Shipping
Many reviewers describe shipping as fast and deliveries as on time. Others report delays, lost parcels, or unresolved carrier problems.
See 31 reviews about Shipping
Written by AI from the 150 most recent reviews
Most reviewers praise customer service, product quality, and fast shipping. Some report damaged or delayed parcels, poor packaging, or problems getting help or a replacement. Reviewers also mention easy ordering, fair prices, and testing documentation.
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Many reviewers describe shipping as fast and deliveries as on time. Others report delays, lost parcels, or unresolved carrier problems.
See 31 reviews about ShippingMany reviewers praise helpful, responsive service. Some report no response about lost or damaged parcels, no replacement offer, or an undeliverable support email.
See 39 reviews about Customer serviceMany reviewers praise product quality, and some mention testing standards or COAs. Others report low purity or a product arriving dried and brittle.
See 35 reviews about QualityReviewers describe ordering and checkout as easy. One reviewer reports receiving the wrong product, which customer service corrected promptly.
See 14 reviews about OrderingSome reviewers praise fair prices, discounts, and sale prices. One reviewer was disappointed by an additional shipping cost.
See 12 reviews about PricingHart J.
Verified purchaseThey don’t respond when packages are lost or products are damaged. It’s a numbers game.
Mitch
Verified purchasePros: Fair pricing (with discount code), good selection of products, COA's included testing for endotoxins and heavy metals (not all suppliers go this far with their COAs), easy to order and pay online, shipping speed was ok. Only con: Shipping packaging in my opinion was mediocre -loose vials in a shipping style envelope (could have broken easily with carrier mishandling) and no real temperature control measures.
AARON B.
Verified purchaseI had a stolen order worth more than $800. The company was VERY generous and sent me a make up order 10 days later. WHERE ELSE DOES CUSTOMER SERVICE LIKE THAT EXIST THESE DAYS? I'm a customer for life. 24 hour customer support, a wide range of quality research compounds & quick turn around times also helped earn my continued business as well. HAVE FedEx hold your package at a local storefront.
Engineered for elite research, our products combine pharmaceutical-grade quality, with rigorous independent testing!
2,693 published reviews
Showing 1–10 of 2,693 reviews
Michael W.
Verified purchaseMarc F.
Verified purchaseLaura B.
Verified purchaseJoyce W.
Verified purchaseVery satisfied with this supplier. Shipping is always efficient. Will continue to purchase research compounds for research use only.
Linda Z.
Verified purchaseI missed the discount over the weekend. I’ll watch for next one, hopefully coming soon.
Amy B.
Verified purchaseRonald F.
Verified purchaseAaron R.
Verified purchaseEddie L.
Verified purchaseStephen S.
Verified purchaseThe best Peptide company I’ve ever dealt with. 5 stars for sure.

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2,693 published reviews
Showing 931–940 of 2,693 reviews
Danielle T.
Verified purchaseI will only buy from Certified Peptides, even if there are cheaper options available. I was initially worried about ordering due to the lack of quality control in the industry, but with this company, I feel confident. Their customer service is outstanding. They never made me feel foolish for asking questions or dismissed my concerns. They are very transparent with information. I waited to write this review until I had purchased several of their products, and they've maintained consistent quality. I’m very satisfied and will choose no other source.
Rebecca C.
Verified purchaseI have tried a few different companies and by far this is the best company! They have real humans that will actually talk to you and answer your questions and they break everything down for you and make sure you have access to it all. Hands down this will be the only company I ever use. And their prices are great. I am so happy I found them.
Daniel H.
Verified purchaseAlways arrives on time. Price is good.
Jacob H.
Verified purchaseFast shipping, communication throught the entire process. 2nd time ordering and zero issues!
Kaizen K.
Verified purchaseThe transparency here is top-tier. As someone who relies on data-driven decisions, having immediate access to the Certificate of Analysis (COA) is a huge factor in building trust. Beyond the data, the customer service is seamless, the chat is responsive, and you actually get through to a person who can help. The entire process is intuitive and clearly designed with the customer’s peace of mind in mind. Highly recommended for those who value both quality and accountability - Kaizen Kenny
Jeff E.
Verified purchaseThey always sell good products. I have never had a problem with their products. I will be buying again
Benton S.
Verified purchaseMichelle S.
Verified purchaseThis is a fantastic company. Great sales and superb customer service.
David G.
Verified purchaseMy go to peptides supplier. Good prices, super fast shipping. I have called them with questions and got a real person. I like the personal messages from them.
Karen H.
Verified purchase