Northline Labs Recensioni 184

TrustScore 4.5 su 5

4,6

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Scopri cosa dicono le persone

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

Valutata 5 stelle su 5

Quality products. Used several peps from Northline and every one have been great. Reta has shown great results and CJC-IPA provides the flush that indicates it’s working. Northline is my trusted suppl... Leggi di più

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

184 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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Scopri come vengono raccolte, valutate e moderate le loro recensioni e valutazioni.

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Valutata 5 stelle su 5

Very reliable company

Very reliable company. Service and support was excellent and I received my order quickly. They appear very knowledgeable and responsive and will be my go to.

6 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thank you for the trust—quick orders + responsive support is the experience we want every researcher to have. Glad we'll be your go-to.

— Northline Labs Support Team

Valutata 5 stelle su 5

Great products

Great products. Great price. Fast shipping. Great customer service. I won’t buy from anywhere else.

30 marzo 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks, Jack—that's the highest endorsement we can get. We'll keep working hard to keep your business.

— Northline Labs Support Team

Valutata 2 stelle su 5

Negative

Negative. Send the wrong order. Last month and. Yet no possible solution. Too much money to throw away. I won't purchase again. Still seeking refund.

Update. The company reached out and will hopefully have it resolved in a day or two. Thank you.

13 marzo 2026
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Risposta di Northline Labs

Hi Amy, sincere apologies for the experience and the wait. We have resolved this — a replacement of your correct KLOW Blend order #31776 was shipped to you at no cost. No need to return the original. If anything is still outstanding, please email hello@northlinelabs.org and we will make it right today. Northline Labs Support Team

Valutata 5 stelle su 5

Very happy with Northline

I was feeling overwhelmed trying to figure out which company to use for peptides after buying in clinic for $$$. I followed advice on Reddit and other online forums recommending Northline and I’m happy. Great quality and service.

27 aprile 2026
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Risposta di Northline Labs

Debby, thanks for taking the leap with us. We know there are a lot of options out there—glad the experience matched what folks online were saying.

— Northline Labs Support Team

Valutata 4 stelle su 5

Great product - Prompt delivery

I have now ordered from Northline 3 times and each order arrived on time and no issues. I like this product and will continue to use this company.

23 aprile 2026
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Risposta di Northline Labs

Hi Kimberli, thank you for being a repeat customer and for taking the time to leave a review. We appreciate you and look forward to continuing to support your research. Northline Labs Support Team

Valutata 5 stelle su 5

Northlinelabs delivered exactly as…

Northlinelabs delivered exactly as promised! Quick, efficient and great deals if you’re just starting into your peptide journey. The website was user friendly and easy to use! Great job!

23 marzo 2026
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Risposta di Northline Labs

Thanks, Kris! We work hard to make the site easy to use, especially for researchers just starting out. Glad it landed exactly as expected.

— Northline Labs Support Team

Valutata 5 stelle su 5

I have been on peptides for some time…

I have been on peptides for some time now and I appreciate that the northlinelabs takes the extra step and gets their products 3rd party tested. They’re shipping process is very efficient

27 aprile 2026
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Risposta di Northline Labs

Chayanne, thanks for the trust. 3rd-party testing on every batch and tight shipping turnaround are non-negotiable for us—glad both came through.

— Northline Labs Support Team

Valutata 5 stelle su 5

Just do it!

Delivered quality products on time and as expected!

17 aprile 2026
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Risposta di Northline Labs

Thanks, Jeffrey. On time, as expected—that's the bar. Appreciate you.

— Northline Labs Support Team

Valutata 5 stelle su 5

Ordered Reta and NAD

Ordered Reta and NAD. Although shipping was a little delayed I’m happy with the Reta. Customer service has been great from day one. Haven’t started my NAD as I advised I needed to reconstitute with saline as opposed to the back water. Have recommend this company to several friends

27 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Christy, sorry shipping ran a touch slow on this one—thanks for your patience. Really appreciate the referrals to your friends; word-of-mouth is the kindest thing a customer can do.

— Northline Labs Support Team

Valutata 5 stelle su 5

I purchased multiple peptides and…

I purchased multiple peptides and response to order was outstanding and shipped quickly and on time. I have then seen great results with products purchased, I have recommended multiple people to this company and from what they have e told me they have had the same results and same costumer service.

27 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Hi Shana, thank you for the review! Northline Labs Support Team

Valutata 5 stelle su 5

First batch ordered

I just ordered my first group of peptides from this company. Shipping on their end was super fast. Dropped off at ups a few hrs after I purchased. We will see how it goes and if it goes well I wont hesitate to order from them again.

23 aprile 2026
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Risposta di Northline Labs

Hi Lucas, welcome — thanks for giving us a try. Reach out anytime if you need anything. Northline Labs Support Team

Valutata 5 stelle su 5

Consistency

Been a customer for a few months. Products are as described, backed with COAs and available customer support.

Highly recommend.

31 marzo 2026
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Risposta di Northline Labs

Hi Chris, thanks for being a long-time customer. Consistency is the bar we hold ourselves to. Northline Labs Support Team

Valutata 5 stelle su 5

Great customer service

I made my first order and it duplicated. I messaged them and they sent back the first payment and fixed it. Really super easy to work with.

4 marzo 2026
Non scritta su invito
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Risposta di Northline Labs

Hi Ruthann, glad we could fix the duplicate quickly — thanks for the patience and the kind review. Northline Labs Support Team

Valutata 5 stelle su 5

Fast service

Was able to get my stuff very quickly and I live in Hawaii which is very unusual.

6 aprile 2026
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Risposta di Northline Labs

Hi Tommy, glad we got it to Hawaii fast — thanks for the review. Northline Labs Support Team

Valutata 5 stelle su 5

Great quality

Great quality, timely delivery nuff said.

1 aprile 2026
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Risposta di Northline Labs

Hi Michael, thanks for being a repeat customer — we appreciate you. Northline Labs Support Team

Valutata 5 stelle su 5

My experience with Northline has been exceptional

My experience with Northline has been excellent. Product was as described and arrived within 4 business days. I've reordered from them and will continue.

10 aprile 2026
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Risposta di Northline Labs

Lynne, repeat orders are the truest 5-star rating we can earn. Thank you—we'll keep showing up.

— Northline Labs Support Team

Valutata 5 stelle su 5

A provider you can trust!

I have purchased with Northline Labs a bunch of times now and been very pleased with the process, and products. In a time when it's hard to find trustworthy sourcing, you can trust Northline!

15 aprile 2026
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Risposta di Northline Labs

Shayne, that's exactly the bar we set—be the lab people can trust when sourcing is messy out there. Thank you for the repeat business.

— Northline Labs Support Team

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