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NOW Foods Colostrum Powder Review: Low Price, No IgG Number

Updated November 10, 2026

NOW Foods Colostrum Powder costs $20.54 for 85 g as of October 2026, or $0.242 per gram, which makes it the second-cheapest powder we track. NOW does not state an IgG content for this powder, so its cost per gram of IgG cannot be calculated. Two other points: the jar holds only 3 oz, and it is not a single-ingredient product.

What you actually get in the jar

The product is NOW Colostrum Powder, 3 oz. According to the nowfoods.com label (seen via a search snippet, not a direct page fetch), one serving is 1 level teaspoon, about 2.47 g. That serving contains 2.4 g of colostrum, and the jar holds about 34 servings. Older versions of the label listed a 1.65 g serving and about 52 servings per jar. If you are comparing doses, check the serving size printed on the jar you receive.

The figures, all as of October 2026:

• Net weight: 85 g (3 oz)
• Price: $20.54
• Price per gram of powder: $0.242
• Price per serving: about $0.60 ($20.54 ÷ 34)
• Price per gram of colostrum: about $0.252. This is our own calculation: 34 × 2.4 g = 81.6 g of colostrum in the jar.
• IgG: not stated for the powder
• Origin: not stated beyond "packaged in the USA"
• Processing method: not stated

The label lists sunflower lecithin and maltodextrin as added ingredients. Going by the label's own numbers, they make up roughly 0.07 g of each 2.47 g serving, or about 3%. That is small, and lecithin is often added to help a powder mix into water. It still means this is not a single-ingredient product. If your filter is "colostrum and nothing else", it does not pass.

The missing number: IgG

Immunoglobulin G (IgG) is the main measurable quality marker for colostrum. Review literature reports that IgG makes up most of the immunoglobulin fraction in bovine colostrum. The same literature reports that IgG content varies widely from cow to cow, with time after calving and with processing (McGrath et al., 2016; Playford & Weiser, 2021). Two powders with the same price per gram can therefore deliver very different amounts of IgG.

NOW does not give an IgG percentage for this powder. NOW's colostrum capsules are labeled 25% IgG, but they are a different product. You should not assume the powder matches them. What the powder does have is a low price per gram. Without an IgG figure, the comparison that actually matters can only be estimated:

What the IgG cost would be at different assumed percentages

These numbers are hypothetical. They show how sensitive the result is to a figure NOW does not publish, and they are not estimates of what the jar contains.

To match Nutricost's cost per gram of IgG, NOW's powder would need about 41% IgG ($0.242 ÷ $0.59). That would be unusually high for a powder sold at this price. At the other end, NOW would need only about 9% IgG to undercut the brands that state an IgG percentage and charge $0.667/g. In short, NOW is very likely more expensive per gram of IgG than Nutricost, and possibly cheaper than the premium brands. Without a label figure, that last part cannot be checked.

How it compares with the other eight powders we track

The table below is sorted by price per gram of powder, using seller-listed prices as of October 2026. "Not stated" means the brand does not publish that figure for the product. For the full nine-brand table with notes, see our colostrum price comparison.

Two notes on our own brand's row. BIOMIXA, the site owner's brand, states 25% IgG only on biomixa.com; its Amazon listing says only "Natural IgG". Its own Supplement Facts also give a 3 g scoop with 60 servings, which does not fit a 120 g jar. We flag that inconsistency instead of resolving it in BIOMIXA's favor.

Testing and transparency

NOW says its manufacturing holds an A-rated GMP certification from the Natural Products Association (NPA). That certification covers manufacturing practices. It does not verify what is in a given jar. We found no third-party product certification for this powder and no public certificate of analysis (COA). That puts NOW in the same position as every other brand in the table: none publishes a COA we could find. NOW's gap is wider, though, because it also leaves out origin, processing method and IgG content. Several competitors at least make claims, unverified, about first-milking collection, grass-fed herds or low-heat drying.

What the label leaves out

• IgG percentage or IgG milligrams per serving
• Country of origin of the colostrum (only "packaged in the USA" is stated)
• Collection window after calving, for example the first 6 or 24 hours
• Pasteurization or drying method
• Any published batch test results

Who it makes sense for

NOW's powder fits a buyer who wants to try colostrum at the lowest cost and does not care about a stated potency. A 3 oz jar for about $20 is a cheap trial. On price per gram, Nutricost is still cheaper, at $0.176 versus $0.242, and it states 30% IgG. Nutricost requires buying a larger 227 g tub for $39.95, but on paper it beats NOW on both price measures.

It fits less well if you are comparing on IgG content, if you want a single-ingredient powder, or if you take large daily doses. At a few teaspoons a day, an 85 g jar runs out in under two weeks. You can enter your own dose in the colostrum price calculator to see the monthly cost. On the evidence: some studies suggest bovine colostrum may modestly influence gut-related and upper-respiratory markers in athletes, but results are mixed and depend on dose and product (Davison, 2021). For a checklist of what to look for on any label, see the buyer's guide.

FAQ

How much IgG is in NOW Colostrum Powder?

NOW does not state one. The powder label gives no IgG percentage and no IgG milligrams per serving. NOW's colostrum capsules are labeled 25% IgG, but they are a separate product, and the powder should not be assumed to match them. Without a stated figure, you cannot calculate a cost per gram of IgG. You can only model it under assumed percentages, as in the table above.

Is NOW Colostrum Powder pure colostrum?

No. The label lists sunflower lecithin and maltodextrin alongside the colostrum. Per the current label, each 2.47 g teaspoon contains 2.4 g of colostrum, so the added ingredients come to roughly 3% by weight. That is a small share, but buyers who specifically want a single-ingredient powder should look at products that make that claim, and should keep in mind that those are brand claims too.

Why is the serving size different on my jar?

NOW's label has changed over time. The current label (seen via a search snippet of the nowfoods.com page) lists about 2.47 g per level teaspoon and about 34 servings. Older labels listed 1.65 g and about 52 servings. The jar weight is the same 85 g, so price per gram does not change. Only the per-serving cost and the number of servings differ.

Is NOW cheaper than Nutricost?

Not per gram. As of October 2026, NOW costs $0.242/g and Nutricost costs $0.176/g. Nutricost also states 30% IgG, which works out to $0.59 per gram of IgG. NOW's powder would need about 41% IgG to match that, and NOW publishes no IgG figure at all. NOW's lower sticker price comes from the smaller jar: $20.54 for 85 g against $39.95 for 227 g.

Sources

• McGrath BA, Fox PF, McSweeney PLH, Kelly AL. Composition and properties of bovine colostrum: a review. Dairy Science & Technology. 2016;96:133–158.
• Playford RJ, Weiser MJ. Bovine colostrum: its constituents and uses. Nutrients. 2021;13(1):265.
• Davison G. The use of bovine colostrum in sport and exercise. Nutrients. 2021;13(6):1789.
• Godhia ML, Patel N. Colostrum – its composition, benefits as a nutraceutical: a review. Current Research in Nutrition and Food Science. 2013;1(1):37–47.

For general information only, not medical advice. Statements have not been evaluated by the FDA. Colostrum supplements are not intended to diagnose, treat, cure, or prevent any disease. Talk to a healthcare provider before starting a supplement, especially if you have a dairy allergy.