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Leia as opiniões dos outros

Classificada 5 em 5 estrelas

I’m sure this is the best mb experience, by far. Product, customer service, shipping time, etc. Everything is top notch! Great company’

Classificada 5 em 5 estrelas

I am receiving great prompt service from CZTL. Beings I am a long time customer this says a lot. The delivery is swift and there are updates. The products are protectively sealed very well. There has... Ver mais

Classificada 5 em 5 estrelas

Better than anything you’re going to find on Amazon- also it comes in 10x 1g vials and they are VERY easily dissolved in water. I made 5% strength solution and dissolving 5g of MB powder into 100mL o... Ver mais

Classificada 5 em 5 estrelas

Gemakkelijk te mengen en opmerkelijk goedkoop… Makkelijk te mengen en opvallend goedkoop vergeleken met het kant-en-klare product dat in kleine flesjes wordt verkocht en dat ik eerder kocht. Ik vert... Ver mais

Informações sobre a empresa

  1. Fabricante de produtos químicos

Sobre CZTL

Escrito pela empresa

Selling high purity USP grade Methylene Blue globally since 2004.

CZTL aims to provide high purity and cost effective Methylene Blue globally. Majority of our proceeds are directed towards improving our processes and research.

We distribute high quality powdered Methylene Blue and Methylene Blue solution globally.

Informações de contacto

4,7

Excelente

TrustScore: 4.5 em 5

107 opiniões

5 estrelas
4 estrelas
3 estrelas
2 estrelas
1 estrela

Não respondeu a opiniões negativas

Como esta empresa usa o Trustpilot

Veja como as respetivas opiniões e classificações são obtidas, classificadas e moderadas.

Na Trustpilot, as empresas não podem oferecer incentivos ou pagar para esconder opiniões. As opiniões pertencem a cada um dos utilizadores e não à Trustpilot. Saber mais

Classificada 5 em 5 estrelas

Excellent

I’m sure this is the best mb experience, by far. Product, customer service, shipping time, etc. Everything is top notch! Great company’

6 de abril de 2026
Opinião espontânea
Classificada 5 em 5 estrelas

I am receiving great prompt service…

I am receiving great prompt service from CZTL. Beings I am a long time customer this says a lot. The delivery is swift and there are updates. The products are protectively sealed very well. There has never been a broken container. There are very good instructions. I’ve never needed customer support of any kind but I imagine based on the consistency of their service and the quantity of their products there is not much need to contact them.

17 de março de 2026
Opinião espontânea
Classificada 5 em 5 estrelas

Great Quality, Easy to Mix!

Better than anything you’re going to find on Amazon- also it comes in 10x 1g vials and they are VERY easily dissolved in water. I made 5% strength solution and dissolving 5g of MB powder into 100mL of warm distilled water was incredibly easy. 5/5!!!! Just wish it was somewhat cheaper.

27 de fevereiro de 2026
Opinião espontânea
Classificada 5 em 5 estrelas

I LOVE CZTL! Second to none.

I LOVE CZTL, they have always given me 110% quality grade A MB.

Thank You CZTL Team - will continue to order and recommend ya'll as I have been! Much Appreciated.

1 de dezembro de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Fantastic Products!

Fantastic product with fast and on time delivery. I also like that they send the 3rd party purity testing results along with the order.

25 de novembro de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Great Quality & Fast Shipping

Great quality, fast shipping, and by far, the best price anywhere. This is very easy to mix. I love being able to purchase the dry powder to mix it myself so I know it's always fresh. I will definitely purchase from CZTL again. This brand was suggested to me by a Naturopathic Doctor friend.

5 de novembro de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

I just recieved 10 grams that I…

I just recieved 10 grams that I haven't opened yet. I am on the last gram of a 5 gram pack I ordered several months ago. CZTL is as good as the best I've tried. I love this blue stuff.

16 de novembro de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

CZTL

I have no problem with this company, and know product works by way I feel. Also CZTL had problems with shipping due to customs issues. Once resolved I got my shipment in a timely fashion, and they kept me informed on prior delay.

9 de outubro de 2025
Opinião espontânea
Classificada 4 em 5 estrelas

My package was not delivered

My package was not delivered. Customer service gave me a replacement delivery after several days back and forth. MB is a solid product.

6 de agosto de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Everything SUPER

First time I ordered. My package had not arrived and a new one was delivered immediately. The product itself is of the highest quality. A super company with super service and super product. They have me as a new loyal customer

4 de agosto de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Easy Peasy

Easy to purchase, quick shipping and great communication on my order. No issues at all!

1 de julho de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Was very happy!

Was very happy with their website, service, shipping, and the quality of this potent product. I decided to do my own research and experimentation and am excited at the results so far. I am thankful for CZTL!

1 de junho de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Quick ship

Quick ship. Third party tested, easy mixing directions. Using off an on a couple of years, going to start regularly again. Saw it on the FLCCC website, pretty trustworthy I think. Had worked up to 26 drops a day and think it helped with memory. You know when you just can't think of that word!!

1 de junho de 2025
Opinião espontânea
Classificada 4 em 5 estrelas

Non-existent Support Team

Update:
Customer service refunded me my order, so I ended up getting the product i ordered free of charge as they said the cost of returning the product would not be worth it. Thanks to the team for their generosity.

My advice to other customers who might need the product fast: buy it from the CZTL store on amazon, you'll get it much faster and might even get next day delivery.

-----
Made an order and decided to purchase from their store on Amazon instead as it would be faster (got it the next day). Emailed the support team multiple times to cancel my order, but no one replied. Order was somehow shipped out despite no being given a reply by the support team (arrives in a week). I don't suppose I will have an easy time returning my order either.

28 de maio de 2025
Opinião espontânea
Classificada 5 em 5 estrelas

Easy Ordering

Easy to locate amount needed, easy to order, delivery was quick and items wete secure and well packaged. Additionally, price was outstanding and I'll be ordering from this company in the future

14 de maio de 2025
Opinião espontânea

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