Thorne L-Glutamine Powder (90 servings)
Label read Oct 30, 2026. Where the data comes from
Is Thorne L-glutamine NSF certified? · Is Thorne third party tested? · Which L-glutamine brands are third-party tested?
Comparing with a package we do not list? Cost per dose calculator
Cost
- Printed on this tub's own panel image as "L-Glutamine 5 g" in a "Serving Size: One Scoop (5.6 g)" serving with "Servings Per Container: 90", headed "One Scoop (5.6 g) Contains:". We compare grams, so the panel's 5 g is recorded as printed. The 5.6 g scoop weight is not the amount compared. The 5 g comparison dose is one of this label's servings, one scoop. The panel names one ingredient and no other active, and prints no other-ingredients line. The front prints "NET WT 17.8 OZ (504 G)", and 90 scoops of 5.6 g is 504 g. The back face's GLUTEN FREE mark and the page's "Gluten Free" badge are what the gluten free answer rests on; no vegan or vegetarian claim is made.
Delivery
Buying more than one? Calculate the order
Change the quantity to see the actual container subtotal and whether it reaches the recorded free-delivery threshold.
- Container subtotal
- $67.00
- Delivery
- Free
- Order total, before tax
- $67.00
- Per 5g L-glutamine, delivery included
- $0.744
90 labeled servings in this order. Comparison doses are a price yardstick, not advice about how much to take.
Set the quantity at the retailer. This calculator does not add items to a cart. Uses the recorded unit price with no coupon or quantity discount. Tax is extra. Delivery terms apply to the contiguous US unless the policy says otherwise.
Delivery terms and limits
Free Ground shipping on all retail orders within the contiguous United States, with no minimum order value, from Thorne's shipping FAQ, first read August 31, 2026 and read again on September 18, 2026 with the same terms. Alaska and Hawaii are excluded: free above $300, otherwise a variable fee with a $30 minimum. Wholesale terms differ ($200 minimum, $11.95 below it) and are not what this site prices. With no threshold to clear, delivered cost within the contiguous US equals the price at any cart size. Read again on October 30, 2026 with the same terms.
Where to buy
Ordered by price, lowest first, and labeled so you can see what each link earns us. Commission is never an input to that ordering. If the retailer with the lowest current price pays us nothing, that is still the one we send you to. No link on this page earns us anything. Every Buy button is a plain retailer link.
Price history
Latest recorded price: $67.00 at Thorne (direct), checked . Unchanged since we started checking on Oct 30 (16 checks).
We check each price about once a day, so this is the range we recorded, not necessarily every price there has been. It says what changed, not why, and nothing about where the price goes next.
Verification level A: Independently certified
This exact package is inside the certifier’s own scope: named on an NSF Certified for Sport listing, or, for USP Verified, the product is in USP’s directory and its mark is on this package’s label. Both audit the manufacturing site and both confirm the label’s own claims against the finished product. They are not interchangeable beyond that: NSF Certified for Sport also screens for substances banned in sport, and USP Verified does not. USP instead checks that the product dissolves and releases within a specified time. What each program checks is set out per program below.
- Current listing found: NSF Certified for Sport.
- Checked USP Verified database on Sep 21, 2026: not listed.
What NSF Certified for Sport checks
| Confirms the label’s dose | Yes |
| Tests for heavy metals / contaminants | Yes |
| Screens for substances banned in sport | Yes |
| Reviews manufacturing | On-site audit |
| Testing frequency | Periodic |
No laboratory report with figures is recorded here for this product.
Label
What this rests on: Prices are the last ones we recorded at the retailer named on each product page. Prices go stale, so each page says when it was checked. We track some products, not every one sold, and Amazon and Walmart are not among our stores. Listings and labels are read at the source, and each page links to them. Found an error? Tell us. The full method: How we compare.