Bien que nous ne vérifiions pas les affirmations individuelles, car les avis reflètent l’opinion personnelle des utilisateurs, certains avis sont accompagnés du statut « vérifié » lorsqu’il est possible de confirmer qu’une interaction avec l’entreprise a eu lieu. En savoir plus

Pour protéger l’intégrité de la plateforme, chaque avis, qu’il soit vérifié ou non, est analysé par notre logiciel automatisé 24 h/24 et 7 j/7. Il identifie et retire tout contenu qui enfreint nos conditions d'utilisation, y compris les avis qui ne se basent pas sur des expériences authentiques. Nous sommes conscients que nous ne pouvons pas tout détecter, et vous pouvez nous signaler tout élément qui aurait pu nous échapper. En savoir plus

Lisez les avis des autres

Noté 5 sur 5 étoiles

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

Noté 5 sur 5 étoiles

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... Voir plus

Noté 5 sur 5 étoiles

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... Voir plus

Noté 5 sur 5 étoiles

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... Voir plus

À propos de l'entreprise

  1. Fabricant de produits chimiques

À propos de CZTL

Écrit par l'entreprise

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.

Coordonnées de contact

4,7

Excellent

TrustScore 4.5 sur 5

107 avis

5 étoiles
4 étoiles
3 étoiles
2 étoiles
1 étoile

N'a pas répondu aux avis négatifs

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Les entreprises sur Trustpilot n’ont pas le droit d’offrir des incitatifs ni de payer pour masquer des avis. Les avis reflètent l’opinion des utilisateurs et non celle de Trustpilot. En savoir plus

Noté 5 sur 5 étoiles

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 avril 2026
Avis spontané
Noté 5 sur 5 étoiles

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 mars 2026
Avis spontané
Noté 5 sur 5 étoiles

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 février 2026
Avis spontané
Noté 5 sur 5 étoiles

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 décembre 2025
Avis spontané
Noté 5 sur 5 étoiles

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 novembre 2025
Avis spontané
Noté 5 sur 5 étoiles

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 novembre 2025
Avis spontané
Noté 5 sur 5 étoiles

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 novembre 2025
Avis spontané
Noté 5 sur 5 étoiles

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 octobre 2025
Avis spontané
Noté 4 sur 5 étoiles

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 août 2025
Avis spontané
Noté 5 sur 5 étoiles

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 août 2025
Avis spontané
Noté 5 sur 5 étoiles

Easy Peasy

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

1 juillet 2025
Avis spontané
Noté 5 sur 5 étoiles

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 juin 2025
Avis spontané
Noté 5 sur 5 étoiles

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 juin 2025
Avis spontané
Noté 4 sur 5 étoiles

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 mai 2025
Avis spontané
Noté 5 sur 5 étoiles

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 mai 2025
Avis spontané

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