My wife was on compounded Reta for 1 month doubled the dose to 4mg Northline labs and the weight loss stopped completely. One thing that will say is RX compounded Reta stopped her snoring, as soon as... Toon meer
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Lees wat reviewers zeggen
Been with Northline for some time now. Shipping and quality are always on par with my expectations. NAD+, Reta, Wolverine, and Klow have worked as expected. I changed NAD+ suppliers when I found a mo... Toon meer
From start to finish, Northline is communicative, helpful, sincere, and 1st class level of professional. My order was well packaged, shipped fast, and the contents above reproach. Northline is... Toon meer
I started ordering from Northline a couple months ago and they’ve been awesome, reliable and dependable. When I did have any issues with shipping customer service was right on it and responded within... Toon meer
Bedrijfsgegevens
Geschreven door het bedrijf
Northline Labs is an independent United States supplier of research-grade peptides and bacteriostatic water. We work with researchers, laboratory professionals, and biotech operators who need consistent quality and predictable supply. Every batch we ship is third-party verified at 99%+ purity. The Certificate of Analysis for each lot is published on the corresponding product page before the order moves — no waiting, no requesting. Weekday orders typically ship same-day via UPS, and we run a standing buy-one-get-one-50%-off offer across the catalog. We answer customer emails in hours rather than days, and we read every reply. Lot quality, transparency, and responsive support are the three things we work hardest to never miss — and the reason most of our customers come back.
Contactgegevens
Verenigde Staten
- northlinelabs.org
4,3
Uitstekend
498 reviews
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Dit bedrijf nodigt klanten uit om een review achter te laten. Deze mag zowel positief als negatief zijn.
Heeft 39% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 2 weken
Zo gebruikt dit bedrijf Trustpilot
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Everything was easy
Everything was easy, honest, and simple! Delivery was fast! Will be a regular customer!
4 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Molly! Easy, honest, and simple with fast delivery is exactly what we want every order to feel like. We're glad to have you as a regular!
I think the value of express delivery…
I think the value of express delivery could be better, and it could arrive faster.
12 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thanks for the honest feedback, Fabiana. We hear you on express delivery value and speed — it's something we're actively working to improve. We appreciate you taking the time.
Quick turnaround
I received my order in 3 business days and it was as advertised.
25 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Brent! Three business days and exactly as advertised is the experience we want every time. We appreciate you.
Ease of ordering
Ease of ordering
Great pricing and quick delivery
25 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Paul! Easy ordering, great pricing, and quick delivery is what we're here for. We appreciate you.
Fast shipping!
Fast shipping!! Well packaged!! Quality all around!!
8 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Steve! Fast shipping, solid packaging, and quality all around is exactly what we strive for. We appreciate you!
Been using them for months
Been using them for months. Good product and fast shipping.
12 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Victoria — months of loyalty means a lot to us. A good product and fast shipping every time is the goal. We appreciate you!
Antwoord van Northline Labs
Thank you, Kandace! Good service and an even better product is the bar we hold ourselves to. We appreciate you.
So I've been on the glp-3 for 3 weeks
So I've been on the glp-3 from Northline Labs for about 3 weeks now and I love the results dropped about 10 lbs . I have a really bad sweet tooth and it basically silenced the cravings excellent product I will be ordering again
11 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you for the kind words and the 5 stars — we truly appreciate you, and we're glad you'll be ordering again!
Package took a little longer to receive…
Package took a little longer to receive so I missed some doses, so far everything seems to be working. Klow has helped with my inflammation and it also helps me sleep very well. Reta has yet to kick in, I have 20 mg so my next order will be 30mg, I’m hoping to loose some weight but also have more energy & recover faster from Hiking.
1 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thanks for the honest feedback, Rachel. Sorry the package took a little longer this time — we're always working to keep delivery quick, and we appreciate your patience and the 4 stars.
Good quality
Good quality, excellent customer service and fast shipping
1 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Nicolette! Good quality, excellent service, and fast shipping is the standard we hold. We appreciate you.
I am just getting started with…
I am just getting started with peptides, and Northline has been so helpful. They are quick to answer any questions I may have via email, and shipping has always been fast. I appreciate everything about Northline. The quality of the peptides has been great!
Kristy T
11 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you so much, Kristy! We're glad the team has been helpful and responsive over email, and that shipping's been fast. We're grateful to have you with us as you get started!
Very positive
Very positive, highly recommend this site. Product are quality. I am using reta and recommend highly.
2 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Andrea! We really appreciate the high recommendation and the kind words about quality. Grateful to have you with us.
Shipped quickly
Very impressed with how quick it was shipped. As soon as I placed my order within the same day it was on the way. Packaged great and no damages. Ordered twice and will again. Ty
3 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Christie! Quick shipping, solid packaging, and no damage on arrival is exactly what we aim for. We appreciate you.
Northline is very efficient and sells a…
Northline is very efficient and sells a great product. They are very responsive!
1 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Christopher! Efficient, responsive, and a great product is exactly what we strive for. We appreciate you.
Review of Delivered Order
After researching information on the website, I placed an order for the GLP3. The product was delivered within the time frame I was provided and I am very satisfied with the results thus far.
1 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Rebecca! We're glad your research led you to us, and that delivery landed right within the time frame we quoted. We appreciate you.
The only company I trust for peptides
I’ve been ordering various peptides from Northline for four months and the experience has been great. The products are effective, tested for purity, and shipping is fast.
10 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you for trusting us with your peptide orders these past few months — that means a lot. We're proud of our purity testing and fast shipping, and grateful to have you with us.
Great Products and Customer Service! Multiple orders.
Great Products and Customer Service!
4 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Bryan! Great products and great service across multiple orders is exactly what we aim for. We appreciate your repeat business!
I order and it shipped the same day
I order and it shipped the same day. Got the product fast. So far so good on the quality. I like the COA’s for each batch are available for transparency.
10 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Christopher! Same-day shipping and a per-batch COA for transparency are things we're proud of. We appreciate you.
fast delivery, great product
I’ve ordered from Northline Labs a few times now and have been using Reta, NAD+, and GHK-Cu for about 4 months. Delivery has always been quick, the process is simple, and I haven’t had any issues. Products arrived as expected and overall it’s been a very smooth experience. Definitely happy with my orders so far.
24 april 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Eva! A few months of quick delivery, a simple process, and no issues is exactly the smooth experience we want for every order. We appreciate you!
Been using Northline for about half a…
Been using Northline for about half a year now.. Go product and customer service will be continuing to use them
2 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Johnny! Half a year with us means a lot — we're glad the product and customer service have kept you coming back. We appreciate you and look forward to your next order.
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