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Lees wat reviewers zeggen

Beoordeeld met 5 van de 5 sterren

Very reliable company. Each bottle has a test number associated with the batch and a QR code for the results. All batches are checked to ensure they actually contain what they say and also for endot... Toon meer

Beoordeeld met 5 van de 5 sterren

Their product is tested and safe. It also came super fast, much faster than we will get it from a telehealth and no hoops to jump through as well as way more affordable!

Beoordeeld met 5 van de 5 sterren

I have been skeptical to order from companies that are on the newer side. These days new companies are popping up left and right in this particular business. After seeing numerous videos put out by th... Toon meer

Beoordeeld met 5 van de 5 sterren

There is nothing to say that I don't like about this company! From my first discovery and purchase from this company Peptira has been nothing but greatness. There standards are golden and keep recachi... Toon meer

Bedrijfsgegevens

  1. Biochemisch leverancier

Geschreven door het bedrijf

Peptira is a U.S.-based peptide and research supply company built on one simple mission — to deliver the highest-purity peptides, research chemicals, and laboratory materials with complete transparency and integrity. Every product is HPLC-verified for ≥97% purity and traceable to a third-party Certificate of Analysis (COA) so you always know exactly what you’re getting. Our testing partners include respected independent labs, ensuring accurate results, verified purity, and full transparency. We’re proud to be a researcher-driven company that puts quality and service first. From fast, reliable shipping to responsive customer support, Peptira has earned the trust of thousands of researchers across the United States. We believe in honesty, community, and consistent quality — not hype. Whether you’re buying a single vial or restocking your entire lab, Peptira is committed to providing authentic, lab-tested research materials you can depend on. Why researchers choose Peptira: ✅ U.S.-based fulfillment and customer support ✅ COAs and purity reports for every batch ✅ Transparent business practices ✅ Same-day or next-day shipping on most orders ✅ Trusted by researchers nationwide If you’re looking for a trusted peptide supplier in the USA, or searching where to buy research peptides online, Peptira stands apart for quality, reliability, and integrity.


Contactgegevens

4,6

Uitstekend

TrustScore 4.5 uit 5

238 reviews

5 sterren
4 sterren
3 sterren
2 sterren
1 ster

Heeft 71% van zijn negatieve reviews beantwoord

Reageert doorgaans binnen 24 uur

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Beoordeeld met 1 van de 5 sterren

Retatrutide not working

I too thought I was tripping when I read a review on here from Dec 9th that their retatrutide was not working. I increased my dose and still can barely feel anything. I too bought the 3 kit vials and I am disappointed. I thought it was just me at a stall already, but thanks to another reviewer I’ve concluded it just isn’t me and is the product itself. From reading Peptira’s response to the other reviewer, it sounds like they will blame customer diet and etc. Will not be shopping here unless they make it right. I’ve had way better results with my other vendor, tried this one since they had a sale.

27 december 2025
Review zonder uitnodiging
Logo Peptira

Antwoord van Peptira

We appreciate you sharing your experience. All Peptira products are research-use-only and are independently tested for identity, purity, peptide content, and endotoxins(replicated twice) prior to release. We do not offer material that fails specification, therefore there is no question as to the validity of our products.

As you discussed above, when research results are inconsistent, it is most often due to external research variables (prior exposure, research protocol design, handling, etc).

Best regards,

Beoordeeld met 1 van de 5 sterren

8 of the 10 vials had lyophilized powder broken

I ordered Nad1000 x 10 vials 8 of the 10 the lyophilized powder was shattered or chipped which could indicate a problem in the lyophilize process. Wrote the company and they responded it was fine. Now I have to pay for testing and lose a vial of product to verify its fine. Peptira sells you insurance and doesn't stand behind it. I suggest you go to another peptide company. Peptira I buy thousands of research peptides a month and I really wanted you to be my supplier but I can not do business with you when you refuse to stand behind your insurance. A simple google search will explain how broken pucks could be a quality issue.. The truth is you don't know anymore than I do and it needs to be tested. Profits should not come before safety that is how people could die.. Facts

22 december 2025
Review zonder uitnodiging
Logo Peptira

Antwoord van Peptira

Appreciate you sharing your experience. We do want to clear up one important misconception here.

A cracked or “shattered” lyophilized puck does not affect the peptide at all. This is a common cosmetic issue caused by shipping vibrations and handling and has zero impact on purity, potency, and has nothing to do with lyophilization process itself. The peptide remains fully intact and usable for research.

Our shipping insurance covers loss or damage that affects product integrity or usability. Since the peptide itself was not compromised, it didn’t qualify as an insurance claim, but that doesn’t mean we don’t stand behind our product. Every batch is independently tested before release.

We understand the frustration if you’re used to seeing perfectly intact pucks, but rest assured the product is in fine condition. =)

Beoordeeld met 1 van de 5 sterren

Questionable Potency Compared to Other Vendors

I am not impressed with Peptira's retatrutide- it feels completely different than a much less expensive and fancy vendor. I even upped my dose with the Peptira reta and felt nothing. I paid almost $200 for 3 vials and am sorely disappointed. Needless to say, I am staying away from these fancy overpriced sites and going with the more modest ones. I really hope Peptira can rectify my situation, as I see I am not the only person having issues with potency. I have also spoken with other people who have purchased retatrutide from this company and have a similar experience. Hopefully this company cares about making it right over profit. A "thanks for the suggestion" is far from improvement. Check out MRP (modern research peptides) and CoffeeandPeppers for better quality retatrutide at a much lower price, without all the gimmicks. I cannot speak to anything else from this company as I have only ordered the retatrutide. I will come back to update my review after I speak with the company. Thanks for reading.

9 december 2025
Review zonder uitnodiging
Logo Peptira

Antwoord van Peptira

Hi there, and thank you for taking the time to share your feedback. We take all research concerns seriously and appreciate the opportunity to clarify a few important points.

All Peptira products undergo full third-party analytical testing prior to release, including HPLC and MS verification. Because of this, there is zero concern regarding the legitimacy, purity, or potency of the reta-GLP3 supplied for research purposes.

In nearly every case where a researcher reports unexpected results, the variable is not the compound itself but something within the research environment such as the research subject’s diet, caloric intake, stress levels, or time spent on the hamster wheel. Even small changes in these variables can dramatically influence observed outcomes.

Beoordeeld met 5 van de 5 sterren

Peptira 100%

Amazing company for my research!! I have bought quite alot and still waiting on more bpc,tb500, mots-c works wonders so they are high quality only peptide i need to try after i finish my current glp3 vile , is peptiras glp3 i hope i can get all the benefits from my current hormone clinical single vile glp3 ($400) ..so i can continue buying it from them and save some money …Mr peptira keep doing such amazing job…thats another thing i love about this company he shows his face in social media and him and his team are very professional

1 december 2025
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

This is not my first order

This is not my first order, and I am never disappointed. Shipping is quick and free if you order $250 or more. The communication is friendly and instantaneous. The products are amazing quality. I will be returning because I know this is a company I can trust.

21 november 2025
Review zonder uitnodiging
Beoordeeld met 5 van de 5 sterren

Very satisfied!

Very satisfied with quick shipping and delivery, pricing, and ease of use! Quality products as well! Will order again!

30 oktober 2025
Beoordeeld met 5 van de 5 sterren

Reliable, transparent, efficient.

Peptira has shown time and time again how transparent they are in every aspect of the business; from the way they handle the ins and outs to the COAs for every product. They are quick to answer questions and to resolve issues. By far some of the best customer service I have received and that’s coming from someone who has been in customer service for 20+ years.

30 oktober 2025
Beoordeeld met 5 van de 5 sterren

Trustworthy quick and reliable

I have been skeptical to order from companies that are on the newer side. These days new companies are popping up left and right in this particular business. After seeing numerous videos put out by the owner and receipts backing his claims I decided to go for it. I couldn’t be happier. Customer service is top notch, the quality of product is excellent and as advertised. Shipping is FAST

30 oktober 2025
Beoordeeld met 5 van de 5 sterren

Peptira, keep it up!

It was delivered in proper packaging to reduce risk of breaking during shipping.
I liked their prices over competitors although the peptide I got was 97%, when on the website it said 99% purity for the vial.

30 oktober 2025

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