Shipping
Many buyers report fast or on-time delivery, sometimes with tracking. Others describe delayed parcels or shipping problems, and one buyer says no replacement was offered after carrier issues.
See 42 reviews about Shipping
Written by AI from the 150 most recent reviews
Buyers often praise customer service, quick shipping, easy ordering, and competitive prices. Many describe products as high quality and mention COAs or testing. Some report delayed shipments, packaging concerns, a wrong item, or difficulty getting a response about a return.
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Many buyers report fast or on-time delivery, sometimes with tracking. Others describe delayed parcels or shipping problems, and one buyer says no replacement was offered after carrier issues.
See 42 reviews about ShippingMany reviewers praise helpful, professional support and quick responses. One buyer reports that the listed support email was undeliverable, and another says there was no response about a return.
See 36 reviews about Customer serviceBuyers often describe ordering and checkout as easy and smooth. One reviewer reports confusion over applying a discount, and another says a wrong item was promptly corrected after contacting support.
See 21 reviews about OrderingMany buyers praise product quality, and some mention batch testing or COAs. One buyer reports that an item arrived dried and brittle on two orders, with a cap open on one.
See 33 reviews about Product qualityReviewers mention fair or low prices, discounts, sales, and good value. One buyer was disappointed by additional shipping costs, and another describes confusion between two discount offers.
See 16 reviews about PricingIke P.
Verified purchaseVery impressed with the quality, CP continues to be a reliable source for the highest quality products. I would continue to recommend them because the quality of the customer service as well as the quality of the products are exceptional.
Michael P.
Verified purchaseStill waiting - delay delay - waiting. FedEx showing “duplicate” parcels same tracking #?
Krystal B.
Verified purchaseI like the research compounds, but I ordered the wrong one and have been trying to get a return for a while now with no response.
Engineered for elite research, our products combine pharmaceutical-grade quality, with rigorous independent testing!
2,627 published reviews
Showing 1–10 of 2,627 reviews
Kimberly R.
Verified purchaseNathan L.
Verified purchasevincent M.
Verified purchasethe most honest caring company i know.There the best.u can buy n have no problems there great.
Nick B.
Good product worth buying
Kalifter
Verified purchaseMitch
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.
Richo G.
Verified purchaseGreat product for research work!
Bradley H.
Verified purchaseAndrew M.
Verified purchaseSuzan J.
Verified purchase
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2,627 published reviews
Showing 1,991–2,000 of 2,627 reviews
Greg S.
Verified purchaseGreat company! Competitive pricing and fast shipping makes Certified peps my go to for my peptide needs. The owner is responsive, even through text, he helps get any issue resolved immediately! The packaging is top tier, ensuring your order gets to you without any damage. Highly recommend Certified Pep!
Mammas
Verified purchaseFast, with great communication!
Linda P.
Verified purchaseHave ordered several times and will continue to order! Products are good and customer service is even better! Always talk to a real person!! Happy shopping!!
Ashley J.
Verified purchaseI’m so happy I found this company! They have outstanding customer service ! Really EVERYTHING about them is outstanding! I will continue to be a repeat customer:)
Shelley C.
Verified purchaseExcellent experience. Pricing is clear and transparent, and the staff is always helpful. Orders are delivered quickly with no delays, and I’ve never had to worry about scams. The products are reliable, with purity documentation available. Highly recommend!
Joshua M.
Verified purchaseCertified peptides and Jason are amazing! I had a problem with my order and Jason resolved it no questions asked! I've never had a company be so committed to great customer service like certified peptides! Hands down best customer service I've ever experienced in my life! I will definitely continue to shop with them!
Douglass M.
Verified purchaseCustomer service 5* Delivery Speed 5* Product Quality 5*
Dee
Verified purchasePLEASE READ THIS HONEST REVIEW I'll keep this short but informative. I rarely leave reviews unless a product or company truly stands out — and this one did! While there were a few hiccups after I placed my order, Jason was quick to step in and resolve everything. His support was outstanding, and every issue was handled promptly and professionally!! I'm now a loyal customer and truly appreciate the excellent customer service I received. I HIGHLY recommend this company!!
Ash
Verified purchaseI've ordered from Certified-pep.com multiple times. Not only do they have the best prices, the team is amazing to work with. If I ever encounter a problem checking out, they reach out right away and help. Any questions, they are right there!
Dell
Verified purchase