Northline Labs Recensioni 181

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

181 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

I have been using peptides now for…

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 NONE of these issues. Inventory was great, payments were easy, and delivery was fast! The product was just as promised! I will do my peptide shopping here from now on! Thank you Northline!

6 maggio 2026
Non scritta su invito
Valutata 5 stelle su 5

This company is so amazing and…

This company is so amazing and educational. Ordered a bunch and beyond happy and have a life long customer. The videos and tips and tricks are next level. Highly recommend

12 maggio 2026
Non scritta su invito
Valutata 4 stelle su 5

Prices are a little high

Prices are a little high, but quality is good. They often run deals and have discounts so it’s more affordable. You get what you pay for though, and quality costs more money. Can’t put a price on health, so all in all 4/5 stars but that missing star probably has more to do with my income level than anything.

13 maggio 2026
Non scritta su invito
Valutata 5 stelle su 5

Excellent Customer Service

I placed my first order last month, everything came exactly as described and was delivered in a timely manner. I will be ordering again!

20 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Vicki — first orders matter most, and 'exactly as described + on time' is exactly the bar. Looking forward to seeing you on the next one. — Northline Labs Support Team

Valutata 5 stelle su 5

Northlinelabs has been my go to for…

Northlinelabs has been my go to for quality peptides. Competitive pricing and fast delivery. I personally have had a fantastic experience. Will continue to do business with Northlinelabs.

8 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Thomas — competitive pricing + fast delivery + repeat orders is the loop we work to lock in. Appreciate the trust. — Northline Labs Support Team

Valutata 4 stelle su 5

Great Quality and Packaging, Helpful Label Suggestion

The peptides I’ve received from North Line Labs have arrived very well packaged, protected, and in good condition. So far, my experience with the shipping and product presentation has been very good.

As a suggestion, I think it would be very helpful if the labels had different colors depending on the peptide category, for example recovery, performance, fat loss, sleep/recovery, etc. That would make it much easier to recognize them quickly, especially when managing several vials at the same time.

Overall, it has been a very good experience with the product and packaging. That small detail with the label design would make the organization even more practical.

1 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Mateo — thoughtful packaging suggestion. Color-coded labeling by compound family is an idea we'll bring back to the operations side. Glad current packaging + presentation held up. — Northline Labs Support Team

Valutata 5 stelle su 5

No issues with purity and quality

No issues with purity and quality. Excellent products. Quick shipping. Great customer service!

20 marzo 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Laurie — purity + quick shipping + responsive CS. That's the bar. Appreciate the review. — Northline Labs Support Team

Valutata 5 stelle su 5

I like that your a US based…

I like that your a US based company..your catalog carries many top products..also love the 2 day shipping option..prices are very reasonable!

12 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Robert — US-based supply chain, broad catalog, 2-day shipping, fair pricing. That's the playbook. Appreciate it. — Northline Labs Support Team

Valutata 4 stelle su 5

Received quickly

Received quickly. Peptide came in powder form so I had to research what to do. No instructions are given. Order BAC water with your peptide. I had to send in a second order for that.

12 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks R Mig — noted on the reconstitution instructions. Every product page does have a recon section (BAC water amount, storage temp, stability window), but we hear you that an insert in the package would be easier. Both an in-box quick-start card AND an add-to-cart BAC reminder are on the build list. Sorry for the extra order to get BAC. — Northline Labs Support Team

Valutata 5 stelle su 5

Just got first order

Just got first order, ordering was easy and shipping was quick.

8 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks for the first-order review — easy ordering + quick shipping is the standard we hold ourselves to. Welcome aboard. — Northline Labs Support Team

Valutata 5 stelle su 5

I have loved my Northline products!

I have loved my Northline products!! They are 3rd party tested. Ordering is the easiest I have ever found. And it arrives as promised quickly! I have shopped at several sites and I will never need to change from Northline ordering!

1 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Traci — 'easiest ordering experience' is a high bar, and quick delivery + 3rd-party testing make the whole loop work. Appreciate you choosing us across multiple suppliers. — Northline Labs Support Team

Valutata 4 stelle su 5

Overall

Overall, great experience as far as product and processing time. Only wish they would ship using UPS OR FedEx? Will order again, though

1 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks JT — quick clarification: we DO ship UPS on every order. We don't use FedEx (those mentions are typically scam emails, unfortunately common in this category). Glad product + processing held up. — Northline Labs Support Team

Valutata 5 stelle su 5

Good customer service

Good customer service . Replied within a couple of hours . Fast shipping on the product . Everything I’ve purchased is legit. Will keep buying from this site .

14 marzo 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Ashley — hours-not-days is the bar on CSR. Glad both shipping and replies held up. — Northline Labs Support Team

Valutata 5 stelle su 5

Great Customer Service!

Great Customer Service!

My delivery was delayed by UPS and I was concerned about the integrity of the peptides. I emailed customer service and they guided me through the entire process and reassuring me that if anything is not right to let them know and they will take care of it. Their reply is fast and clear. Excellent product and excellent service.

11 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Joseph — UPS delays are out of our hands but how we respond when they happen isn't. Glad the CSR walk-through reassured you and the product landed clean. Appreciate the trust. — Northline Labs Support Team

Valutata 5 stelle su 5

Awesome Company

Awesome Company! I picked Northline for my peptides because they are 3rd party tested and verified. They also have a great selection of peptides and strengths. Shipping was very fast, they had great pricing, and I am very happy with the results I've gotten from the peptides. Great company!

2 aprile 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks — third-party testing, broad catalog, and fair pricing are three we put weight on. Glad they came through. — Northline Labs Support Team

Valutata 5 stelle su 5

Top tier quality products

Top tier quality products. Shipping was quick.
My husband and I are both seeing tremendous results from the Reta.

12 maggio 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks L.T. — quick turnaround on top-tier lots is the bar. Appreciate the review. — Northline Labs Support Team

Valutata 5 stelle su 5

Ordering was easy

Ordering was easy, shipping was quick and well packaged! All their email communication kept you up to date on where your order was in the process! Would definitely order from Northline Labs again!

25 marzo 2026
Non scritta su invito
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Risposta di Northline Labs

Thanks Jamie — status emails through every step of the fulfillment process are something we work hard on. Glad they kept you in the loop. Looking forward to the next order. — Northline Labs Support Team

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