RCB Online


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RCB re-ship all customs seized packages for free

♥ Specials from RCB:   you can always select some free samples with each order!   we guarantee 100% delivery, re-ship is always free!   ♥
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Shop News

We can not ship to Australia now due to bad delivery, will noticde when we can again!

A new stimulant product EU36 get in stock!

mdpep restocked!

New cannabinoid product 7a19 get in stock!

New stimulant research chemical DCC stocked! better effect than eutylone!

Some popular benzos like etizolam, diclazepam, clonazolam, flubromazolam will be off supply from July, if you in need of those please make order before July!

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How customers say
5 out of 5

Good quality

January 14, 2021
5 out of 5


Eric Amatangelo
January 14, 2021
5 out of 5

I was on the fence about ordering from these guys at first, but was like screw it. It's worth a shot. Boy oh boy am I glad I did! Shipping took a couple weeks but I expected that. Packaged very well to make sure if it doesn't get opened and inspected it should go straight through customs. If they do catch it though you get a free reship! I was actually shocked when I received my order. Extremely well packaged and discreetly as well. I only ordered I think 2g of flualp and clicked on free sample for eutylone twice. Surprisingly enough to me, they sent me the free 2 g ofv eutylone! I haven't tried the flualp yet, but I have high expectations now. I've been trying to keep placing orders through a couple different vendors so I can try to start to stock up on some stuff. So I have flualp pellets right now that I'm using; until I figure out the dosage for this flualp powder. I saw this mentioned in another comment and it's the only thing "bad" I can find to say about my order. This was an order of 2 different little bags of powder. I had zero clue which was which and what was what. The baggie of eutylone had "TY" written on it in black magic marker and the other baggie has "F1" or "Fl" written on it faintly. So I took a a bit of a gamble when I first went to try my products. Other then that, I can't think of anything bad to say so far. This was my first order. I already have a cart filled and ready to place another bigger order once I get paid. My hope is they go above and beyond like I'm reading they're doing for ask these other customers that are leaving reviews.

January 11, 2021
5 out of 5

Yo this website is the most legit biz in this industry, it doesn't get any better than this company !!! I was extremely worried during my first order but sure thing in 24 hrs I had my tracking# and my package was delivered to the south east coast in 8 days !!!! They have the purest chems around. Fastest shipping!! With test coming back at almost 99.8 % pure. Good good primo stuff !! So bc I was nervous I only ordered 1 gram with a sample to see if it would even show up and wanted to make sure they were legitimate. They accidentally sent me the right sample but the wrong main 1g chem. So I immediately emailed them attaching a picture of what I received and a screen shot of my actual order. They didn't blink and eye and they stayed true to there word! Not only did the send me the replacement chem but they also sent along another free sample and they let me keep the original order that they messed up for free so I got 2 gs and 2 samples for the price of one !!! I mean it just doesn't get any better than this in this industry they are top notch!!! Do not listen to anybody who tells you different they are lying, This company is absolutely amazing and I wish I would've found it sooner.!!! I hope this helps some of y'all from having buyers anxiety like I had, I'm here to tell you they are the real deal !!!! My biggest advice is this is just be patient, and they will tell you the same thing actually !! lol Also be patient with the tracking number cuz it takes about 24 hours to receive it and then be patient for the delivery it will come guaranteed and if it doesn't they will reship it for free!!! Take it from me that's exactly what happened true story !!!! Thank you RCbest you guys are well.....The BEST!!!!! THANK YOU FOR YOUR AWESOME BUSINESS !!! HOPE TO DO MUCH MORE BIZ FOR YEARS TO COME!!!!

November 28, 2020
5 out of 5

Excellent Product!

May 3, 2020
5 out of 5

Extremely pure!

April 30, 2020
5 out of 5

Product is excellent. Very pure.

Jordan gerioux
April 22, 2020
5 out of 5

When I came across "RC Best Sell" during a Google search for a new source for CLONAZOLAM - my current main focus in my research, I thought the name and the prices and how you used to be able to pay with PayPal was way too good to be true. It took me months to convince myself to send the crypto and see if I would receive any of the products I ordered - being of any quality at all- or if I would even receive any products. Within a few hours of paying my crypto I got my confirmation email, and a personal email saying not to worry that I had not quite sent enough money to cover the crypto fees (Aerospace and Chemical Engineer here, still never get it right). I didn't even have time to get worried enough about my orde to check my tracking number before my package of what was labeled Clam, 2FDCK, and FLam arrived 11 days after I paid an insufficient amount of money for my order. So being who I am I immediately jump to the conclusion that all of these powders are fake or mislabeled because the CLONAZOLAM was pure white and more crystalline than all other 15 times I've ordered grams of Clam. Clam is usually canary yellow. Having a background in chemistry I do realize that different synthesis procedures among other things can effect things such as the color of your final product. I am analyzing and researching now but I truly believe this clonazolam to be white because it is so pure/ may have used different synth which does not leave behind the yellow that I now believe to be an impurity in 90% of the world's Clonazolam. I believe this because of the ease of solubility in either ethanol or PG was markedly easier, suggesting a more pure product. Also it makes absolutely no sense that the absence of the yellow tint is due to an impurity. Could be incomplete synthesis, but no. This is the finest Clonazolam that can be found on the planet. It leaves my research equipment noticebly less corroded, and my lab rats experience very little body load and bad side effects that are generally due to impurities. This Clam is 98%+, for pennies, in days, guaranteed. We must all do everything we can to make sure RCB stays around and functioning to this level. I had never researched 2FDCK before so I cannot compare, but can say that it is an absolutely amazing product that I also would believe to be 98%+. The Flubro..... Bro this is the gnarliest benzo on the planet, prepare your equipment and start research with rats at doses you would think you would give to something the size of an Ant. The Flubro is 98%+. Thank you guys so much for what you do and allowing us to entertain ourselves in the way that we choose, and that we enjoy, like human beings should be able to.

October 19, 2019
5 out of 5

5/5 my friend. Message me.

August 13, 2019
5 out of 5

Amazing! Wowza! Got here in 13 days!

Justin Whitesel
August 13, 2019
5 out of 5


August 4, 2019
5 out of 5

Best on the market period.

A happy customer.
April 4, 2019
5 out of 5

Best ETZ I have ever worked with, hands down! I have worked with this product, in powdered form, for over 6 years. Lost my domestic supplier last July,thought all hope was lost. I have used a few, but stuck with one main US based one until he had to shutdown. I was quite satisfied with that product, but RCB's surpasses even that one, by far! I did have to do a reship, as my 1st order was placed on previous site . But, once I waited the 30 days and paid my reship fee, my product arrived in a mere 3 weeks! And, with the current stealth and shipping, I don't forsee needing to do a reship anytime soon! You will need to sign for your package-do not fear this . It's part of what makes the whole process more efficient, and safe for us, and RCB! For those confused by using BTC I use LibertyX to find a local store to buy BTC with cash, and it is in my wallet before I walk out the door! I pay the "fast miners fee". From that point, it's just a matter of copy and pasting wallet addresses, and you are all set! I have no affiliation with this company, aside from being a new, true blue customer! I left a few reviews on a popular thread for this company (on another site) using this same name. I reviewed after 1st research, and an update 2 weeks later. Let me just say, the more research I do with this product, the more I love this product! Very pure, very PGA soluble. I highly recommend using a volumethic method with all products like this. Help keep our community safe, and out of the attention of 3 letter agencies! Ok, I have rambled enough. Lol RCB rocks!! They are 100% legitimate, polite, and professional. And, product is absolutely the best I have ever worked with! Like i said i worked with this product for many years and many sources, but now I have found my new go to source! Thanks RCB, you guys are amazing! I will buy from nowhere else as long as you guys are around!

February 25, 2019
5 out of 5


October 9, 2018
5 out of 5

Just as described

Andrea Mendoza
September 25, 2018
5 out of 5

Good quality

August 23, 2018
5 out of 5

great production

Connr Fychan
June 15, 2018