Proven Peptides

Established US peptide vendor with verified customer reviews and lab results.

What Customers Mention

arrivedpackagingdaysfinebatchtookresearchquality

Reviews

Nov 16, 2025
Solid TB-500 source
Adam Cole

Ordered TB-500 for research and it came quickly. Packaging was discreet and professional. COA looked good, though I wish they included more detailed batch info. Overall happy with the purchase and would order again.

Nov 9, 2025
transparency is unmatched
Stephen J.

They publish lab results for everything in stock. I checked the YK-11 report before ordering and it matched what I received. Reordering for sure.

Nov 1, 2025
clear labeling
Ronald H.

Vials were labeled properly with concentration and batch number, which makes life easier. Decent prices too.

Oct 23, 2025
shipping took forever
Curtis C.

Ordered the RAD-140 and it sat in transit for almost two weeks. The product was fine when it finally showed but the wait was frustrating.

Oct 15, 2025
my go-to source
prep_jenna

Third order with them. Consistent quality, always have a COA on file, shipping has never let me down.

Oct 6, 2025
good experience overall
Dennis H.

Cardarine came in well packaged and the liquid was clear with no sediment. Took five days to arrive. Happy with it.

Oct 1, 2025
Good experience with a few minor issues
Lisa Chang

Been using Proven Peptides for a few research compounds - specifically their GHK-Cu, CJC-1295, and MK-677. Quality seems solid based on the COAs they provide and our initial testing. My only complaint is that the website checkout process was a bit clunky and took longer than expected. Also had to reach out twice about shipping updates before getting a response. That said, the actual products arrived in good condition and appear to be exactly as described. Pricing is fair for what you're getting.

Sep 27, 2025
actually answer the phone
ryan_study

Had a question about an order and someone actually picked up the phone. You don't get that from most of these vendors. Solid.

Sep 14, 2025
fine but pricier than I expected
Felicia W.

Product itself was fine and the COA was there, but the per-ml price is a bit steep compared to a couple other places. Shipping was quick at least.

Sep 2, 2025
monthly lab reports sold me
Melissa R.

What got me is they post fresh third-party purity tests every month, not some two-year-old PDF. Ostarine arrived sealed and labeled clearly.

Aug 21, 2025
fast shipping
Nicole S.

Package showed up in four days, bubble wrapped well. No complaints.

Aug 9, 2025
COA matched the batch
Keith P.

Ordered the LGD-4033 and the certificate of analysis lined up with the batch number on the vial. That kind of transparency is rare. Will reorder.

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Vendor Info

StatusUnclaimed
WebsiteVisit
Reviews32
Products8
Lab Tests0

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