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Is Peptidessciences Legit? No independent lab tests published yet, and 24 verified customer reviews.
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Summarised from 24 reviews
Based on 24 reviews, customers have shared their experiences with Peptidessciences. Some customers have reported concerns about their experiences with this company.
JENNIFER T TORRES
4/9/2026
Expensive, poor quality and service
Tesofensine on back order and they were never going to tell me until I followed up 2 weeks later, I requested Tesamorelin 10mg as a replacement and reconstituted appropriately with 2mL of their BAC water which solidified into a gel less than a weeks later at proper storage. At a low dose of 1mg per day the vial would only last 2 weeks. Very expensive and ineffective low quality peptide. Do not recommend.
Elliott C Younger
3/25/2026
I've been using Peptide Sciences since 2022…
I've been using Peptide Sciences since 2022. IGF-LR3, Testogen, Kisspeptin, PT-141, and as of recent CJC-1295 No Dac / Ipamorelin. Not a once have i had any issues or side effects with any of these. With proper training and eating, my personal health and goals have been met and maintained. Ive loss weight and toned, as well as lower my blood sugar and a1c. Not to mention i have better quality sleep at night. If any of the other reviews that given less than satisfactory reviews, did you honestly try peptide sciences products or was the assumption you would get immediate results?
Josh
3/7/2026
Gone for good
They are so great, they just closed their doors for good. Couldn't have been that great
Miles Mikkelsen
3/4/2026
Worst ever
Worst ever. Do NOT use them
Justin Gorris
2/21/2026
Avoid at all costs
Do not buy from this place. Seriously. Im sitting here with a horrible red rash all over my body. Do not trust this stupid place.
Peptidessciences is a peptide vendor.
Top mentions
JENNIFER T TORRES
Unknown
Tesofensine on back order and they were never going to tell me until I followed up 2 weeks later, I requested Tesamorelin 10mg as a replacement and reconstituted appropriately with 2mL of their BAC water which solidified into a gel less than a weeks later at proper storage. At a low dose of 1mg per day the vial would only last 2 weeks. Very expensive and ineffective low quality peptide. Do not recommend.
Elliott C Younger
Unknown
I've been using Peptide Sciences since 2022. IGF-LR3, Testogen, Kisspeptin, PT-141, and as of recent CJC-1295 No Dac / Ipamorelin. Not a once have i had any issues or side effects with any of these. With proper training and eating, my personal health and goals have been met and maintained. Ive loss weight and toned, as well as lower my blood sugar and a1c. Not to mention i have better quality sleep at night. If any of the other reviews that given less than satisfactory reviews, did you honestly try peptide sciences products or was the assumption you would get immediate results?
Josh
Unknown
They are so great, they just closed their doors for good. Couldn't have been that great
Miles Mikkelsen
Unknown
Worst ever. Do NOT use them
Justin Gorris
Unknown
Do not buy from this place. Seriously. Im sitting here with a horrible red rash all over my body. Do not trust this stupid place.
Vaida Blue
Unknown
Wrong web address there. This is a super established peptide company out of Nevada for over a decade. For a peptide spot that’s unheard of. This is NOT a compounding pharmacy, so those reviews who are trying to bash them for not doing what a compounding pharmacies do - wrong business. Go pay triple for prescription for the same product plus pat the functional dr visit for the scrip. Anyways, I’ve used them on and off for probably 8 years and haven’t had (yet) a bad experience. Granted I my own lack of education on some peptides got me to throw away a batch of crystalized NAD+ (that in itself verifies it was a real product), but other than that I hope they stick around for a long long time since you can’t really trust these new peptide companies that disappear as fast as they appear. These guys have been going strong and consistent.
SUSAN JACKSON
Unknown
I bought BPC157/tb500 blend and cjc/ ipam blend. Did great for a couple of weeks then all of a sudden the peptides started irritating my skin so bad I had to stop taking it. Now I have 2 ugly sores on my stomach and on my arms it feels as if the wolverine blend didnt dissolve and I have 5 clumps up under my skin.
Brian Bwaite
Unknown
Customer service is absolutely horrible. Never a trust a company that treats customers in this way. Makes me feel like the whole company is a scam. STAY FAR AWAY
Jamie Elliott
Unknown
Retatrutide didn’t work. Only gave joint pain. I think it’s sugar injections from how much inflammation I have in my joints. Didn’t get any symptoms that other people get from the Reta like nausea or fatigue. Don’t rate this company. Wish I could give it no star ratings.
Walter Baen
Unknown
I hope to clear up some confusion here. Peptides (with an s at the end) Sciences is not the same as Peptide(no s at the end)Sciences. Peptide Sciences is a well established company with great reviews. I hope this helps someone.
Showing 1–10 of 24 reviews