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
#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.
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.
Fast free shipping, excellent quality, friendly conformation email that offers support
Free fast shipping Discount code wasn't offset by shipping cost like other suppliers. Researching lowers doses is very affordable but not so much when researching maintenance or max dosages. For comparison a compounding pharmacy charges the same price for all dosages. Trizep 15mg x4 =$200 Prime Labs Trizep 30mg @ $120 x 2= $240
Reviewed
NM
Nichole Matthews
US ·1 review
Fast shipping. I just placed my second order yesterday.
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BG
Barbara G.
US ·3 reviews
The potency is great, as far as the rubber top it keeps breaking my syringe needles
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CG
Camille Genus
US ·2 reviews
Works well!
Great product with fast delivery.
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NR
Nora Ray
US ·1 review
Quick service
Quick service
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EP
E Parsons
US ·1 review
Cheaper Price, But Not Worth It
I placed my first order with Prime Lab Peptide because of the advertised price. I had been using another peptide company successfully for 4 months, but wanted to give Prime Lab a try. Unfortunately, I won’t be ordering from them again. The vials arrived with very generic labels, which didn’t inspire confidence. After taking my first dose (same protocol I’d been on with no issues before), I noticed increased hunger within just 3 days. I even had to take a second dose in less than a week—something I never experienced with my previous supplier. Overall, I was disappointed with both the presentation and effectiveness of their product. I can’t recommend Prime Lab and will be going back to my previous peptide company.
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LD
Liane DAmico
US ·1 review
Best product by far. Customer service is exceptional!. I ordered during a sale and was told that shipping would take longer. I will only order from this company from now on,
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GS
Grace Santos
US ·1 review
Everything went good, place to go for my peptides. gracias
Reviewed
ML
Mark Lorry
US ·1 review
I have tried a couple suppliers before this one feels more relaible. No weird odors, no particles and the reconsituation was smooth.
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BP
Bruce Peterson
US ·1 review
Top and great Research and Product Development.
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DT
Daisy Thomson
US ·1 review
Prime Lab Peptides never misses. Clean packaging, quick ship, and everything matches the COA. I’m sticking with them i already lost 19lbs
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TK
Thomsan Kiem
US ·1 review
Love the clarity on batches .Label info is readable and lot numbers match the COA they sent .The transparency matters.
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DC
DANNY CLAFLIN
US ·3 reviews
Great experience.
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CU
customer
US ·15 reviews
i love this company did multiple orders
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ME
Miles Edwars
US ·1 review
Let’s be real, finding a reliable peptide source in the US is a minefield. Prime Lab is different. Every single order has been clean, fast, and accurate. I’ve done 6 now. No missing vials, no contamination, no BS. Just professional service every time.
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WC
Waylon Chavez
US ·1 review
I started with their tirzepatide and I’ve now added GLOW and BPC to my stack. Everything works so well together. I’ve dropped weight, inflammation is down, skin looks better, and I sleep like a baby. I’m not even pushing myself that hard and still seeing massive changes. Crazy.
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OE
Oliver Evans
US ·1 review
First time trying this company and honestly I’m impressed. The whole process was smooth, no hiccups, and the vials came in looking super clean. You can tell they didn’t just slap a label on. Feels like a proper lab operation, not some sketchy side hustle. Respect.
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WS
Willie Sifford
US ·1 review
To be honest, I thought this would just be another site that overpromised and underdelivered, but nope. I got my order in 2 days, sealed, packed tight, with a handwritten note thanking me for the trust. It was a small touch, but it made it feel real. Product’s solid too.
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LD
Liam Daron
US ·1 review
After 6 weeks on GLOW and KLOW my skin looks like I just got back from a wellness retreat. I’m not even joking. Smoother texture, tighter pores, and my dark circles started to fade. I get asked all the time what I’m doing. This is it.
Reviewed
JT
Jose Taylor
US ·1 review
I started with one order and now I’m 5 orders deep. You can tell when a company respects your time. Everything shows up fast, packed safely, and when you message them, you’re talking to real people, not some outsourced robot. I feel taken care of, and in this space, that’s rare.
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.