A research vendor with a fully open testing record and some of the best prices we track on a handful of compounds. Here's our plain read on where they stand for the compounds women research, plus their live pricing straight from our database.
15% off · Code PPL
Every vendor gets the same checks. Each card shows what we found for Double R Labs.
Every product we sampled had a lab report.
We randomly checked lab reports for 8 of their 43 products (19% of the catalog).
A vendor's report page is its own choice of what to show, so we don't stop there. We sample products straight from the store, open each listing's linked report, and check it with the testing lab.
4.5 out of 5 stars
Public reviews are mostly positive.
We look at what buyers say about this store on public review sites and peptide forums.
39 peptides
A wide range to choose from.
We count the distinct peptides they carry. A wider catalog usually means a more established operation.
Cheaper than most
Compared per mg against every vendor we track.
We average their per-mg prices against the market price for the same peptides.
Free shipping $300+
Same-day shipping. Ships from San Diego, CA.
We read the store's own shipping page for free-shipping terms and dispatch times.
One protected way to pay
Keep your receipt, so you can dispute a charge if you need to.
We note every way to pay, and look for payment methods that offer buyer protection. Cards and PayPal let you dispute a charge. Crypto and bank transfers don't.
Some detail on who runs it
A named company, a real address and a way to reach a person.
We look for a named company, a real address and a way to reach a person.
A few surprises at checkout
Hidden fees, forced add-ons, and whether the cart price matches the listing.
We look for hidden fees, forced add-ons like shipping insurance, and whether the cart price matches the listing.
Established
Not much history to lean on yet. New isn't bad, but it's unproven.
We look for a business registration and check when the store's domain was first registered.
A rating is how much independent proof we found, not a verdict on whether you should buy.
A check we couldn't run doesn't count against a store. It's left out of the math. And a vendor can't pay for a better score.
How we vet vendors →Too few app members have starred this store to count yet.
Live per-mg prices from their store. Tap any peptide to compare Double R Labs with every other vendor we track.
35 more at Double R Labs. Each one opens its price comparison.
See our confidence rating for Double R Labs above, pulled live from our review database. Their testing record is fully open, and they're best-priced on a handful of compounds we track. Confidence here comes from the proof we can verify on file, and we recheck it as new batches get verified.
Double R covers the compounds our readers reach for, and often at a good price. They stock SS-31 on the mitochondrial and longevity side, GHK-Cu and the Glow blend for skin and collagen, and NAD+ for the longevity research. The card below pulls their current per-mg pricing straight from our database, so what you see is always live today.
Prices in this market move constantly, so treat any single number as a snapshot. Drop the vials you're comparing into the free PPL tool to see your real per-mg cost side by side before you decide.
Double R posts a fully open record of third-party certificates of analysis publicly. Read the certificate, match the batch number to the vial you're actually buying, and don't assume a certificate somewhere covers the lot in your cart. If you're new to this, our guide on finding quality sources walks through what a real COA should show you, and our peptides for women guide covers where the research actually stands.
The community signal for Double R Labs sits at 4.5 out of 5 stars, a strong read that says most buyers have gotten what they paid for. Read a few of the recent reviews yourself and see if they match your own read.
Shipping at Double R Labs is free once your order clears $300. Same-day shipping is available.
Orders from Double R Labs ship from San Diego, CA.
Use our code PPL for 15% off. It never costs you a penny more, it just sends a small commission our way that keeps this site free.
How We Do This. A confidence rating isn't a verdict on whether you should buy, it's a snapshot of how much independent proof we could find. Double R Labs' rating above reflects its open verified testing record, not just its low prices. Weigh it for yourself, with the live numbers right in front of you.
It's sold for research, and the big human trials haven't been run yet. You knew that, it's why you're reading this and not the label. Vendor details and prices change often, so check with the vendor before you order.
The 10 things to check before you buy a single milligram. Leave your email and it's yours, and we'll write now and then when something is worth knowing. Want to hear when a peptide gets cheaper? Every peptide page has a free price alert under its prices.
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Research use only. Peptide Price Lab is an editorial calculator. Nothing here is medical advice, a recommendation, or a prescription. Consult a qualified clinician before anything that meets your body.