DeliveredDose

What is the cheapest NSF certified collagen?

Our pick: Sports Research Collagen Peptides, Unflavored (32 oz), $0.665 per 10g delivered. NSF Certified for Sport does not list this package; it qualifies because Informed Choice lists it.
Buy at Sports Research (direct)why this one

BulkSupplements.com Collagen Peptides Powder (Bovine), Unflavored (500 g) is the cheapest per 10g, at $0.545 before delivery, at $26.97 a container.

8 of the 33 collagen peptides products we track have their exact package named in NSF's Certified for Sport database. That is a stricter test than “the brand is NSF certified”, and it is deliberately so: NSF lists package sizes against each certificate, and a size it does not name is not one it has stood behind. Each price is delivered where the retailer publishes a delivery rate and before delivery where it does not, and each row says which. 6 more collagen peptides packages, from Sports Research, are certified by Informed Choice or Informed Sport, whose listings record tested batches and no package size at all, so they cannot be ranked by the exact-package test this page applies. Every brand, by program: Which collagen brands are third-party tested?

Listed, but at another package

NSF lists these products, and the listing names a package other than the one we price. Very likely the same formula; not a package NSF has put its name to.

Cheapest among the 8 certified collagen peptides packages we have checked, not the cheapest that exists. NSF certifies collagen peptides from more brands than we carry, and our catalog is extended brand by brand, so a certified product we have not added yet cannot appear here however cheap it is.

Every brand in this category, by program: Which collagen brands are third-party tested? NSF Certified for Sport vs Informed Sport: what is the difference?

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.

Our pick, delivery included · Cheapest independently tested, delivery known
Sports Research Collagen Peptides, Unflavored (32 oz)
$0.665per 10g, delivered$19.94 a month
B · TestedB · Informed ChoiceBuy at Sports Research (direct) · $59.95
Cheapest per 10g, delivery known
Double Wood Supplements Marine Collagen Powder, Unflavored (38 servings)
$0.658per 10g, delivered if you add $0.05 for free delivery$19.74 a month
Not our pick: no independent verification we could locate.
D · None locatedD · None locatedBuy at Double Wood Supplements (direct) · $29.95
Cheapest independently tested, before delivery
BulkSupplements.com Collagen Peptides Powder (Bovine), Unflavored (500 g)
$0.545per 10g, before delivery$16.35 a month
Not our pick: delivery cost is not published.
Delivery is extra and not published; free from $59.00.
A · CertifiedA · NSF Certified for SportBuy at BulkSupplements.com · $26.97
Least to spend today
Sports Research Collagen Peptides, Unflavored (3.9 oz)
$1.86per 10g, delivered$55.77 a month
More per 10g, but $39.50 less to spend today, delivered.
B · TestedB · Informed ChoiceBuy at Sports Research (direct) · $12.95
How these lines are chosen

Among 33 products and 33 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.

More questions like this

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.