How much collagen is in a scoop?
Anywhere from 2.5 g to 22 g, depending whose label it is. Across the 39 collagen powders whose panel states an amount, a labeled serving holds 9 different amounts, and no one amount accounts for even half of them. The category next door does cluster: 23 of the 24 creatine powders whose serving we have from the label or the seller give the same 5 g, which is why a tub of creatine can be compared by its serving count and one of these cannot. So a price per serving compares nothing here, and this site prices every one of them per 10 g instead.
What that does to a shelf: both Sports Research Organic Collagen Peptides, Unflavored (10.58 oz) and Bare Performance Nutrition Collagen Protein, Unflavored (30 servings) are sold as 30 servings. One label calls a serving 10 g of collagen and the other 22 g, so the same number on the front of two tubs is two different purchases.
| Collagen per serving | Packages | Cheapest per 10 g | Cheapest at this serving |
|---|---|---|---|
| 2.5 g | 8 | $0.40 | BulkSupplements.com Porcine Collagen Powder (1 kg) buy |
| 10 g | 6 | $1.03 | Sports Research Marine Collagen Peptides, Unflavored (12 oz) (last known price, Oct 17) check price |
| 11 g | 14 | $0.379 | BulkSupplements.com Collagen Peptides Powder (Bovine), Unflavored (1 kg) buy |
| 12 g | 3 | $0.547 | Double Wood Supplements Collagen Peptides Powder, Unflavored (38 servings) buy |
| 13 g | 1 | $1.72 | Thorne Collagen Plus, Passion Berry (30 servings) buy |
| 15 g | 2 | $1.11 | Core Med Science Collagen Peptides Powder, Unflavored (30 servings) buy |
| 16.8 g | 2 | $1.09 | Momentous Collagen Peptides, Unflavored (30 servings) buy |
| 20 g | 2 | $0.713 | BUBS Naturals Collagen Peptides, Unflavored (20 oz, 567 g) buy |
| 22 g | 1 | $0.682 | Bare Performance Nutrition Collagen Protein, Unflavored (30 servings) buy |
5 more packages are not in the table, because their panels state no collagen amount we can use. 4 print one figure over a blend of several sources with no amount against any of them. One names a single collagen source and prints no figure for it. Either way there is nothing to put per serving and nothing to put against a price. They are listed on the collagen page with that said on the row.
Every figure is the collagen each product's own Supplement Facts panel states per serving, and not the protein line beside it, which on these labels is a gram or two smaller. A serving is a scoop on most of these and a single-serve packet on the rest; either way the figure is the one the panel prints. 10 g is the yardstick this site prices collagen against, not an amount anyone should take.
Where to buy: the collagen peptides shortlist
The pick is the cheapest certified product, at the exact package sold where the certifier names packages, with no adverse finding on record, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving; per delivered dose where the retailer publishes a delivery rate. Where none does, it is the cheapest such product before delivery, and it says how far the order is from free delivery. It is the same pick the category page shows. Any answer shown beside it is the cheapest under a different rule and says so on its own line; answers that cost more than the pick fold under one line until you ask for them.
How these lines are chosen
Among 44 products and 44 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
A pick has to be independently certified, at the exact package sold where the certifier names packages, with no recall or failed test, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving. Where the retailer publishes no delivery rate, the pick is priced before delivery and says so. Nothing we track here clears all of those yet. This one misses at least one bar, and says which:
Full comparison of every product in this category: Collagen Peptides. Every question we answer: the question index.
What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.