The middle of the market is $5.90 per milligram, the median across 2,529 in-stock single vials from 105 sellers covering 128 compounds, in our capture of 23 September 2026. Half of everything on sale falls between $3.50 and $9.79 per mg.
These figures come from one dated capture. Our price pages carry the current numbers, recaptured weekly.
The most widely sold compound is BPC-157, stocked by 61 of the sellers we track. Its 10 mg vial has a median price of $56.50. The cheapest is $25.99 and the dearest is $294 for the same size vial.
That eleven-fold spread covers one compound at one size. Buy a 10 mg vial every month at the high end rather than the low one and you have spent $3,216 instead of $312 over a year, for powder with the same name on it. The spread does not track quality, and no bulk discount explains it. It is what a market looks like when nobody publishes a price list.
How much does each peptide cost per mg?
From $0.05 per mg for glutathione to $81 for IGF-1 LR3, among the 28 compounds stocked by 25 or more sellers. The commonly searched ones sit close together: BPC-157 at $6.30, retatrutide at $6.73, semaglutide at $6.83.
| Compound | Sellers | Median per mg | Common vial | Its median price | Cheapest size per mg |
|---|---|---|---|---|---|
| BPC-157 | 73 | $6.30 | 10 mg | $56.50 | 15 mg at $4.57 |
| GHK-Cu | 57 | $0.82 | 100 mg | $65.00 | 100 mg at $0.65 |
| NAD+ | 55 | $0.16 | 500 mg | $79.99 | 1000 mg at $0.11 |
| MOTS-c | 52 | $5.00 | 10 mg | $54.99 | 40 mg at $3.23 |
| Retatrutide | 50 | $6.73 | 10 mg | $97.00 | 60 mg at $4.17 |
| Epitalon | 47 | $3.80 | 10 mg | $42.50 | 50 mg at $1.90 |
| TB-500 | 47 | $8.00 | 10 mg | $68.00 | 10 mg at $6.80 |
| Tesamorelin | 47 | $7.60 | 10 mg | $75.00 | 20 mg at $6.25 |
| AOD-9604 | 45 | $10.25 | 5 mg | $52.75 | 10 mg at $8.00 |
| Ipamorelin | 43 | $6.95 | 10 mg | $56.65 | 10 mg at $5.66 |
| KPV | 43 | $5.50 | 10 mg | $52.50 | 10 mg at $5.25 |
| Selank | 43 | $6.10 | 10 mg | $54.99 | 10 mg at $5.50 |
| Melanotan II | 40 | $4.00 | 10 mg | $40.00 | 10 mg at $4.00 |
| PT-141 | 40 | $4.50 | 10 mg | $45.00 | 10 mg at $4.50 |
| DSIP | 39 | $6.00 | 5 mg | $39.50 | 10 mg at $5.50 |
| Semax | 38 | $5.50 | 10 mg | $56.75 | 30 mg at $2.32 |
| Tirzepatide | 37 | $4.67 | 10 mg | $70.00 | 60 mg at $2.20 |
| 5-Amino-1MQ | 36 | $2.87 | 50 mg | $85.00 | 50 mg at $1.70 |
| CJC-1295 no DAC | 35 | $8.10 | 5 mg | $41.00 | 10 mg at $6.80 |
| Sermorelin | 35 | $8.90 | 10 mg | $69.00 | 10 mg at $6.90 |
| Cagrilintide | 32 | $11.00 | 10 mg | $100.00 | 10 mg at $10.00 |
| Kisspeptin | 31 | $6.00 | 10 mg | $59.99 | 10 mg at $6.00 |
| Thymosin alpha-1 | 29 | $8.40 | 10 mg | $80.50 | 10 mg at $8.05 |
| IGF-1 LR3 | 28 | $81.25 | 1 mg | $84.50 | 1 mg at $84.50 |
| CJC-1295 with DAC | 25 | $12.45 | 5 mg | $57.00 | 10 mg at $9.34 |
| Glutathione | 25 | $0.05 | 1500 mg | $70.00 | 1500 mg at $0.05 |
| Oxytocin | 25 | $7.00 | 5 mg | $35.00 | 10 mg at $5.56 |
| Semaglutide | 25 | $6.83 | 10 mg | $90.00 | 30 mg at $4.13 |
Medians, from the filtered set.1 "Common vial" is the size most sellers stock, and the last column is the size with the lowest price per milligram where at least four sellers list it. Fifty-seven compounds have eight or more sellers; this table shows the 28 with 25 or more.
The last column is where the money is. Semax costs $5.50 per mg in the 10 mg vial most sellers stock and $2.32 in a 30 mg, and tirzepatide falls from $4.67 to $2.20 at 60 mg. Whether a larger vial suits you depends on how long a reconstituted vial lasts, which our reconstitution guide covers.
Is the price you were quoted normal?
Divide the price by the milligrams in the vial, then compare that figure with the table above.
A 10 mg vial at $60 is $6 per mg, which sits in the middle of the market. The same vial at $150 is $15 per mg, which is above the top quarter for almost everything on this page. Below about $3.50 per mg you are in the cheapest quarter of the market, which is common and by itself means nothing.
Two things throw the sum off. A price quoted "from" a smaller size, and a multipack listed as though it were one vial. Check the size on the page you are buying from rather than the one in the search result.
How we collect these prices
Every figure here comes from our own price capture, taken on 23 September 2026 across 133 sellers and 6,774 listings. Nobody pays to be in it, and no seller is named on this page.1
For the price statistics we use a narrower set: single vials, in stock, priced exactly rather than "from", with the size in milligrams, and with multipacks removed. That leaves 2,529 listings from 105 sellers across 128 compounds.
Prices exclude shipping, and exclude bacteriostatic water, syringes and anything else you need to use the vial. Our guide on what peptide therapy actually costs covers those, and our cost-per-dose guide covers turning a vial price into a per-injection figure.
Why does the same vial cost five times more at one seller than another?
Three things account for most of it, and quality is not among them.
Vial size. Bigger vials are cheaper per milligram, consistently. BPC-157 runs $8.70 per mg in a 5 mg vial, $5.65 at 10 mg and $4.80 at 20 mg. Retatrutide runs $13.30 per mg at 5 mg and $4.17 at 60 mg, a threefold difference for the same powder.1
Who the seller is aiming at. The cheapest listings cluster among sellers competing on price alone. The dearest single-vial listings often come from sellers positioning as premium, with third-party testing and better packaging. That costs money, though not five times the money.
Bad data on the seller's side. The extreme high prices in our capture are usually not what they appear. A $400 BPC-157 vial turns out to be "10mg x 10", and a $659 retatrutide listing is labelled wholesale. We exclude those from the statistics here, and any comparison that leaves them in is averaging a market that nobody can buy from.
Is it cheaper to buy peptides than to get a prescription?
Usually yes on the powder alone, and by less than people expect once the manufacturers' own self-pay programmes are in the picture. The comparison only works for the compounds that exist both ways.
At label maintenance doses, semaglutide at 2.4 mg a week works out to about 10.4 mg over four weeks, and tirzepatide at 10 mg a week to about 43 mg. At the median prices in the table, that comes to roughly $71 of semaglutide powder or $201 of tirzepatide powder per four weeks, before anything else.
Both manufacturers now sell direct to self-paying patients, at prices they have cut twice since late 2025. We are not printing a figure for those programmes, because the number changes by dose, by refill timing and by month, and the only place it is reliably current is the manufacturer's own page. Check LillyDirect for tirzepatide and NovoCare for semaglutide on the day you are comparing.2
| Four weeks at the label maintenance dose | Powder, at our median price | Prescription route |
|---|---|---|
| Semaglutide, 2.4 mg weekly | about $71 | manufacturer self-pay, check current price |
| Tirzepatide, 10 mg weekly | about $201 | manufacturer self-pay, check current price |
| Retatrutide, 10 mg weekly | about $290 | none, no approval anywhere |
The gap is smaller than it was two years ago, and it keeps narrowing. For tirzepatide, once you add testing, water, syringes and the risk that the vial is not what the label says, the powder is no longer dramatically cheaper than a prescription. For retatrutide there is no prescription option at any price, which explains the size of its grey market.
Are peptide prices going up or down?
Barely, in aggregate. Comparing our 23 August and 23 September captures across the 39 compounds with enough listings in both, the median change was zero. Fourteen fell, fifteen rose and ten held steady.1
5-amino-1MQ fell 28% and kisspeptin 24%, both compounds where the number of sellers grew sharply over the month. SS-31 rose 28% and DSIP 20%.
Our coverage grew between the two captures, so part of any movement is new sellers entering the average, not existing sellers changing a price. A compound that went from 14 listings to 42 has a different population behind its median, not only a different price.
Do you pay more at sellers that publish their testing?
No. They are slightly cheaper.
Across 281 listings from the 16 sellers in our data with a named third-party testing lab, prices run about 11% below the market median for the same compound. The rest of the market sets the baseline.1
That is the opposite of what the market's own marketing implies, and it should be held loosely. Sixteen sellers is a small group, and our record captures whether a lab is named, which is not the same as whether testing happens. It does at least kill the idea that paying more buys you documentation.
Are blends cheaper than buying the peptides separately?
Usually you cannot tell, because the listing does not say what is in the vial. Of 581 blend listings from 84 sellers, 269 state no component amounts at all.1 The vial says BPC-157 and TB-500, and the page never says how much of each.
That makes almost half the blend market impossible to price-compare, because a 10 mg blend could be 5 and 5 or 9 and 1.
Where the amounts are stated, the small number of blends we can check runs about 25% below the cost of buying the same milligrams separately. Eleven comparable listings from three sellers is too thin to call that a market rule, and it is the right direction for a bundle.
Does a cheap peptide mean poor quality?
Nothing in the data says so. The cheapest BPC-157 at $25.99 comes from a seller with a full catalogue and ordinary prices across the board.
What does track with a low price in our data is vial size, and how much of the rest of the service the seller provides. A seller who does not pay for third-party testing on each batch has lower costs and can charge less. Our guide on reading a certificate of analysis covers what testing you are or are not getting.
Purity, identity and whether the vial holds the compound on the label are all invisible in the price, at either end of the range.
What else should you budget for?
Shipping, commonly $10 to $30 and often free above a threshold. Bacteriostatic water, syringes and alcohol swabs. Independent testing, if you commission your own. A wasted vial if you reconstitute it wrong, which is the cost people forget.
Prices behind a login are also missing. In this capture, 129 listings require an account before they show a number, so any published average, ours included, describes only the sellers willing to show a number.
Common questions
How do I know if I am being overcharged?
Divide the price by the milligrams in the vial. Between $3.50 and $9.79 per mg is the middle half of the market. Above about $15 per mg you are paying more than three quarters of sellers charge for the same compound, and it pays to check whether the listing is a multipack or a smaller size than you thought.
How much do peptides cost per milligram?
The median across 2,529 in-stock single vials from 105 sellers is $5.90 per mg, with half the market between $3.50 and $9.79, as at 23 September 2026. The range across compounds runs from about $0.05 per mg for glutathione to about $99 per mg for follistatin.
How much does a 10 mg vial of BPC-157 cost?
The median is $56.50 across 61 sellers. The cheapest in-stock listing is $25.99 and the most expensive is $294 for the same 10 mg size.
How much does retatrutide cost?
The median is $6.73 per mg across 50 sellers, and a 10 mg vial runs a median of $97, with in-stock listings from $42 to $530. It has no approved version at any price.
How much does semaglutide or tirzepatide cost from a peptide seller?
Semaglutide runs a median of $6.83 per mg and tirzepatide $4.67, so a 10 mg vial is typically $90 and $70. Both exist as approved prescription products, which the comparison section covers.
Why is the same peptide so much cheaper at some sellers?
Vial size explains a lot of it, since bigger vials are cheaper per milligram everywhere. The rest is positioning and what the seller pays for, particularly third-party testing. Price does not tell you what is in the vial.
Is it cheaper to buy peptides than to get a prescription?
On the powder alone, yes: about $71 of semaglutide or $201 of tirzepatide covers four weeks at label maintenance doses. Both manufacturers now run direct self-pay programmes whose prices have been cut repeatedly, so check theirs on the day rather than trusting any figure written into an article. For retatrutide there is no approved product at any price.
Which vial size is cheapest per mg?
It varies by compound, and the table above gives the cheapest size for each. Semax drops from $5.50 per mg at 10 mg to $2.32 at 30 mg, tirzepatide from $4.67 to $2.20 at 60 mg, and NAD+ from $0.16 to $0.11 at 1,000 mg. For about a third of compounds the commonly stocked size is already the cheapest.
Do bigger vials save money?
Consistently. BPC-157 costs $8.70 per mg in a 5 mg vial and $4.80 per mg in a 20 mg vial. Retatrutide falls from $13.30 per mg at 5 mg to $4.17 per mg at 60 mg. Whether a bigger vial suits you is a separate question, because a reconstituted vial has a working life.
What is the most expensive peptide?
Among compounds with enough listings to judge, follistatin at about $99 per mg and IGF-1 LR3 at about $81 per mg. PEG-MGF and FOXO4-DRI sit around $19 to $20.
What is the cheapest?
Glutathione at about $0.05 per mg, L-carnitine at about $0.10 and NAD+ at about $0.16. All three sell in much larger vials than most peptides, and that is part of why the per-milligram figure is low.
Are peptide prices going up or down?
Between our August and September captures the median across 39 comparable compounds did not move. Fourteen compounds fell, fifteen rose, ten held. Coverage grew between captures, so some of that movement is new sellers appearing in the average.
Do sellers with third-party testing charge more?
No. Across 281 listings from 16 sellers with a named testing lab, prices run about 11% below the median for the same compound. A higher price does not buy documentation.
Are blended vials cheaper than buying the peptides separately?
Where you can tell, slightly. The catch is that 269 of 581 blend listings never state how much of each component is in the vial, which makes most of the blend market impossible to compare on price at all.
Do these prices include shipping?
No. Shipping typically runs $10 to $30 and is often free above a threshold. Water, syringes and testing are excluded too.
How often do peptide prices change?
Enough that any figure needs a date on it. We recapture the whole market weekly, and every figure here carries the date of the capture it came from.
Why do some sellers hide their prices?
129 listings in this capture require a login before showing a price. Some of that is wholesale gating and some is avoiding comparison. Either way, an average built only from public prices leaves those listings out.
Sources
- Peptide Decoding vendor price capture, 23 September 2026. [peptidedecoding.com/prices](https://peptidedecoding.com/prices). *The site's own data: 6,774 listings across 133 sellers, 149 compounds with at least one price. Price statistics on this page use a filtered subset of 2,529 listings from 105 sellers across 128 compounds, limited to single vials, in stock, priced exactly rather than as a starting price, sized in milligrams, with multipacks and wholesale listings excluded by product title. Medians rather than means throughout, because a handful of mislabelled multipacks would otherwise move every average. A dated snapshot; see the prices page for newer captures.* ↩
- Manufacturer direct self-pay programmes: LillyDirect for tirzepatide, NovoCare for semaglutide. *Deliberately cited without a price. Both companies cut their self-pay prices in late 2025 and again since, the figure varies by dose and by refill timing, and the only current source is each manufacturer's own page. Reporting a number here would be stale within weeks.* ↩