BPC-157 vs TB-500 Cost Per Mg: Reading the Listings Correctly
A side-by-side look at how BPC-157 vs TB-500 cost per mg is calculated across different vial sizes, so listing prices can be compared on equal footing.
Reviewed by Benjamin Clark, MD, internal medicine physician ·
Benjamin Clark, MD is a board-certified internal medicine physician with clinical and academic training in evidence-based pharmacotherapy at Vanderbilt University Medical Center.
- bpc-157
- tb-500
- cost-comparison
Comparing BPC-157 vs TB-500 cost per mg means normalizing two listings that rarely share the same vial size, so a sticker price alone says little about which one is the better value. The only reliable way to compare them is to divide the listed price by the total milligrams in the vial, then set the two per-mg numbers side by side.
Why the sticker price is misleading
A supplier catalogue might show BPC-157 at $45 for a 5 mg vial and TB-500 at $60 for a 5 mg vial. At first glance TB-500 looks like the pricier compound. But if the BPC-157 listing is actually a 2 mg vial and the TB-500 listing is a 10 mg vial, the raw dollar figures say almost nothing about which is more cost-efficient per milligram. Vial sizes vary widely between suppliers and even between different listings from the same supplier, which is why cost-per-mg is the only unit that makes an apples-to-apples comparison possible.
The per-mg formula
The calculation is simple division:
Cost per mg = listed price ÷ vial size in mg
For example, a listing priced at $72 for a 10 mg vial works out to $7.20 per mg. A second listing priced at $50 for a 5 mg vial works out to $10.00 per mg. Even though the second listing has the lower sticker price, it is the more expensive option on a per-milligram basis. This is the calculation that should be applied to any BPC-157 vs TB-500 cost per mg comparison before drawing conclusions.
Worked example: two vial sizes each
| Compound | Vial size | Listed price | Cost per mg |
|---|---|---|---|
| BPC-157 | 5 mg | $55 | $11.00 |
| BPC-157 | 10 mg | $95 | $9.50 |
| TB-500 | 5 mg | $70 | $14.00 |
| TB-500 | 10 mg | $120 | $12.00 |
Checking the math: $55 ÷ 5 mg = $11.00 per mg, and $95 ÷ 10 mg = $9.50 per mg for BPC-157. For TB-500, $70 ÷ 5 mg = $14.00 per mg, and $120 ÷ 10 mg = $12.00 per mg. In this hypothetical table, both compounds get cheaper per mg at the larger vial size, and TB-500 carries a higher per-mg figure than BPC-157 across both sizes. These are illustrative numbers pulled from a single fictional catalogue snapshot, not a market average, and real listings should always be recalculated individually.
Why the two compounds price differently
Catalogue prices reflect a combination of synthesis cost, purity grade, batch yield, and the size of the market for each compound, not a single universal factor. A listing’s price also reflects what documentation comes with the vial. A page that discloses batch-specific certificates of analysis, storage conditions, and molecular weight data is giving a buyer more to verify than a page with a price and nothing else. When comparing a BPC-157 listing to a TB-500 listing, checking whether the BPC-157 side comes from a this BPC-157 listing is as relevant to the total value of the purchase as the raw per-mg number.
Reconstitution changes concentration, not cost per mg
It helps to separate two different numbers that sometimes get confused: cost per mg (a purchasing calculation) and concentration after reconstitution (a preparation calculation). Adding bacteriostatic water to a lyophilized vial does not change how much peptide is in the vial or what it cost — it only changes the concentration, expressed as mg per mL. A 5 mg vial reconstituted with 2 mL of bacteriostatic water yields a concentration of 2.5 mg/mL (5 mg ÷ 2 mL = 2.5 mg/mL). The same 5 mg vial reconstituted with 5 mL yields 1 mg/mL (5 mg ÷ 5 mL = 1 mg/mL). Neither of these figures changes the cost-per-mg number calculated at purchase; they only describe how concentrated the solution is once prepared. Readers working through concentration or unit conversions on their own listings can cross-check the arithmetic with a general reference calculator such as peptcalc.com.
Reading listings that omit vial size
Some listings quote only a price and a product name, without stating the vial size in mg. That omission makes a cost-per-mg calculation impossible until the buyer finds the vial size elsewhere on the page, in a linked certificate of analysis, or in the product description. A catalogue that lists every compound with a consistent, visible vial size and price is easier to audit than one that requires digging through separate pages for each figure, which is part of why a single cross-compound register like peer research-peptide catalogs are useful when scanning many listings quickly.
What to check before comparing two listings
Before treating a BPC-157 vs TB-500 cost per mg comparison as final, confirm the following on each listing: the vial size in mg, the listed price, whether shipping or handling fees are included in that price, and the revision date of the listing itself, since prices are updated periodically and an old cached page can understate a current price. A comparison built from a stale price and a current price is not a real comparison, even if the arithmetic is correct.
Summary
Cost per mg is the only unit that allows a fair comparison between BPC-157 and TB-500 listings, since vial sizes and price points vary independently of each other across suppliers. Dividing listed price by vial size in milligrams, checking that both figures come from current listings, and separating the purchasing calculation from any later reconstitution math are the three steps that keep a BPC-157 vs TB-500 cost per mg comparison accurate.