Great customer service/experience…would…
Great customer service/experience…would recommend 100%…
By JJS
Saturday, November 7, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
169 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 The Fair Hearing, with an average rating of 4.9 out of 5.
169 approved reviews, newest moderated first
Great customer service/experience…would recommend 100%…
By JJS
Second order from Idun. The Reta was packed well they included a coa, great prices, quick delivery, great quality it does what it’s supposed to. Looking forward to place another order soon.
By Ernie S.
Shipping is great
By Daniel S.
Quality product and fast turnaround.
By CSO
Verifiable 3rd party COA's. Incredible pricing on 5 and 10 vial packs. Product arrived quickly and had no problems reconstituting.
By Calif K.
The entire experience with IDUN is always great. From ordering to shipping times and customer service response times. Verifiable paperwork with every order. I have zero complaints.
By Timothy C.
Honestly, this is my second review of IDUN. After around six seperate orders I felt I needed to write another. This company is amazing. Packing and shipping with a tracking number happens same day or the next if it's too late in the day. The care they show in individually bubble wrapping any small or delicate items is very much appreciated. On top of that their customer service is exceptional. Emails and questions are answered very quickly. I've had nothing but positive experiences with their products and their pricing is just as impressive as their customer service. 5 stars might not be enough in my opinion. I have orderd again and will continue to. I recommend IDUN to everyone.
By Joe
Great overall experience!! Will buy again!!
By Stephanie C.