Northline Labs are very prompt with shipping and once when I had a problem they were quick to correct the issue. My only slight complaint is that the vial packaging sometimes is not of a very high qu... Voir plus
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I started with Northline Labs a few months ago with one peptide. I was impressed with their customer care and their speed with getting me my product. Also their quality is like no other I’ve had befor... Voir plus
L'entreprise a répondu
I’ve ordered from Northline multiple times now and have had no problems whatsoever every time. Checkout process is super easy and delivery is quick. Products come well packaged and definitely are legi... Voir plus
L'entreprise a répondu
I’ve had nothing but positive experiences with this company. Not just once but twice they have gone above and beyond and given me stellar customer service. The first time, the reached out to me. The s... Voir plus
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À propos de l'entreprise
Écrit par l'entreprise
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.
Coordonnées de contact
Etats-Unis
- northlinelabs.org
4,7
Excellent
241 avis
Demande des avis aux clients
Cette entreprise invite régulièrement ses clients à laisser des avis, qu’ils soient positifs ou négatifs.
A répondu à 75 % de ses avis négatifs
Répond généralement dans un délai d'un mois
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Awesome customer service and reliable…
Awesome customer service and reliable products.
1 mai 2026
Avis spontané
Réponse de Northline Labs
Thanks, Alex! Service + reliability is the bar—really appreciate the kind words.
— Northline Labs Support Team
A + for you Northline Labs!!
I’ve had nothing but positive experiences with this company. Not just once but twice they have gone above and beyond and given me stellar customer service. The first time, the reached out to me. The second time, I contacted them and I heard back right away and they fixed the issue immediately. I haven’t purchased from another peptide company since finding them. The products I’ve ordered have always been good quality!
2 mai 2026
Avis spontané
Réponse de Northline Labs
Margaret, this is incredibly kind of you to share - thank you. We never want a customer to have to chase us, and I'm glad both times we caught up quickly. Really appreciate the long-term loyalty.
— Northline Labs Support Team
Réponse de Northline Labs
Thanks, Brian! Service + product quality is what we obsess over—really appreciate it.
— Northline Labs Support Team
Quality products at a great price
Quality products at a great price. Delivery was prompt and discreet. They have everything I could ask for and I will definitely come back for more.
28 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks, Aaron! Quality + fair pricing + discreet shipping is the bar. See you on the next order.
— Northline Labs Support Team
I emailed the company with questions…
I emailed the company with questions and got a reply right away! This craved my appetite and is helping me to feel better over all.
27 mars 2026
Avis spontané
Réponse de Northline Labs
Thanks, Maria! Glad we could help quickly—reach out anytime.
— Northline Labs Support Team
Positive experience
Positive experience, would highly recommend. Solid product.
4 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks, Heidi! Appreciate the recommend.
— Northline Labs Support Team
Réponse de Northline Labs
Thanks for the kind words—glad checkout was smooth.
— Northline Labs Support Team
Intially
Intially, I was concerned about the experiance but Northline came through and made it all right and apologized. Smooth transaction after that and quility product
3 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks, Victoria - really appreciate you sticking with us through the rough start and updating the rating. Glad the product itself landed well.
— Northline Labs Support Team
Réponse de Northline Labs
Thanks, Frank! Quality + fast shipping is exactly the bar.
— Northline Labs Support Team
Northline Labs delivered quickly
Northline Labs delivered quickly. I very pleased with the quality as well. Will definitely be ordering on a regular basis from them.
20 mars 2026
Avis spontané
Réponse de Northline Labs
Thanks, Tonya! Looking forward to having you back.
— Northline Labs Support Team
quick and reliable
1 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks, Wilbert! Quick + reliable is the goal.
— Northline Labs Support Team
Réponse de Northline Labs
Thanks, Minta! Quick turnaround is the bar.
— Northline Labs Support Team
Easy online navigation and directions
Easy online navigation and directions. Quick shipping !
29 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks, Kari! Easy site + fast shipping is the bar.
— Northline Labs Support Team
Switched to Northline
Switched to Northline after using a different company and the quality is outstanding. You can feel the impact of the high quality peptides, unlike the other company’s. Looking forward to continuing to use them
2 avril 2026
Avis spontané
Réponse de Northline Labs
Hi Mike, that means a lot — quality is everything for us. Thanks for switching over and for the kind words. Northline Labs Support Team
Easy communication
Easy communication. Order was as expected. Will be ordering again
15 avril 2026
Avis spontané
Réponse de Northline Labs
Hi Shannon, thank you for the review. We are glad it was a smooth experience and look forward to your next order. Northline Labs Support Team
Réponse de Northline Labs
Thanks so much — we appreciate you. Northline Labs Support Team
Réponse de Northline Labs
Short and to the point—thanks, Scott. 3rd-party COAs on every batch, always. Appreciate you.
— Northline Labs Support Team
Very competitive pricing and good range…
Very competitive pricing and good range of products!
14 avril 2026
Avis spontané
Réponse de Northline Labs
Thanks for the kind words — we appreciate you. Northline Labs Support Team
Northline Labs offers a good product at…
Northline Labs offers a good product at a fair price. The website is easy enough to navigate and shipping was quick. I'm still new to the scene, but if it works, it works! Northline works! Get some!
28 avril 2026
Avis spontané
Réponse de Northline Labs
Hi Alexander, glad it works! Thanks for the support and welcome to the Northline community. Northline Labs Support Team
Réponse de Northline Labs
Hi Jason, thank you for the review — we appreciate you. Northline Labs Support Team
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