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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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.
At first I had an issue with shipping and dealt with a very rude and threatening representative. After a few back and forth msgs Mary took over and did an amazing job of getting my order taken care of and even went above and beyond to send an extra vial for the troubles! The product works well and I will continue to use it.
Reviewed
RA
Ruth Ann Heinz
US ·1 review
I had to contact them about my order. I think it got forgot. But they replied quickly and got it out that day. Customer service was great!
Reviewed
PS
Pamela Snider
US ·2 reviews
Disliked the lack of communication. Said my order would be processed on one day and shipped out, Got my order yesterday 2 wks later
Reviewed
JM
Jen McNeill
US ·1 review
I like that it does work Don’t like that I was lied too about my order and when told y’all it was blown off . I needed it so I wouldn’t run out
Reviewed
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.
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.