Paul W.
Great customer service
Great customer service

IDUN Peptides supplies high-purity research peptides, with every batch independently third-party tested and backed by a Certificate of Analysis. We offer free same-day shipping and US-based support that is there when you need it.
IDUN Peptides (idunpeptides.com) has 169 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
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Paul W.
Great customer service
KRISSINDA S. T.
Fast shipping and easy ordering.
Robert
Delivered on time
✌🏻
* Edit: I really appreciate the reply with positive attitude from IDUN so I edited this review and gave a 5 star rating instead. A company that actually listens to customers and took actions? Amazing! IDUN continues to impress me. I feel they really do go above and beyond for their customers. I will definitely being placing more orders. Hope they'll be carrying even more peps like ghk-Cu/KPV blend. * Original review: After having a good test run experience first time around, I came back and planned to purchase other peps and I was so surprised that the prices were raised drastically across the board. It's incredibly disappointing because I actually spent time writing a glowing review before this. Prices are no longer competitive so there's no reason for me to buy from here again.
Response from IDUN PeptidesAug 18, 2026
We read this, agreed with it, and jumped into action. The Kit Up & Save Summer Sale prices that expired over the weekend are back, permanently. We're small enough that a customer can change our pricing in days instead of quarters, and honest reviews like yours are how that happens. Thanks for telling us straight.
rich M.
I've emailed them a couple times with questions and their communication is over the top good. The products are great and I love that they reward you with free goodies like BAC water. It's not like I had to spend an exorbitant amount to get these goodies either. Best prices I've seen from a well-respected research peptide provider!
ARM
RT10 and TSM10 ordered. Very fast shipping in the USA. I think it arrived within 2-3 days of ordering. Prices are some of the best for US based kits. I have pinned both, no issues at all, products seem to be working as intended.
Chris G.
PEPS are fine. Shipping has been annoying in first 2 orders. Paid for extra shipping came in 5 days. Didn’t pay and had 2-3 shipping turn into 6 days.
Response from IDUN PeptidesAug 17, 2026
Thanks for the straight feedback, Chris. The first order landed on schedule; the second we upgraded to air express at no charge, but our carrier slipped a day on pickup and the weekend did the rest. If you want to talk shipping before your next order, we're at [email protected]
Jeremy
Fast shipping and free goodies with each purchase . Love this company . No complaints about the quality of the products either . All as expected.