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.
What they carry, and why it matters for you
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.
The COA picture
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.
What the community says
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
Double R Labs ships from within the US, and shipping is free once your order clears $300. They also offer same-day shipping.
Current offers
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.
All content on Peptide Price Lab is for informational and research purposes only. Nothing here is medical advice, and research peptides are not intended for human use. Vendor details and prices change often, always verify directly with the vendor and consult a licensed healthcare provider before making any decision.