Northline Labs Recensioni 182

TrustScore 4.5 su 5

4,6

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Scopri cosa dicono le persone

Valutata 5 stelle su 5

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... Leggi di più

L'azienda ha risposto

Valutata 5 stelle su 5

I have been using peptides now for about 2 months. And I have been purchasing from a few different vendors. Some have slow delivery. Have limited inventory. Or don't take credit cards. Northline had... Leggi di più

Valutata 4 stelle su 5

I started out with just one peptide and now use a few different ones from Northline. Shipping is fast and customer service is great. The only thing I wish they would do is use larger vials for the hig... Leggi di più

L'azienda ha risposto

Valutata 4 stelle su 5

Product Works. But I bought the The Mot-C and the BP-157 and there was no water to reconstitute the powder on either. This was a reorder for me. Twice no water. I think if you order stuff that needs t... Leggi di più

L'azienda ha risposto

Dettagli dell'azienda

Scritti dall'azienda

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.


Informazioni di contatto

4,6

Eccellente

TrustScore 4.5 su 5

182 recensioni

5 stelle
4 stelle
3 stelle
2 stelle
1 stella

Ha risposto al 100% delle recensioni negative ricevute

Solitamente risponde entro 2 settimane

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Valutata 5 stelle su 5

Efficient Service

The service is great! I received the product 48 hours after ordering. I am new to peptides and wasn’t sure what to expect. I was impressed that they were so efficient.

1 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Christie — first-time customers are the ones we pay closest attention to. 48-hour delivery and a clean experience matter most when you're new to this space. Welcome aboard. — Northline Labs Support Team

Valutata 4 stelle su 5

Product is great

Product is great - customer service is a little slow to get back to you - but nothing to do with the product.

I'd recommend !

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Shell — honest call-out on response speed. We've added CSR staffing recently and your feedback pushes that work. Glad the product itself held up. — Northline Labs Support Team

Valutata 4 stelle su 5

wide variety of peptide options

wide variety of peptide options. Competitive options. Only been using for a couple weeks, but Seem to be working great!

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Greg — catalog breadth + competitive pricing are two we put real weight on. Welcome aboard. — Northline Labs Support Team

Valutata 5 stelle su 5

Retatutride simply the BEST

After having tasted their peptides particularly Retatutride, our research trials were very successful atestiguan high quality and purity , our team of colleagues have started to purchase batches of 10 vials we are very satisfied with Northline labs

5 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Ernesto — research teams ordering in batch volume is the highest signal we get. Glad lot quality and purity have held across multiple batches. — Northline Labs Support Team

Valutata 5 stelle su 5

I love Northline Labs

I love Northline Labs. These peptides are great quality and they ship amazingly fast. I had my order within two days. I will be a lifelong customer.

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Brandi — two-day shipping and a lifelong customer is exactly the loop we're trying to build. Appreciate it. — Northline Labs Support Team

Valutata 5 stelle su 5

I’ve ordered multiple times

I’ve ordered multiple times. Friends have ordered and we’ve all received our product super fast!

Product itself is great. Great results. I personally love GHK-Cu. Highly recommend.

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Austin — repeat orders + friends ordering is the cleanest signal we get. Glad shipping has held across batches. — Northline Labs Support Team

Valutata 5 stelle su 5

Ordering process was quick and easy

Ordering process was quick and easy, delivery was quick, shipped and at my my door as promised. Quality seem to be great so far and I will be making my next order soon..

7 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Karlos — fast order to door, shipped on schedule, and quality reading right. That's the standard. Appreciate the review. — Northline Labs Support Team

Valutata 4 stelle su 5

I’ve ordered twice from Northline Labs…

I’ve ordered twice from Northline Labs and both shipments have been quick. The packaging could be a little better and I’d prefer the COA provided with the shipment but otherwise all was as expected and I have had good results.

11 maggio 2026
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Risposta di Northline Labs

Thanks Lance — actionable feedback noted. Packaging upgrades are on the list, and we'll evaluate including a COA insert in shipments. In the meantime, the COA for your batch is linked on the product page anytime. Appreciate the honest review. — Northline Labs Support Team

Valutata 5 stelle su 5

10/10

Easy website & check out. Quick shipping. Great product. Love my results!

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks for the 10/10. Easy site + quick shipping is the foundation we work to keep boring and consistent. Appreciate the review. — Northline Labs Support Team

Valutata 5 stelle su 5

I was worried at alittle worried at…

I was worried at alittle worried at first because they sent me an email stating my delivery date changed but I still received my
Order rather quickly. I will be ordering again!

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Bria — sorry about the delivery-date wobble; UPS occasionally adjusts mid-route. Glad it landed quickly anyway. — Northline Labs Support Team

Valutata 4 stelle su 5

Product Works. Helped pain on my shoulder significantly.

Product Works. But I bought the The Mot-C and the BP-157 and there was no water to reconstitute the powder on either. This was a reorder for me. Twice no water. I think if you order stuff that needs to be reconstituted you should have a mechanism in your app that says so or don’t forget to add etc. Yoi need a better description on method as well. Confusing to a layman. Mike Creagan

8 maggio 2026
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Risposta di Northline Labs

Thanks Mike — great call on the reconstitution prompt. We're working on an add-to-cart reminder for BAC water on peptides that require reconstitution, and clearer protocol guidance on each product page. Appreciate the actionable feedback. — Northline Labs Support Team

Valutata 4 stelle su 5

Everything was easy

Everything was easy - ordering- payment- quality of product.

15 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Linda — easy ordering, payment, and quality is exactly the standard. Appreciate the review. — Northline Labs Support Team

Valutata 4 stelle su 5

Small issue with using Venmo but once…

Small issue with using Venmo but once that was figured out, received product in a timely manner. Product has been great!

24 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Amy — Venmo can be fiddly on first use; glad it sorted and shipping held. Appreciate you pushing through. — Northline Labs Support Team

Valutata 5 stelle su 5

Excellent Customer Service & Quick Resolution

I’ve had a great experience overall. On one occasion, my order was incorrect, but the issue was resolved immediately without any hassle. Excellent customer service and very professional staff. Highly recommended!

11 dicembre 2025
Non scritta su invito
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Risposta di Northline Labs

Thanks Rene — service recovery on a wrong order matters more than a perfect one. Glad we resolved it cleanly. Appreciate the trust. — Northline Labs Support Team

Valutata 5 stelle su 5

GREAT QUALITY!

So far my personal experience has been great, you just need to do your research and know what you are doing.. I have been using it for two weeks… Also,if you are not taking the right dose you will not have a good experience. I am satisfied with the quality, so much I’ve started my oldest son on Reta. Great products guys!!!

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Laura — appreciate the review. Quality is the baseline we work to keep consistent across batches. — Northline Labs Support Team

Valutata 5 stelle su 5

Great Service/product

First, I’d like to note that they have great customer service. My order got lost and they replaced it within the day after I notified them. Second, they have great peptide selections and are reliable. I will be using Northlinelabs for my peptides for the future.

25 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Phong — next-day replacement on a lost UPS package isn't always smooth on our end, so glad it worked out. Appreciate the trust on future orders. — Northline Labs Support Team

Valutata 5 stelle su 5

Order process and shipping

First, the immediate shipping after placing my order! Bravo! Wasted no time to process my order and get it straight to me without any delays or excuses! Amazing work NorthlineLabs!

4 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Jonathan — fast turnaround start to finish is the standard we hold ourselves to. Appreciate the kind words. — Northline Labs Support Team

Valutata 4 stelle su 5

I started out with just one peptide and…

I started out with just one peptide and now use a few different ones from Northline. Shipping is fast and customer service is great. The only thing I wish they would do is use larger vials for the higher milligram content. Other than that, I would definitely continue to use Northline Labs for my peptides needs.

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks for the feedback. Larger-vial requests are landing repeatedly; we're prioritizing higher-dose vial sizes on the most-requested compounds for the next batch round. Glad shipping and CS have held up across orders. — Northline Labs Support Team

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