$14.95 per container, before delivery
$1.25 per 5g L-glutamine, before delivery
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at Double Wood Supplements (direct) →Label, prices & sources →Optimum Nutrition Glutamine Capsules (240 capsules)
D · None located
Label read Oct 30, 2026. Where the data comes from
Is Optimum Nutrition third party tested? · Which L-glutamine brands are third-party tested?
Comparing with a package we do not list? Cost per dose calculator
Cost
$0.958
per 5g L-glutamine
$22.99
per container · Optimum Nutrition (direct)
$28.74
for thirty doses of 5g L-glutamine, before delivery
Amount per serving
1g L-glutamine
Servings per container
120
Units needed per dose
10.00 capsules
Doses per container
24.0
Cost per serving
$0.192
- Printed on this bottle's own panel image (ONUS-glutamine-capsules_Label_240-capsules_120-servings.jpg) as "L-Glutamine 1g*" in a "Serving Size 2 Capsules" serving, with "Servings Per Container 120"; the same image prints "240 CAPSULES", and 120 servings of 2 capsules is 240. We compare grams of L-glutamine, and the panel prints grams, so nothing is converted. The panel names L-glutamine and no other dietary ingredient. The other ingredients are recorded as printed, "Gelatin, Magnesium Stearate." The capsule is gelatin, so the product is not vegan or vegetarian. No gluten or allergen statement is printed, so both are Unknown.
Delivery
Delivery cost
$5.99
Below free delivery (orders over $75.00); $52.02 more would make delivery free.
Cost per dose delivered
$1.21
To get free delivery
Spend $52.02 more at Optimum Nutrition (direct)
Delivery policy: Optimum Nutrition (direct), Optimum Nutrition (direct) delivery terms, re-read November 1, 2026 · checked Nov 1, 2026
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
- $22.99
- Delivery
- $5.99
- Order total, before tax
- $28.98
- Per 5g L-glutamine, delivery included
- $1.21
120 labeled servings in this order. Comparison doses are a price yardstick, not advice about how much to take.
Unit price checked Nov 13, 2026.
View this package at Optimum Nutrition (direct) →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
Standard delivery in the US is free on orders over $75 and costs $5.99 below that, from the delivery chart on Optimum Nutrition's Delivery Information page, read October 2, 2026. The storefront's announcement bar has read "Free shipping on orders above $75" since at least September 7, 2026. Subscription orders also ship free at any size, but that is a different purchase from the one-time price shown here. Read again on October 17 and November 1, 2026, with the same chart row.
Where to buy
Optimum Nutrition (direct) · lowest recorded available price
we earn nothing on this link
checked Nov 13, 2026$22.99Buy
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: $22.99 at Optimum Nutrition (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 D: Could not locate independent data
We could not locate independent testing or certification for this product. That is a statement about our search, not about the product. These programs certify what a company submits to them, so a product can be absent simply because it was never entered, which is not a finding against it. The databases we searched, and when, are listed below. If a program is not listed, we did not check it, and we make no claim about it either way.
- Searched 4 certifier databases and found no listing for this product, and located no published test results. A program not named below was not checked for this product.
- Checked NSF Certified for Sport database on Oct 30, 2026: not listed.
- Checked USP Verified database on Sep 21, 2026: not listed.
NSF Certified for Sport: checked, not listed
Checked and absent. NSF's whole Certified for Sport directory was read on Oct 30, 2026, 2,593 listings, and holds two Optimum Nutrition rows, 1256427 "GOLD STANDARD 100% WHEY DOUBLE RICH CHOCOLATE" and 1484223 "Gold Standard 100% Whey Vanilla Ice Cream", both the Gold Standard 100% Whey line; none of the 14 listings whose product name contains "glutamine" is this brand's. The panel image read for this package prints no NSF mark. Absence from a database is not a failed test.
Source: NSF Certified for Sport, NSF Certified for Sport directory, full read, October 30, 2026 (Optimum Nutrition and MuscleTech, L-glutamine) · checked Oct 30, 2026USP Verified: checked, not listed
Checked and absent. We read all 16 pages of USP's own Verified Products directory in a browser on Sep 21, 2026: 159 products from 16 brands. We saved a copy. This brand is not in it: not in the directory's brand filter, and not in any product name. USP verifies the products a company submits to it, so this shows only which products were submitted. Not being listed is not a failed test.
Source: USP, USP Verified Products directory, full read, September 21, 2026 · checked Sep 21, 2026Informed Sport: checked, not listed
Optimum Nutrition is on LGC's own Informed Sport product list of October 2026, read on Oct 3, 2026, with nine lines printed under the brand, and none of them names glutamine. Not being listed is not a failed test. Informed Sport certifies what a company submits, so this means only that this product was not on the published list that day.
Source: LGC (Informed Sport), Informed Sport product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026Informed Choice: checked, not listed
Checked and absent. LGC's own Informed Choice product list of October 2026, read on Oct 3, 2026, prints 49 lines under Optimum Nutrition, and none of them names glutamine capsules. Its two glutamine lines are "ON Glutamine Powder" and "GLUTAMINE POWDER (India)", and its two capsule lines are "Micronized Creatine Capsules" and "ON BCAA Capsules". The panel image read for this bottle prints no Informed Choice mark. Not being listed is not a failed test. Informed Choice certifies what a company submits, so this means only that this product was not on the published list that day.
Source: LGC (Informed Choice), Informed Choice product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026No laboratory report with figures is recorded here for this product.
Not established: Heavy-metal testing, Label-accuracy testing.
Absence of data is not evidence that a product is clean. It means we found no published result for that testing.
Label
Form
capsule
Serving size
2 capsules
Active ingredient
L-glutamine: 1g as labeled
Printed on this bottle's own panel image (ONUS-glutamine-capsules_Label_240-capsules_120-servings.jpg) as "L-Glutamine 1g*" in a "Serving Size 2 Capsules" serving, with "Servings Per Container 120"; the same image prints "240 CAPSULES", and 120 servings of 2 capsules is 240. We compare grams of L-glutamine, and the panel prints grams, so nothing is converted. The panel names L-glutamine and no other dietary ingredient. The other ingredients are recorded as printed, "Gelatin, Magnesium Stearate." The capsule is gelatin, so the product is not vegan or vegetarian. No gluten or allergen statement is printed, so both are Unknown.
Vegan
No
Gluten free
Unknown
Allergens
Unknown
Other ingredients
Gelatin (capsule), Magnesium Stearate
Label facts rest on: Optimum Nutrition, Supplement Facts panel: Optimum Nutrition Glutamine Capsules, 240 capsules · checked Oct 30, 2026
Other tracked packages
Packages in the same category and format, with the same ingredients. Where we recorded the ingredient forms from the label, only packages with the same forms are shown. Where a category is compared by strength, they also have the same labeled strength. Only current prices are shown, cheapest container first. Prices are before delivery. Formulas, flavors and allergens may differ: check each label. These are browsing options, not recommended substitutes.
$17.97 per container, before delivery
$0.624 per 5g L-glutamine, before delivery
Also contains, not counted in the price per dose: acacia fiber (Acacia senegal) (gum) 30 mg
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at Nutricost (direct) →Label, prices & sources →$25.97 per container, before delivery
$0.433 per 5g L-glutamine, before delivery
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at BulkSupplements.com →Label, prices & sources →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.