Last updated: October 22, 2026. Information checked at the time of writing.
Short answer: none of the three states an IgG percentage. Heart & Soil’s capsule label lists 13.05 mg of IgG per 3 g serving. Per gram, Cowboy is the cheapest (about $0.58), Heart & Soil sits in the middle ($0.66 to $0.76) and ARMRA costs the most (about $1.00), all in US dollars before shipping and duties.
We make a competing product, so every fact about other brands below comes from their own store, label or policy pages, checked on October 22, 2026. Prices are in US dollars unless marked and change often.
Side by side
| Size and serving | IgG stated | Price (USD) | Origin | Canada | |
|---|---|---|---|---|---|
| Heart & Soil Grass-Fed Colostrum | 180 capsules (3 g a day) or 180 g powder | 13.05 mg IgG per 3 g on the capsule label; no % | $68 capsules, $119 powder (about $0.66 to $0.76 per gram) | Grass-fed cattle; country not named on the colostrum page | Ships, duties included, final sale |
| ARMRA Colostrum Unflavored | 120 g, 1 g scoop, brand suggests 4 or more scoops | Not stated | $119.99 (about $1.00 per gram) | US family dairy farms | Ships; buyer pays duties |
| Cowboy Colostrum Unflavored | 120 g, 3 g scoop | Not stated | $69 (about $0.58 per gram) | US grass-fed dairy | Ships; cost shown at checkout |
| Rise Bovine Colostrum | 120 g, 1 to 2 teaspoons a day | 40% IgG stated | $49.99 CAD (about $0.42 CAD per gram) | Grass-fed Canadian cattle, made in Canada | Ships within Canada, no duties |
What to weigh
- Compare per gram, not per scoop: scoop sizes run from 1 g (ARMRA) to 3 g (Cowboy, Heart & Soil).
- IgG on the label: only a stated IgG figure lets you compare potency. See colostrum price per gram of IgG.
- Processing: Heart & Soil and Cowboy say spray-dried; ARMRA names a proprietary pasteurization process and no drying method.
More: ARMRA vs Cowboy vs Rise, Cowboy Colostrum in Canada and the best colostrum supplement in Canada.
FAQ
Which colostrum has the most IgG?
Heart & Soil, ARMRA and Cowboy do not state an IgG percentage. Heart & Soil’s capsule label lists 13.05 mg of IgG per 3 g serving. Rise states 40% IgG.
Is ARMRA cheaper than Cowboy Colostrum?
No. Per gram ARMRA is about $1.00 and Cowboy about $0.58 in US dollars, before shipping.
Does Heart & Soil colostrum ship to Canada?
Yes, with duties and taxes included at checkout. Canadian orders are final sale.
Before you decide: read the Rise Nutrition reviews, every product rated by verified buyers.
Written by the team at Rise Nutrition, Toronto, Canada’s single-ingredient ancestral nutrition brand. Questions: ray@risenutritions.ca
From Rise Nutrition
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