$24.97 per container, before delivery
$3.12 per 25g protein, before delivery
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at BulkSupplements.com →Label, prices & sources →BulkSupplements.com Casein Protein Powder (100 g)
A · NSF Certified for Sport
Another size’s label read Oct 31, 2026. Where the data comes from
Is BulkSupplements third party tested? · Which casein protein brands are third-party tested?
Comparing with a package we do not list? Cost per dose calculator
Cost
$7.32
per 25g protein
$21.97
per container · BulkSupplements.com
$219.70
a month at one dose a day, before delivery
Amount per serving
25g protein
Servings per container
3
Units needed per dose
4.00 tablespoons
Doses per container
3.0
Cost per serving
$7.32
- This bag has no published panel of its own. It is entered from the 1 kg bag's panel image (Casein-Protein-Powder-1kg-Label-V008.jpg), which prints "Protein 25g" in a "Serving Size: 4 tbsp (about 30g)" serving, and from its own bag front on the same page (Casein-Protein-Powder-100g-Main-Image-V002), which prints "30g PER SERVING / 100g WEIGHT / 3 SERVINGS", together with the store feed, whose variant SKU CASEP100 states the package. A size with no panel of its own is entered this way only when its serving is the read panel's, so the serving, the protein and the ingredient here are that panel's. The 3 servings are the front's own count; 3 servings of 30 g is 90 g. We leave the net weight out on purpose. We price the protein in the powder, not the powder itself, so we never divide one weight by the other. The 1 kg panel's GLUTEN FREE icon is what the gluten free answer rests on; casein is from milk, so not vegan, and no label face makes a vegetarian claim.
Delivery
Delivery cost
Applies, amount not published
Delivery is NOT free on this order. It is $37.04 short of free delivery (orders over $59.00). This retailer does not publish one fixed delivery rate, so we cannot tell you exactly what delivery will add. Free delivery on orders over $59 within the contiguous US. Below that, the rate is calculated at checkout and is not published in advance. Alaska, Hawaii and Puerto Rico may incur extra charges by weight. Read again on October 30, 2026 with the same terms.
Cost per dose delivered
at least $7.32
We will not put a number on this. The product price is the least you could pay, not what you will pay. To know the delivered cost in advance, reach the free-delivery threshold or choose a retailer that publishes its rate.
To get free delivery
Spend $37.04 more at BulkSupplements.com
Delivery policy: BulkSupplements, BulkSupplements shipping policy, re-read October 30, 2026 · checked Oct 30, 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
- $21.97
- Delivery
- Unknown
- At least, before delivery & tax
- $21.97
- Per 25g protein, before delivery
- $7.32
3 servings in this order. Comparison doses are a price yardstick, not advice about how much to take.
Delivery is extra. The retailer has not published a rate we can apply.
Unit price checked Nov 13, 2026.
View this package at BulkSupplements.com →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 delivery on orders over $59 within the contiguous US. Below that, the rate is calculated at checkout and is not published in advance. Alaska, Hawaii and Puerto Rico may incur extra charges by weight. Read again on October 30, 2026 with the same terms.
Where to buy
BulkSupplements.com · lowest recorded available price
we earn nothing on this link
checked Nov 13, 2026$21.97Buy
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: $21.97 at BulkSupplements.com, checked . Unchanged since we started checking on Oct 31 (5 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.
NSF Certified for Sport: currently listed (1815488)
Listing 1815488 "CASEIN POWDER", Bulk Supplements, opened on Oct 31, 2026, prints Product Form Powder, Flavor Unflavored, Package Size "100g, 250 g, 500 g, 1 kg", Serving Size "4 tbsp (~30 g)" and Protein 25 g. The store sells this bag as the 100 g variant of its Casein Protein Powder, and its front prints "100g WEIGHT" and 3 servings, a weight the listing names; the panel this bag is entered from prints "Serving Size: 4 tbsp (about 30g)" and "Protein 25g". The listing names the weight of this bag and the serving and protein on the panel, so it names the package sold. The label image the listing files is the 1 kg bag's front. No label face of this bag that was read prints an NSF mark.
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 |
From the program's own published description of its process. Source. “Not stated” means the program does not publish a clear answer. It does not mean no.
USP 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
BulkSupplements.com is not on the October 2026 Informed Sport product list, which we read on Oct 3, 2026. The list, published by LGC, has 497 brands and 1,887 product lines. Not being listed is not a failed test. Informed Sport certifies what a company submits, so this means only that no product from this brand was 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
BulkSupplements.com is not on the October 2026 Informed Choice product list, which we read on Oct 3, 2026. The list, published by LGC, has 201 brands and 853 product lines. Not being listed is not a failed test. Informed Choice certifies what a company submits, so this means only that no product from this brand was 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.
Label
Form
powder
Serving size
4 tablespoons (on another size’s panel)
Active ingredient
Protein: 25g per serving, on another size’s panel
This bag has no published panel of its own. It is entered from the 1 kg bag's panel image (Casein-Protein-Powder-1kg-Label-V008.jpg), which prints "Protein 25g" in a "Serving Size: 4 tbsp (about 30g)" serving, and from its own bag front on the same page (Casein-Protein-Powder-100g-Main-Image-V002), which prints "30g PER SERVING / 100g WEIGHT / 3 SERVINGS", together with the store feed, whose variant SKU CASEP100 states the package. A size with no panel of its own is entered this way only when its serving is the read panel's, so the serving, the protein and the ingredient here are that panel's. The 3 servings are the front's own count; 3 servings of 30 g is 90 g. We leave the net weight out on purpose. We price the protein in the powder, not the powder itself, so we never divide one weight by the other. The 1 kg panel's GLUTEN FREE icon is what the gluten free answer rests on; casein is from milk, so not vegan, and no label face makes a vegetarian claim.
Vegan
No (on another size’s panel)
Gluten free
Yes (on another size’s panel)
Allergens
contains milk (on another size’s panel)
Ingredients
Casein Protein (on another size’s panel)
Label facts rest on: BulkSupplements.com, Nutrition Facts panel, bag label and bag fronts: BulkSupplements Casein Protein Powder, 1 kg, with the 100 g, 250 g and 500 g bag fronts · checked Oct 31, 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.
$32.97 per container, before delivery
$1.94 per 25g protein, before delivery
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at BulkSupplements.com →Label, prices & sources →$41.97 per container, before delivery
$1.27 per 25g protein, 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.