Shipping
Many reviewers describe shipping as fast, prompt, or on time. Others report delays, lost parcels, or extra shipping costs.
See 35 reviews about Shipping
Written by AI from the 150 most recent reviews
Most reviewers who left comments praise customer service, product quality, and fast delivery. Some report delayed or lost parcels, poor responses to shipping problems, or concerns about packaging and product condition. Buyers also mention easy ordering, fair prices, and testing documentation.
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Many reviewers describe shipping as fast, prompt, or on time. Others report delays, lost parcels, or extra shipping costs.
See 35 reviews about ShippingMany buyers praise helpful, responsive service. One reviewer says the company did not respond to reports of lost or damaged parcels.
See 35 reviews about Customer serviceMany reviewers praise product quality. Others report low purity or concentration, or products arriving dried and brittle.
See 40 reviews about Product qualityReviewers describe ordering as easy and the transaction process as simple. One buyer reports receiving the wrong product, which customer service corrected promptly.
See 11 reviews about OrderingSome buyers praise careful or professional packaging. One reviewer calls the shipping packaging mediocre, and another reports an open cap on an order.
See 8 reviews about PackagingHart 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.
Kevin
Verified purchaseI've got several research compounds such as RC-01, tesa, and nad+. They have all been great, and their customer service is awesome. I did receive the wrong research compound once, and hopped on a chat with customer service, and they got me the correct one in the mail right away. Their prices are awesome too compared to the other companies out there, some of which are subscription based.
Engineered for elite research, our products combine pharmaceutical-grade quality, with rigorous independent testing!
2,780 published reviews
Showing 1–10 of 2,780 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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2,780 published reviews
Professional service and quality products that are hplc tested with the detailed report available to view.
Jennay
Verified purchasei can't write a review as my shipment is stuck in transit
John
Verified purchaseReally solid company, orders are processed quickly. So far, very happy with everything I've received.
Heidi
Verified purchaseFrom start to finish and even in between Certified Peptides bends over backwards to help you in anyway I will always use them for our peptide needs and will recommend them with extreme confidence.
Robert
Verified purchaseGreat customer service at anytime of the day! Product arrives when scheduled.
Karla
Verified purchaseProfessional, quick response and product arrived as described
Mychal
Verified purchaseGreat service and fast shipping! Really happy with them
Beau
Verified purchaseFast shipping. Order complete. No issues. Will order again.
Scott D.
Verified purchaseExcellent customer service
RODNEY
Verified purchaseReally solid experience with Certified Peptide. Ordering was easy, checkout was smooth, and everything shipped quickly with no issues. Packaging was clean and professional, and the product showed up exactly as expected. Communication was good throughout the whole process, which I appreciate. You can tell they care about quality and doing things the right way. No stress, no surprises. Overall, great product and a hassle-free transaction. I’d definitely recommend Certified Peptide and will be ordering again.