Straight from the source
We work directly with the suppliers we list. Prices are fetched automatically from each supplier's own website and sales platforms, under data-sharing arrangements we've agreed with them. What you see on Peptide Supermarket is the same number the supplier is actually charging — captured at the source, not copied from somewhere down the chain.
That direct line to the suppliers themselves is the whole point. It's what keeps our price comparisons accurate, current, and accountable — and it's the one thing a site that simply re-publishes our figures can never replicate.
How a price reaches this page
No black box. Here's the exact path every price takes, from the supplier's checkout to your screen:
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1
A direct supplier relationship
We partner with the supplier and agree permission to track their pricing. They know we list them, and they can reach us to correct anything.
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2
Fetched at the source
Our systems read prices straight from the supplier's own website and sales platforms — the live figure, not a number lifted from a third party.
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3
Checked & standardised
We normalise everything to a like-for-like basis (such as price per mg) so comparisons are fair and you are not caught out by pack sizes.
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Published & refreshed daily
Prices update automatically on a daily cycle, and data that goes stale is flagged rather than left to mislead.
Why direct sourcing matters
Pricing is only useful if it's right. Sourcing at the supplier — rather than copying figures second- or third-hand — is what makes the difference:
Accuracy
The live supplier price, not a stale copy.
Freshness
Refreshed daily, straight from the platform.
Accountability
Suppliers can reach us to fix any error.
No broken telephone
Nothing is lost or garbled in re-publishing.
Beware sites that just mirror our data
As the UK's most comprehensive peptide price comparison service, we've seen a number of newer sites appear that publish pricing closely mirroring the data we collect. Sites such as saveonthevial.com and thevialreport.com present themselves as independent verifiers — but to our knowledge they do not hold direct data-sharing arrangements with the suppliers they list, and we can't see how, or how often, their figures are genuinely checked at the source.
We raise this for one reason: inaccurate pricing has real consequences. A figure that was copied once and never refreshed can send you to the wrong supplier, at the wrong price, with no one accountable for the mistake.
Before you trust any price comparison, ask:
- Does the site actually work with the suppliers it lists?
- Is the pricing fetched at the source, or copied from elsewhere?
- How recently was it updated — and can you tell?
- Do they explain their method openly, like this page does?
Don't take our word for it
We don't expect you to take any of this on faith. Here are two things you can see for yourself.
The Vial Report's crawler, caught and blocked
TVR-discovery is The Vial Report's own crawler — recorded here hammering our supplier pages (/suppliers, /suppliers/nova-vitality, /suppliers/peak-body and more) and getting blocked with HTTP 429 by our rate limiter. They aren't collecting this data from suppliers. They're taking it from us.
Our name, all over saveonthevial.com's source code
We've linked an Internet Archive snapshot of saveonthevial.com below, so it can't be quietly edited. Check it yourself:
- 1 Open the archived snapshot using the button below.
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2
Right-click anywhere on the page and choose “View Page Source” (or press
Ctrl+U). -
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Search the source code (
Ctrl+F) for “peptidesupermarket”.
You'll find references to peptidesupermarket.co.uk throughout their page source — the fingerprints of where their data really comes from.
View the archived saveonthevial.com snapshotPartnered with suppliers, owned by none
Working directly with suppliers does not mean any of them control what you see. PeptideSupermarket.co.uk is operated by Lekker Media Ltd, a UK-registered company, and remains fully independent — no supplier owns this site or influences our rankings. You can read more about who we are on our About page, and exactly how we fund the service in our affiliate disclosure.
Compare prices from the source itself.
Pricing pulled straight from the suppliers, with their permission — the data everyone else is trying to copy.