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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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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Reageert doorgaans binnen 2 weken
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Great service and prices
First of all the website is user friendly which is a plus. The BOGO deals are great because this stuff is expensive. The shipments go out fast and ha not had any problems. Overall I am pleased with the service and prices will continue to buy.
25 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Everett! Glad the site's easy to use and the BOGO deals are landing for you. Fast, problem-free shipping at fair prices is what we're after. We appreciate you and look forward to your next order!
Fast delivery easy checkout easy site…
Fast delivery easy checkout easy site to navigate amazing company
20 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Jesse! Fast delivery, easy checkout, and a site that's simple to navigate is exactly what we want. We appreciate the kind words!
Great company to work with
Great company to work with, easy ordering, fast delivery arrived within 3 days will use again, keep up the good work.
10 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Mandy! Easy ordering and 3-day delivery — exactly what we aim for. We'll keep it up, and we appreciate you coming back!
Quick shipping
Quick shipping. Pricy cane in professional looking goal. Looks like we got just what we ordered
1 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Kristy! Quick shipping and professional packaging, exactly as ordered — that's what we like to hear. Appreciate you!
Great customer service
When I received my first order with this company, it was incorrect. However, they rectified it almost immediately. Since then, all my orders have come quickly and correct.
27 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you! We're glad we could fix that first order right away — and even happier everything's been quick and correct since. That's exactly how we want to show up. We appreciate you!
The shipping is quick
The shipping is quick. I had a question with my order and they responded quickly to my email. I’ve placed 2 orders and getting ready to place my 3rd.
12 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Miranda! Quick shipping and fast support — glad we could help with your question. Three orders in, we're grateful to have you and here's to many more!
I am fairly new to peptides and since I…
I am fairly new to peptides and since I have found Northline Labs it has made the process and the cost so much easier. Their customer service is amazing, they email you back right away, they are helpful and curious. I have referred 3 friends and they all love it too!!
15 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Tianna! Making the process and cost easier, plus quick and helpful email support, is exactly what we go for — and referring 3 friends means the world to us. We appreciate you!
So far so good
So far so good! Fast shipping with tracking updates throughout the process.
28 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Mikki! Fast shipping with tracking updates the whole way — that's exactly the experience we want. Glad it's off to a great start, and we appreciate you!
Satisfied
I have now ordered from Northline a few times and my order has always arrived quickly and with accuracy. I will continue to give my business to them.
9 maart 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, April! Quick and accurate on every order — that's exactly what we aim for. We're grateful for your continued business!
Great company with great products,,I…
Great company with great products,,I received my product in super fast time
27 december 2025
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, James! Great products and super-fast shipping — exactly what we strive for. We appreciate you!
Easy to order
Easy to order. They sent a follow up email right away with my tracking number. It did not arrive on its original date stated but when I emailed the company they relied within an hour with things get delayed. Let's wait until monday and we will go from there. They were right and it came the within the next 2 days. It is literally just the peptide with o instructions so prepare for that. I would order from thos company again though.
5 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Jennifer! Glad our team jumped on your email within the hour and got everything sorted — responsive support is a big deal to us. We appreciate you, and we'll see you on the next order!
So far great experience
So far great experience. Fast shipping and great results.
4 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Amanda! Fast shipping and a great experience so far — that's exactly what we want to hear. We appreciate you!
great product and quick delivery on…
great product and quick delivery on time and it’s top batch service seriously.
9 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Ahmed! Quick, on-time delivery and top-notch service — we appreciate the kind words and the support!
I’m pleased with the progress I’ve…
I’m pleased with the progress I’ve made. Easy to order and very fast delivery. Prices are decent.
9 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you! Easy ordering, very fast delivery, and fair prices — exactly what we aim for. We appreciate you!
Excellent products!
These peptides work better than I expected. Currently taking Reta and my appetite is non existent!
11 mei 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you so much for the kind words and for choosing Northline — we're grateful for your support!
I've had good results with northline…
I've had good results with northline products and will continue to use them. Prices are reasonable and shipping is quick.
Judy W
9 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Judy! Reasonable prices and quick shipping are exactly what we aim for — and we appreciate you continuing to choose us!
So far so good
So far so good! Only a few orders so far but quality has been great. Shipping fast! Love the BOGO sales!!
9 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you! Great quality, fast shipping, and yeah — the BOGO deals are a nice bonus. Glad you're off to a great start with us. Appreciate you!
Fast Shipping - Amazing Product
Shipping was fast and everything was packaged perfectly! Website was easy to use. Already feeling a difference in my body from beginning my peptide journey. Def recommend Northline Labs!
3 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you! Fast shipping, perfect packaging, and an easy website — exactly the experience we want. Thanks so much for the recommendation!
Fast service … convenient… Will use…
Fast service … convenient… Will use them again
5 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you, Steve! Fast and convenient — exactly what we're going for. We'll be here when you're ready to order again!
SATISFACTION
My husband and I have been using Northline for several months. We are completely satisfied! We have actually gotten 2 family members and 2 gym partners on Peptides. My daughter is on Reta. She is down 32 lbs in 6 weeks!
Hubby and I on Ipa/tesa and Mots c. We have lost over 20 lbs each and increased our muscles. We are more than 100% satisfied with Northline products!
9 juni 2026
Review zonder uitnodiging
Antwoord van Northline Labs
Thank you so much for the kind words and the support — it genuinely means a lot to our team. We're grateful to have you with us and we're here whenever you need anything!
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