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Prime Lab PeptidesReviews 1,277

Reviews 1,2774.9

Research-use-only peptides · Miami, United States

Review summary

Computed from all 1,272 archived reviews — not written by us.

96% of the 1,272 customers who left a review rated their experience 4 or 5 stars. The subjects they raise most often are shipping speed, ordering experience and product quality. Product quality is the most consistently praised (4.92 average across 336 reviews mentioning it). Ordering experience draws the most mixed feedback, at 4.71. The 27 reviews rated 1 or 2 stars are kept in this archive and can be read using the rating filter.

Shipping speed4.90

813 reviews

Ordering experience4.71

423 reviews

Product quality4.92

336 reviews

Customer service4.87

259 reviews

Pricing4.92

242 reviews

Packaging4.79

70 reviews

Based on these reviews

Jeremy Mock

US ·1 review

Very helpful with information. Quality product and fast shipping. The staff was also very responsive when we asked some questions.

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Jackie Hansen

US ·1 review

Only giving a 4 because I haven't started my research yet. Ordering and shipping were amazing! All items were in great condition and nicely packaged. So far I do recommend PrimeLab Peptides.

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Nicole

US ·3 reviews

Highly satisfied with my experience with Prime Labs. I truly appreciate how detailed and informative their peptide descriptions are, it made understanding the products easy and reassuring. The ordering process was quick, simple, and hassle free. Shipping was incredibly fast, and the research product works fantastic. The pricing is also very reasonable and fits well within my budget. I highly recommend Prime Labs!

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Sam Henry

US ·1 review

Reasonable prices - would hope for more promos considering how much we have bought for our research, but great shipping and customer service. Overall, highly recommend!

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Dawn McKinzie

US ·1 review

The process was easy as well as the instructions on and about the products offered. Choosing the right product, ordering, checking out and shipping also no problem. Delivery was quick with the QR codes right on the box for easy access and reinforcement of instructions. Wonderful experience & don't forget the great discounts offered!! Thank for your research.

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Tarah Vantellman

US ·1 review

Love the product lost 20lbs already and feeling good low side effects. Shipping is fast and friendly. Iv been recommending this to all my friends

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Ericka Z

US ·1 review

Great experience overall! There is a wide variety of products available to review, and each listing includes clear descriptions and easy-to-follow directions. The entire process is seamless, from selecting products to checking out. Shipping is prompt, and tracking information is readily available, making it easy to monitor orders every step of the way. Highly recommend!

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Amir Jammal

US ·1 review

Product has always arrived on time or earlier. I have only ever had one issue with a product getting lost in transit and to my surprise they were very communicative. They even gave me a new shipment after they found that the deliverer lost the order. Will definitely continue to use prime lab

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Sheila

US ·1 review

Delivery is fast; I receive my product a few days after I order it. I have been taking Retatrutide for 4 months now and have lost 40 pounds! I am so happy with the results.

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Marcelo Tadeu Copini

US ·1 review

The entire purchasing experience exceeded my expectations. The communication was excellent from start to finish. Their customer service was professional, responsive, and genuinely committed to solving every question quickly. The products arrived well packaged, professionally sealed, and exactly as ordered. The quality of the packaging and presentation gave me a great deal of confidence. Based on my experience, I can confidently recommend Prime Lab Peptides for both their outstanding customer service and overall professionalism. I will definitely order from them again on my next trip to the United States.

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Holly Volkmuth

US ·1 review

So far, so good. Ordering was easy, shipping was upgraded for free, the packaging is great, and pleased with my research materials!

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Heather Green

US ·1 review

The product was easy to order and priced very competitively! The shipping was extremely fast which was much appreciated. I would definitely order from this company again!

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Fiorella Castañeda

US ·2 reviews

Mala porque he pagado el producto y mas de 9 dias no me entregan el producto ni atienden mi queja Siento que ka calidad e intensidad del producto en los envios iniciales era bueno y ahora no Parece agua

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Rayssa Cristina

US ·1 review

Produto excelente! Fiquei muito satisfeita com a compra. A entrega foi rápida, o produto chegou muito bem embalado e exatamente como descrito. Recomendo!

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Company details

  • #1 of 16 best companies in Research and Product Development
  • #2 of 29 best companies in Biochemical Supplier
  • #2 of 13 best companies in Biochemistry Lab
  • #2 of 26 best companies in Biotechnology Company
  • #4 of 11 best companies in Laboratory
  • #1 of 2 best companies in Pharmaceutical Lab

Written by the company

Prime Lab Peptides is a research-use-only peptide supplier known for consistent product quality and responsive customer support. We're a team of passionate individuals driven by the mission to provide the highest possible quality on the market — not by profit, but by purpose.

FREE & Fast U.S. Shipping

Orders ship within 12 hours – always free.

Orders ship within 12 hours – always free.

We process all orders within 12 hours of confirmation. Every package is shipped directly from our U.S. laboratory via FedEx 2Day Air, with full tracking and protective packaging to ensure fast and secure delivery.

Contact info

Garrison Lytle

US ·1 review

My order arrived in 3 days to Texas, perfectly packaged with everything labeled clearly. I started my research protocol right away, not expecting much in the first week. But by day 4, I noticed my clothes fitting looser around my waist. By day 7, I stepped on the scale and nearly fell over — 14 lbs gone. I literally weighed myself three times to make sure it wasn’t broken.

Reviewed

Cecil Walters

US ·1 review

I’ve always been skeptical about anything that promises quick results. I’ve tried multiple “miracle” programs, expensive supplements, and fad diets, and I always ended up disappointed. A friend from my gym told me about Prime Lab Peptides and said their Retatrutide was “on another level.” I figured, why not? Worst case, I’d be out a couple hundred bucks.

Reviewed

Bill Harding

US ·1 review

5 days, 10 lbs gone. That’s all I have to say. Retatrutide from Prime Lab Peptides is the real deal. Order 15940.

Reviewed

Ashby Lovelace

US ·1 review

Only 7 days into my Reta cycle from Prime Lab Peptides and I’ve already lost 13 lbs. I haven’t seen the scale move this fast in my life. Can’t wait to see where I’ll be in a month.

Reviewed

Bryan Ashworth

US ·1 review

I did my Retatrutide cycle at the same time as my roommate. I dropped from 280 lbs to 210 lbs and she went from 240 lbs to 180 lbs. Both of us lost 24% and 21% of our starting weight thank you.

Reviewed

Angelo Hayes

US ·1 review

I ordered Retatrutide from Prime Lab Peptides and the results blew me away. I started at 240 lbs and now I’m sitting at 180 lbs flat — that’s exactly 25% of my body weight gone.

Reviewed

ALBERT GRAHAM

US ·1 review

I placed my order on a Sunday evening and honestly didn’t expect it to move until Monday. To my surprise, first thing Monday morning I got a friendly email explaining that my item was in the current batch awaiting final third-party lab confirmation. I actually appreciated that they hold products until purity results are in, mine came back at 99.877% and that gave me a lot of confidence. What stood out most was how clear the communication was. Every time I emailed, I got a same-day reply with an update and what to expect next. The tracking number arrived as soon as the carrier scanned it, and I could follow it in real time. The “Pre-Shipment” status showed briefly its normal with USPS and then the next scan confirmed it was on the way 🥰 package landed at my door exactly when they said it would. Even during what seemed like a busy week for them, they still kept me updated without me having to chase them. The quality-first approach and transparency made me feel like my order mattered. I’ve switched most of my business to Prime Lab Peptides now because I trust how they operate. See updated review [https://businessapp.b2b.trustpilot.com/reviews/689eed9731555f8a2ff5fac0/?locale=en-us&businessUnitId=681f7d9aaa0d32686abce823]

Reviewed

David Watson

US ·1 review

I lost 26 lbs in 8 weeks with their Tirz. My neighbor saw my progress, ordered his own, and now he’s down 31 lbs in just 2 months. Everything came exactly as described and right on time.

Reviewed

Jerenmy

US ·1 review

Me and my wife both ordered from Prime Lab Peptides. She did the Reta and I did Tirz. In just 10 weeks, I’m down 45 lbs and she’s lost 32 lbs. Everything arrived on time, packed perfectly, and we’ll be back for more research.

Reviewed

Eddie Foster

US ·1 review

When I contacted them with a question about purity testing, they didn’t just send me a standard answer. They gave me the actual results from the lab and explained the testing process. That’s the kind of transparency that makes me trust a supplier.

Reviewed

Christopher

US ·1 review

From start to finish the process was simple. Ordering was easy, payment went through without a problem, and I got my tracking within a couple of days. The package was discreet and professionally packed. Product looks great and matches exactly what I ordered.

Reviewed

Lawson

US ·1 review

I had a shipping issue because of the carrier, not the company. They still went above and beyond to help me get it sorted and made sure I had my product on time. That’s what customer service should be like.

Reviewed

Joseph

US ·1 review

I was worried a delay would mess up my dosing protocol, but when I reached out, Sofia from support reassured me it wouldn’t affect my progress and that my order would be shipping soon. She was right, and I was able to stay on track without any issues. The product quality is spot on and exactly what they promised.

Reviewed

Angelo

US ·1 review

I needed my Tirzepatide urgently and was nervous about delays. The team explained they were waiting for the independent purity results before shipping. I respect that because it means they don’t compromise on quality. The order came through exactly when they said it would, and the purity was actually slightly higher than the COA.

Reviewed

Eli Harper

US ·1 review

I switched from another supplier and wanted to give Prime Lab Peptides a try. My first order happened to land right during the rush from the group post. They explained everything and even told me the exact purity, which was actually higher than on the COA by 0.244%. That kind of honesty and detail gives me confidence in ordering again.

Reviewed

DAVID HARLOW

US ·1 review

I saw some negative reviews but my experience was completely different. Yes, there was a delay, but it was because of a huge spike in orders after their site was shared in a big group. They gave me a ship date, stuck to it, and my order arrived exactly when they said it would. The purity is the highest I’ve seen on the market. Not a scam, just a small team that takes the time to do things right. See updated review [https://businessapp.b2b.trustpilot.com/reviews/689cd293d3c9f701ba1e5580/?locale=en-us&businessUnitId=681f7d9aaa0d32686abce823]

Reviewed

Alexander Burke

US ·1 review

I was worried a delay would mess up my dosing protocol, but when I reached out, Sofia from support reassured me it wouldn’t affect my progress and that my order would be shipping soon. She was right, and I was able to stay on track without any issues. The product quality is spot on and exactly what they promised.

Reviewed

Adam Sloane

US ·1 review

I first found Prime Lab Peptides through a big peptide community group. One of the admins shared their site and it seems like everyone rushed in and completely wiped out their Tirzepatide stock in a few hours. I ordered during that time and there was a bit of a delay, which made me nervous at first. The support team explained that they were waiting for the new batch to be tested before shipping, and everything was already lined up to go out. I just got my package and it’s perfect, sealed and tested at 99.783% purity. Now I see why so many people in the community recommend them.

Reviewed

Mark

US ·1 review

I order Retatrutide and was pretty suprised how pro everything felt. Shipped from US, came in perfect condition, even had protective pack so nothing get damage. I started my research on a Friday and by next Friday morning I lost 13 lbs. No crazy hunger, no crash just steady change.

Reviewed

Malachi Roper

US ·1 review

Its hard to explain how it feels seeing that much progress in 1 week after years of barely seeing the scale move. My confidence is coming back, ppl keep telling me I look different and I already ordered again cause I dont wanna lose the momentum.

Reviewed

How reviews work here

Where these reviews come from

Two sources. 1,272 were left by customers on our former public review profile and rebuilt from the notification we received for each one — the wording, rating and date are the customer's own. The rest were written here since, after an order or directly from this page.

Every review is read before it goes live

A human reads each new review for abuse, defamation, personal data or off-topic content — never for its rating. Every decision is logged with its reason, and a published review appears word for word.

Nothing is filtered by rating

The 19 one-star and 8 two-star reviews are kept and readable through the rating filter. A page that only shows praise is not worth reading.

What is not here

Reviews their authors deleted, and reviews taken down before the former profile closed, are excluded — republishing them would put back online what was removed.

How the rating is computed

A plain average of 1,277 ratings, every review counting once. No weighting, no recency bonus.