Fast delivery - glp1-t took a day to kick in compared to zepbound but in my experience has been just as effective being that I’ve taken the name brand in the past. Came with bacterial-static water to... See more
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At Penguin Peptides, we are dedicated to providing high-quality research peptides and GLP-1s exclusively for scientific research purposes. Our products are strictly not for human or animal consumption, catering to researchers seeking reliable compounds for their studies. Each peptide comes with a fresh Certificate of Analysis from a reputable, U.S.-based third-party laboratory, ensuring 99%+ purity across our entire catalog. We take pride in our commitment to quality, transparency, and customer satisfaction, making us a trusted source for researchers worldwide. Explore our extensive range of peptides at penguinpeptides.com, where you’ll find products designed to meet the rigorous demands of scientific investigation. We’re always eager to collaborate with new researchers interested in analyzing our compounds and advancing their studies. For any inquiries, our team is reachable at support@penguinpeptides.com, though please note we cannot assist with peptide reconstitution or application guidance due to the research-only nature of our products. We understand the importance of efficiency in research, which is why all orders are processed and shipped within one business day, ensuring prompt delivery to keep your projects on track. At Penguin Peptides, we stand behind the purity and quality of our products, offering researchers peace of mind with every purchase. Whether you’re conducting cutting-edge experiments or exploring new research avenues, we’re here to support your work with premium peptides backed by rigorous testing. Visit our website today to learn more, browse our catalog, or contact us for further details. Join the growing community of researchers trusting Penguin Peptides for their scientific needs!
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Replied to 82% of negative reviews
Typically replies within 1 week
Very fast delivery and very fast…
Very fast delivery and very fast response to emails!
Pay closer attention!
I’ve ordered from you before and had no issues.. the product was great. This last order though you guys sent me the wrong size bottle. I paid for a 36iu and got the small size bottle. I would really like to receive the product I ordered and paid for.

Reply from Penguin Peptides
Penguin Peptides is exceptional
Penguin Peptides is exceptional, top-tier quality for all of your research needs. True professionalism, and fast delivery every time! Their products are consistently impressive, and the value is unbeatable thanks to their generous discount codes and purchase point earning system and complimentary T-shirts. If you want great quality, quick service, and real savings, Penguin Peptides stands out amongst other companies!
Communication is top tier.
Communication is top tier.
Shipping/packaging is top tier
B-12 is top tier
Will report back once I start the GLP1-T in a little over a week
Super impressed thus far!
Thanks!
Effective
The vial actually contained what it said not like some other sites that just sell fake powder in vial, thanks penguin for being real
They have great service and great…
They have great service and great prices.
Put pep in your step with Penguin Peptides
Easy to navigate site. Quick delivery. Packaging was secure, no damage to order.
Very fast shipping and top quality…
Very fast shipping and top quality packaging. I've ordered from a lot of different peptide companies and none have taken such good care of their products as Penguin does in the shipping. If they offer it, everyone wants to charge you for shipping with an ice pack but Penguin shipped in a case with an ice pack for no extra charge. I'm a lifelong customer for these guys!
Good stuff
Fast delivery - glp1-t took a day to kick in compared to zepbound but in my experience has been just as effective being that I’ve taken the name brand in the past. Came with bacterial-static water to mix which was a huge plus. Recently injured my shoulder - so if Mr.Santa Penguin wants to send out some bpc-157 to try out that would be amazing!
Nothing but the best!
This was my first time ordering and everything was quick and seamless. I appreciate the coupons the most in this world we have made . The product is top tier and what a relief you just don’t know anymore. The free surprise in my box made my day! Thank you I really appreciate it. The pamphlets on what and why yall do this was amazing. Looking out for penguins. Good work Penguin Peptides!!
Fast shipping and great service
Great customer service and fast shipping. The answered my email within minutes and the product is good.
High Quality Products
I purchased several of the 50mg Tirz. I sent one vial out for my own testing and it came back at 53.6mg and 99.95% pure. Wow, these are really great test results, and the purity is excellent! I've been using the Tirz for a while now and it's working perfectly. The owner was very responsive to my questions and sent lots of free goodies with my order.
However, I will say that there are no batch numbers on the vials. Also, the owner told me that they don't sample test each and every batch due to cost. This is the reason I sent one of my vials out for my own testing, just for piece of mind. I do think this is a great vendor and I would recommend. I just hope they're able to start printing batch numbers on the vials and performing sample tests of each batch in the future.
Great peptides!
My peptides arrived in a timely manner, everything was in the order and I love them! Will be ordering more from this company!
Prompt Shipping
Great prices
Great prices, great customer service, and fast shipping. I love the point system and if you spend a little you get free product. I will continue to order. Thank you.
Very very happy with my experience here…
Very very happy with my experience here we Penguins Peptide- it was easy to order and their customer service is what really was impressive to me- I am a first time buyer and I went with the deal they had going with spend $150 get 30%off and a free peptide - but I noticed I never got my free peptide, I emailed them and told them what happened and literally within 6 hrs maybe even sooner, someone got back to me was able to see my purchase and knew I never received it and corrected the problem right away and apologized and sent out my free peptide, I am very pleased with how fast and easy and helpful they were it wasn’t lik I had to jump through hoops for it!! Will DEF be ordering from them again!!
Thank you!
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