“Everything about my experience with Certified-Pep was positive. Ordering was easy; Shipping was fast; Most Important... It Works! I am VERY pleased & will be ordering again. If you're on the fence & trying to decide ... go for it! You'll be happy you did. Thanks Certified-Pep!”
“I can't say enough about Certified! I had an issue with a peptide and reached out to the company. This was during Not only Christmas and New Years, but they were going through a catastrophic flood and weather event. Three strikes going against them and they performed flawlessly, Literally. We have a 3 hour time difference and whenever i e-mailed Jason he got back to me in MINUTES. They have a ton of 5 star reviews and now I know why! Keep it up, you guys/girls are the best!”
“Absolutely love this company and its products. The prompt response to my many questions on the chat are wonderful. You hav a customer for life with me.”
“Love Certified-Pep, ordering is easy and everyone is extremely helpful and knowledgeable about the products. Shipping was lightning fast too. Highly recommend!”
“"I've been using Certified Peptides for Retatrutide and a few mimetic HGH products like CJC-1295 and Ipamorelin. I don't have a lab to confirm quality but based on my 3-months of experience with the company, their ""for testing purposes only"" products seem to be legit. Especially the RETA product - it clearly works and seems to be from a good source. They're somewhat local to me (WA State) and I'm confident that they'll make me whole if there's ever a problem. There are several good peptide labs; this is one of them."”
“The order process was quick and efficient despite the holidays and bad weather. Ordered on 12/19, shipped on the 20th, delivered on the 24th. Products were in good shape. Research underway, will update on results when complete Update: 1/16/26: research is going very well, products are working as expected, actually better than anticipated”