Best Colostrum Supplement in the UK (2026): Ranked by Disclosed IgG
The best colostrum for most people in the UK is Wellgard Pure Colostrum Powder: 800 mg of IgG in each 2 g teaspoon, £0.83 per gram of IgG. It gives the most IgG per serving of the UK colostrum we compared.
By Erin Rose Updated October 18, 2026 How we chose
Our pick for most people
Wellgard Pure Colostrum Powder
£0.83 per gram of IgG · 1 level teaspoon (2 g)
Wellgard says each 2 g teaspoon holds 800 mg of IgG, the antibodies that set colostrum apart. That is the most IgG per serving, and the lowest cost per gram of IgG, of the UK colostrum we compared. A 60 g pouch is 30 teaspoons. Wellgard sells it on Amazon itself.
Which colostrum is right for you?
Want the IgG % printed on the label?
Wellness Extract Colostrum Powder prints 27% IgG on its label, so you can check the math yourself: a 1.5 g serving gives about 0.405 g of IgG. A 150 g tub is 100 servings, at £1.02 per gram of IgG at the brand’s price.
Wellness Extract Colostrum Powder
27% IgG · £1.02 per gram of IgG
Prefer capsules?
Osavi Colostrum 1000 mg capsules are sold by Amazon UK. Two capsules give 1 g of colostrum with 300 mg of IgG, much less than a teaspoon of powder. We could not read a reliable price for it.
Osavi Colostrum 1000 mg
300 mg IgG in 2 capsules
Taking one teaspoon a day? The studies used much more.
Labels suggest 1 to 3 g a day. Small trials on gut and exercise used 20 to 60 g a day. That is why the IgG figure matters: more IgG in each gram means less powder to get more. See how much colostrum to take.
Colostrum on Amazon.co.uk we compared
| Colostrum | Per gram of IgG | Why it is or is not a pick |
|---|---|---|
| Wellgard Pure Colostrum Powder | £0.83 | Our pick: 800 mg of IgG in 2 g, the most per serving and the lowest cost per gram of IgG here |
| Wellness Extract Colostrum Powder | £1.02 | States 27% IgG on the label; 100 servings; £1.02 per gram of IgG |
| Osavi Colostrum 1000 mg | Not worked out | Capsules sold by Amazon UK: 300 mg of IgG in 2 capsules; we could not read a reliable price |
How we chose
We opened each product on Amazon.co.uk with a UK postcode on October 18, 2026 and read its listing and the brand’s own label. IgG (immunoglobulin G) is the main antibody in colostrum, so we pick the product that states the most IgG per serving, and show what a gram of it costs at the brand’s own price. A label that states no IgG cannot be compared this way. No product here is on a public testing list we hold. The US products we review are not sold here. The research on colostrum is small; see what it does and does not show.
Questions people ask
What is the best colostrum in the UK?
Wellgard Pure Colostrum Powder, at £0.83 per gram of IgG at Wellgard’s own price. Wellgard says each 2 g teaspoon holds 800 mg of IgG.
How much colostrum should I take?
Labels suggest 1 to 3 g a day. Small trials used 20 to 60 g a day. Count the IgG, not just the grams of powder. How much colostrum to take.