"RezBlock Concentrate by 420 Science - 15ml - Pipe Glass Cleaner "

I loooooove Rez block. It works really well. I usually add like 4 drops but it recommends at least 7 and it seems to still work. Also tinted light red/pinkish so you know whether or not you added it. Make sure to shake the bottle really well before you use it, or the ingredients coagulate at the bottom.

Anyone who uses cannabis for medical (like me) or recreational purposes knows how gross glassware gets and how difficult to clean. RezBlock simplifies this greatly. Just 8 or so drops in the water of my medium-sized bong keeps all parts in contact with the water resin free. All you do is rinse with hot water and the glass is clean! No need for brushes or pipe cleaners that are impossible to bend to reach all surfaces, no need for abrasives and shaking with breakage risk. I sometimes finish by swishing around an ounce or so of isopropyl alcohol to sanitize, but nowhere near the volume needed for the traditional soak & scrub.RezBlock is nontoxic and organic, but the latter means that, to avoid microbial growth, you should change the water fairly often (which you should do anyway if you appreciate good weed). It colors the water a pale orange. I have not noticed any impacts on taste or aroma.Do note that you still have to clean the bowl and the part of the downstem above the waterline the old fashioned way: isopropyl & pipe cleaners.RezBlock was a game-changer for me. It significantly made bong cleaning less odious and has thus induced me to clean it more often for a healthier, tastier experience.

I only use RezBlock on my dab rigs, so I can't attest to how well it works with resins from flower, but it sure does the trick for concentrates. I have one piece that has a cracked glass plate for a diffuser (pictured) , and it gets clogged with concentrate Fast. Like, we are talking after 4 or so dabs. I love this piece, but it was getting frustrating having to sometimea clean it multiple times a day. RezBlock helps with this, I can use the piece for multiple days now before needing to clean it. The RezBlock only works really well on the parts that the water touches, and will cause the concentrate to kind of clump up on the surface of the water, where sometimes it will stick to the wall above the point where the water bubbles up, but it still is waaay easier to clean than without RezBlock. This works wonders for those pieces that have a bunch of percs/diffusers or lots of little tubes and stuff. It will change the color of the water to a slight pink tinge, and I recommend only using about 3 drops per half cup of water, as using more can change the taste of the vapor. Not a lot, but when I do 6+ drops per half cup, it does add kind of a musty taste to the vapor. Again, I don't know how it would affect smoke, I only use it for concentrates.

Tried others this one works the best!

Ok, let me start off by saying I am a true marijuana connoisseur. I only smoke glass bongs. I own five bongs ranging from your basic straight tube to your fancy triple deca arm tree perc. I have been using Rez block in all five for about 2 months now. Does it work? Yes, for the most part. It definitely makes it easier to clean your bongs. But the downside is that the water gets dirty about twice as fast. So it actually causes you to have to change the water more. Now I don't believe in changing the water because I just completely clean the entire piece when the water gets dirty. So I'm cleaning about twice as much. Now the plus side of using Rez block is that when I do clean it's much much easier to get it 100% clean. One thing I did hear is that if you let the Rez block sit in a dirty bong for more than a few days it will actually start molding which I completely believe. I clean every one or two days so I've never seen any mold. One note I do have is that when you add Rez block to a clean bong it has a very faint citrus taste if you pull air through the piece. After your first hit it just taste like bong. You can't tast it when pulling weed through. Over all I don't think I will be buying again unless they lower the price.

I recently got a waterpipe with a couple of percs. This piece is especially prone to getting dirty over time: there's a big white block in the middle that would get super dirty, and one perc in particular, a showerhead, would get so rez'd up that it'd clog completely within a few days of using it. But with a few drops of this stuff, my glass stays nice and clean, only the water gets darker over time. This stuff has a nice cranberry scent to it, most likely a primary ingredient, and doesn't give the water or smoke any taste.

Piece water is way way better like 100% better, this was a waste of money fr. This doesn’t even do what a cap full of piece water and the rest just reg distilled water will do in a piece. No smell or taste just doesn’t work. If it does work it really doesn’t work good.

I love this product! It made my cleaning process from 25-30mins every 3 or 4 days to a 2-3mins process every 4 or 5 days! Definitely worth the price!