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.
#1 of 16 best companies in Research and Product Development
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#2 of 13 best companies in Biochemistry Lab
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#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.
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.
From the moment I switched to Prime Lab Peptides, I noticed a clear difference in both product quality and customer service. Shipping is consistently fast, and the products have exceeded my expectations. I even referred a friend—which I rarely do—because I only recommend companies I truly trust to take care of the people I care about. I will continue to purchase from this company with confidence.
Reviewed
RH
Rhonda Hutchins
US ·1 review
No issues. Great service
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KD
Keila Dornelas
US ·2 reviews
I’m very satisfied delivery very fast
Reviewed
TB
Timothy Butler
US ·3 reviews
Good quality, price and delivery
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LT
Leann Thornton
US ·1 review
Best prices and products with fast delivery.
Reviewed
JG
Jose Gonzalez
US ·1 review
I’m a rate them 5 stars since my shipment was left at front porch on floor unprotected and came home to find a torn package with no product. After 2-3 days back and forth they refunded my money back. Not sure why they wouldn’t request a signature on delivery since my product was $300 dollars! Hopefully in the future they now require a signature to hand over high priced items! 5 star for great customer service.
Reviewed
JU
Julie
US ·1 review
Fast delivery and it works great
Reviewed
JC
Johntae Crow
US ·1 review
The tirzepatide has been a miracle for me. I have been using this product for about 6 months now and I am down 55 lbs. I have been on diets for about 13 years since I had my last child and I can never lose more 15 lbs. Delivery is quick and easy. Can't say enough great things about Prime Lab!
Reviewed
HR
Heather R
US ·1 review
Delivered on time and exact product! I will be using them from now on!
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MS
Magaly Salvat
US ·1 review
Estoy muy satisfecha con mi experiencia. El pedido fue procesado rápidamente, el envío fue puntual y el producto llegó bien protegido. La comunicación fue clara y profesional. Definitivamente volvería a comprar, gracias
Reviewed
BC
Brett Carter
US ·1 review
It’s doing exactly what I’m getting it for.
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NI
Nikki
US ·1 review
Easy to order, prompt delivery. Plus it works.
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BS
Bonnie Sharp
US ·2 reviews
I have lost 20lbs since being on Tirzepatide and my daughter has lost 25lbs. This product is great.
Reviewed
DA
donald armstrong
US ·6 reviews
Great products. Customer service is on point. Packaging is top notch and very quick delivery. Highly recommend!!
Reviewed
CJ
Courtney J
US ·1 review
The tirzepatide works great! The food noise is gone. I’m losing weight. I’m adding the gym into my regimen and the only diet I’m sticking to is nutrient dense foods, primarily protein and fiber, because I get full very quickly!
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DE
Deb
US ·1 review
Very fast shipping
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BJ
Bjack
US ·1 review
Very quick arrival of meds and responded to a text message same day. Seamless experience. Definitely will order again!
Reviewed
JP
Jeremy Pitts
US ·3 reviews
Top notch company with fast shipping and trustworthy research chemicals
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MM
Meagan McComber
US ·1 review
Fast delivery, great communication. Trustworthy provider.
Reviewed
CD
Colleen Donahue
US ·2 reviews
Fast shipping. Product works great! Second time using this company and I WILL use them again. Thanks!
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 1,276 ratings, every review counting once. No weighting, no recency bonus.