth Energy is under common ownership with this site, we score it on the identical rubric — and Cowboy’s bigger dose is noted plainly as the reason to prefer it if quantity is your priority.
The comparison table
| What we checked | Cowboy Colostrum | Earth Energy Pure Bovine Colostrum |
|---|---|---|
| Price | $69.00 / 40 servings | $59.95 / 60 servings (lower on subscription) |
| Cost per serving | $1.73 | $1.00 (less on sub) |
| Colostrum dose | 3 g stated | 2 g stated |
| IgG disclosed | Not quantified | Disclosed |
| Amounts disclosed | Dose stated, IgG not | Dose and IgG stated |
| Relationship to this site | None — no affiliate relationship | Common ownership — disclosed above |
| Our score | 55/100 — full review | 70/100 — full review |
| Facts checked | 2026-07 | 2026-07 |
Spot a change on either label? Tell us and we’ll re-verify on the record.
IgG is what colostrum is really about
Colostrum’s proposed benefits ride mostly on immunoglobulins — IgG above all. Earth Energy states both its dose (2 g) and its IgG content, so you can judge the active fraction, not just the total powder. Cowboy discloses a larger 3 g dose but doesn’t quantify IgG, so its bigger number is harder to evaluate — 3 g of colostrum with unknown IgG isn’t necessarily stronger than 2 g with a stated, meaningful IgG level. That disclosure is a big part of why Earth Energy reached 70/100, the top of our colostrum set.
We disclose that Earth Energy is a house brand under common ownership with this site and hold it to the same rubric as every rival — its own review documents its trade-offs.
The honest caveat: Cowboy’s dose is larger
Credit where due: Cowboy’s 3 g per serving is more total colostrum than Earth Energy’s 2 g. If you simply want the biggest stated colostrum dose and aren’t focused on the IgG figure, Cowboy delivers more grams. Earth Energy’s case is that it pairs a solid 2 g with a disclosed IgG and a lower price — quality and transparency of the dose over raw size. Both are legitimate priorities; the table lets you pick yours.
Which one fits you
Cowboy makes more sense if…
- You want the largest stated colostrum dose (3 g per serving)
- Total grams matter to you more than a quantified IgG figure
- You prefer a brand with no relationship to this site
Earth Energy makes more sense if…
- You want IgG disclosed, not just total grams — the active fraction, stated
- You’d rather pay about $1.00 a serving (less on subscription) than $1.73
- You’re comfortable with a house-brand product we’ve disclosed and scored openly (70/100)
Where to find them
Disclosure: The Ingredient Report and Earth Energy are independently operated companies under common ownership; every brand is scored with the same published methodology. The rival link is a plain Google search — no affiliate relationship, we earn nothing.
Frequently asked questions
Which scored higher, Cowboy or Earth Energy Colostrum?
Earth Energy, 70/100, versus Cowboy at 55 — on IgG disclosure and price. Earth Energy is our house brand and scored on the same rubric; ownership is disclosed on the page.
Which has the bigger dose?
Cowboy, with 3 g stated per serving versus Earth Energy’s 2 g. But Cowboy doesn’t quantify IgG, so its larger number is harder to evaluate for actual colostrum activity.
What is IgG and why does it matter?
IgG is the main immunoglobulin in colostrum — the active fraction its benefits are attributed to. Earth Energy discloses its IgG content; Cowboy discloses grams but not IgG.
Which is cheaper?
Earth Energy, at about $1.00 a serving (less on subscription) versus Cowboy’s $1.73.
Sources
- Cowboy Colostrum — product page and Supplement Facts (3 g colostrum per serving; 40 servings). Checked July 2026.
- Earth Energy Supplements — Pure Bovine Colostrum product page and Supplement Facts (2 g dose, disclosed IgG; pricing and subscription). Checked July 2026. earthenergysupplementstore.com/products/colostrum
- The Ingredient Report — Cowboy Colostrum review, 55/100 (facts checked July 2026).
- The Ingredient Report — Earth Energy Colostrum review, 70/100 (facts checked July 2026).
- 2026-07-19 — Page published. Both labels verified this date; ownership disclosed.
This comparison is for informational purposes and is not medical advice. Medical disclaimer.