Jamaican Stone – Is The Strength Worth The Danger?

photo of 3 pieces of jamaican stone

Jamaican Stone is one of the more unusual ways to last longer during sex that I’ve tried.

Not only is it marketed as a way to have longer sex, but it’s often advertised as giving stronger erection too. However, the phrase ‘too good to be true’ might apply in this case.

It was banned by the United States Food and Drug Administration after someone died from eating it, and the ingredients have been found by researchers to be potentially dangerous (more on that below).

Having said that, it’s still a popular product in a few communities around the world, where some men swear by its potency.

In this Jamaican Stone review, I’ll cover both my experience using it and some useful background information about the safety concerns.

What is Jamaican Stone?

Jamaican Stone is sold as a sexual performance enhancer. It’s said to be harvested from the tree sap of a tree native to Jamaica and some other Caribbean Islands.

It’s then molded into a block/stone shape, like the ones you can see in the image above. The standard size is between 0.5 and 1 inches.

It’s also known as Jamaican Black Stone due to the color of the finished product, though it’s possible to find it in other forms, such as drops or gels.

Strangely, nobody seems to know the name of the tree it comes from. It doesn’t say on the packet, and no supplier website mentions the name.

And here’s the worrying part – after it caused a death, it was reported that some versions contain toad venom from the Bufo genus.

Apparently, both the toad venom and the tree sap contain chemicals known as bufadienolides, which can disrupt the normal rhythm of the heart. So no matter where it comes from, it doesn’t exactly seem the safest option.

My experience using Jamaican Stone

I couldn’t find any scientific research into the effectiveness of Jamaica stone for premature ejaculation, so I was a little in the dark when testing it.

I ordered it online and it arrived a week later in an unmarked packet. I followed the instructions, but I don’t think I applied it correctly the first time using it.

A common problem with desensitizing products is working out how much you need. If you apply too much, you risk numbing yourself to the point of feeling nothing or having trouble getting an erection. On the other hand, if you use too little, it might not work at all.

Burning sensation

I had an unpleasantly hot sensation which took around 15 minutes to subside after washing it off thoroughly. It probably took another 30 minutes for the tingling sensation to go away completely.

The second time, I was more careful and just rubbed a couple of small drops on. This time there was still a hot tingling sensation, which again took a while to subside, but it was more tolerable.

It seems to take about 10 minutes to have a noticeable effect, but 20 to be at the maximum desensitizing potential.

Good numbing, but no change in erection strength

The numbing effect was definitely effective, and there’s no doubt that using Jamaican Stone allowed me to have sex for longer. However, it wasn’t as long as the four hours some sellers claim.

Did it have the other effect of giving me a stronger, harder erection? Not as far as I could tell. Maybe that part is a marketing gimmick, or maybe it just didn’t work on this occasion.

The numbing did last for several hours, which was much longer than most other delay products I’ve tried, which tend to wear off in a couple of hours.

I tested it a few more times and had a reasonably good improvement to my lasting time during sex each time I used it. So on the whole, it did what it was supposed to do, at least in terms of helping delay ejaculation.

I’d say the effect was similar to other desensitizing products, like those containing lidocaine. So considering the potential risks of Jamaican Stone, I’d personally prefer to stick with a delay spray instead.

Further information

How to use Jamaican stone

  • Apply a couple of drops of water onto one surface of the stone.
  • Rub the water on the stone in a circular motion until it turns into a milky colored liquid.
  • Gently rub that liquid onto the sensitive parts of your penis. Concentrate on the head as this has the most sensitive nerve endings.
  • You’ll need to test exactly how long you need to wait before having sex. It could be anything from 10 to 30 minutes, so some experimenting is needed.
  • Before you have sex wash off any excess liquid with some mild soap.
  • Dry the stone and store it. It can last for several months if you care for it properly.

Possible issues and side effects

  • The main side effect is the burning sensation if you put too much on.
  • Even when you get the amount right, you still have to put up with a hot tingling sensation.
  • It’s not a good idea to use Jamaican Stone during oral sex because of the dangers of eating it. It also has an unpleasant taste.
  • The numbing sensation is strong, so could reduce the pleasure of sex.
  • The risk of serious harm – see the following section.

Death reported in the news

jamaican black stone

In 2008, many U.S. news outlets (such as ABC), reported that the New York health department was warning people not to use Jamaican Stone. This was apparently because a man died after eating it.

The warning also reported that similar versions were behind poisonings and deaths in the 1990s. Obviously, it’s not meant to be eaten, but they do further warn that even applying it to the skin can be harmful.

In 2017, researchers published a report of a case of a man who died of heart complications after ingesting the stone.

Some clarity regarding the ingredients

In 2017, Spanish researchers undertook a rigorous scientific analysis of Jamaican Stone to identify the exact ingredients.

They concluded that it has toxic ingredients and described it as a ‘dangerous aphrodisiac’. You can read their full research article here.

Problems buying online

Following all the comments from readers asking where they can get it, I did some research into the online sellers.

I encountered one problem after another, mainly with security warnings about the websites and payment systems with low review ratings.

My personal view is that this product should be avoided, especially as there are safer alternatives.


There are alternatives that don’t present the same problems as Jamaican Stone. If you’re interested in trying a desensitizing product, I recommend taking a look at my overview of delay sprays.

Your experience

Please feel free to share your experience with Jamaican Stone in the comments. Please don’t ask me where you can buy it, or leave links for online sellers, as I no longer publish those kind of comments.


  1. I had picked up the black stone in Panama…it’s way just 5mm by 3 mm pieces which were black in colour…I dint think they would work……I tried them out and they really do work…u can go on easily for 3 hrs…my wife begs me to stop …u require to put some water in the palm of your hand and rib the stone till the water is a little milky…then apply it to the gland of the penis…for me I require to keep it for a minimum of 15 to 20 mins…then there is a slight burning sensation.. wash it off with soap properly 2 as recommended and then it will burn slightly for 30 to 45 mins which is very bearable….it’s like the sensation that u get when u piss after a very long time….but the result is really just awesome..

  2. The cons definitely outweigh the pros in this case especially when there are so many other alternatives. Something that burns like hell (I’m quoting others) and irritates the vagina isn’t worth it especially if you care about the person you’re with. Even if you can last two hours the vagina will begin to dry up just from the rubbing and there goes the fun. If she’s not enjoying it then what’s the point? I’d rather have 15 good minutes where we both enjoy it than this one-sided sex. This thing is too dangerous and isn’t worth the risk. Nobody asks the women if they actually want to have intercourse for two hours straight. My guess is very few. Men only ejaculate once or twice in those hours but how many times does a woman have to come before we’re satisfied?

  3. I had a bad experience with it. Not gonna use it again. I think I added too much and I had severe uncomfortable burn on my penis and balls. It was unbearable!

  4. Thanks for the info and I wish to give it a trial to correct my premature ejaculation. However, my main concern is after washing it off, I hope it’s not dangerous for my lady to give me oral because this is also important.
    How do we address this?
    Hope to hear from you soon.

    • Hi Michael
      I think you have to be very careful in washing it after it’s rubbed in. Personally, I would have a shower to make sure there is none left that would end up in her mouth.

  5. Well, sometimes it works and sometimes it doesn’t, yes I don’t eat it, I apply as recommended and wash it thoroughly after 25 to 30 minutes. But it doesn’t work the same always. Sometimes it works like wow!! And sometimes , WTH was that!! And yes it can really burn if you put too much even your balls would burn!!

  6. Man I out it on first time it’s been 10 hours I’m still suffering with burning sensation pain I’ve washed it too. I don’t know if I put too much on or what but this is crazy burning feeling for ten hours.

  7. Ethan, can the burn transfer to the balls? Cos, looks like the water touch it and its burned mad. and i saw some slimy secretions from the balls.

  8. I worked all thru the Carib. in the 80’s and loved it. I got it from any downtown area. It really works, but don’t overdo it.

  9. Yo yo !will there be any consequences after the frequent use of this stone, something like getting used to a stone and you can’t do anything without it after ??? Or you cant often use it ??

    • Hi Kraken

      Hard to say what the increasing risks are with regular use. As I’m sure you can guess from the article, I would err on the side of caution!

  10. Mam! Good I start look for informations about this Jamaican Stone (JS)!
    I had bought it in Columbia and seller just said about applying on penis, nothing about washing out after some time!

    Now I know I have to wash after 10 min.
    Since that time it was only applied.

    I using much smaller conversation.

    On wet hand JS is circled 2-3 times and that’s going on head of penis.
    Water is not milky. It is like water.
    Problem is I didn’t know about washing so it wasn’t washed out at all!

    Truth is it really works.

    Another effect is I’m physically stronger than without. I am not sweating and getting tired.
    Fact, I am football (European football, soccer) player and JS can just support my physical strengths.

  11. Thanx for sharing the good and bad about this product. Top most of all, the danger about it. Keep up the good work .

    • I used it in the late 80s when I lived in miami and got the good stuff from some jamaican friends straight from Jamaica. This stuff reallly worked everybody was using it. I used it with multiple girls I wanted to impress I was much younger then about 20 wherm my erections were as hard as a rock, and could fuck multiple times. Haven’t used the recent product its probally not the same. I’m going to try PSHOTS..look that up..

  12. Man, I tried it 3 times. At first think I used too much as my penis wouldn’t stand as it was too numb. The second time it worked. Third time applied, now it’s burning the hell out of my penis. not using again.

    • Hi Frass
      Thanks for sharing your experience. I don’t think I’d use it again either if it was that strong a reaction.

    • Yessss, yessss, yesss…ladies feel the burn and it immediately causes dryness. Very painful. -female commentator here😩😩😩😣

    • The reason for washing it off after the numbing sensation is to prevent it from affecting your partner. One shouldn’t use it too often because it can burn the sensitive part of your body. Please don’t let it come in contact with your eyes.

  13. I first used the product in 2006. I applied it as recommended, 10 – 15 minutes later I felt the tingling feeling. After going rock hard I was having sex for almost 2 hours. My ex was begging me to come (ejaculate) as she was too soar and not enjoying it any longer. I didn’t know I had to wash after applying so my ex private was burning like crazy, she had her leg open and fanning.

    A similar product is in the slam condom, that numbs the tip of your penis, 2 hours later and I still didn’t come. I buy the slam condom and wipe the tip of my penis with the substance in it or I put it on and take it off back.

  14. i’ve been using this since 2012 and it always do what it’s suppose to do, give you woman the best sex she can dream of and punished her at the same time until she finally surrender. i just hope there’s a legit online store where i can order this rather than going to a caribbean store and fall in line. specially here in Toronto, it’s hard to find this thing.

  15. Hello, I used Jamaican stone, unfortunately without success. I used it this way: I dropped a few drops on the stone and then rubbed it for about 30 seconds. Then the liquid is applied to my penile head and on the outer penis where the nerves are located along. After a short time it started to tingle and a little later it started to get hot. I washed it after 20 minutes. and started sexual intercourse after about 15 minutes. I could not stand it for a minute. Did I do something wrong? I ask for advice. Sorry for my English.

    • Hi Jamal
      Perhaps try using less and wash it sooner. But really, burning is a nasty side effect that would make me not want to use it again!

      • Hi. I bought it as well from one website, so it was interesting to try this stone. I did everything how is was saying here. But the only problem that I met was I cleaned everything after 40 mins, and u know what happened? My penis couldn’t stand for 2 days.

        • Same happened with me now… I applied little more say 15 drops… Waited 30 mins… Then had sex… After say 15, mins my penis not getting erection for last 5 hrs after applying…

  16. Hi Ethan, can you help please?
    I just bought it from the website JamaicanStoneSale.com
    In the US, this item is banned.
    What do you suggest for the description?
    So save at customs.
    And we can receive at our address.

    Pls reply.
    Thank you.

  17. I just bought it in KSA planning for vacation soon, eagarly waiting to use it then hopefully will share my experience…Thanks

    • Hi Jijo
      Sorry to hear that. I’d say don’t use it again for starters. Hopefully it will go away naturally, but if it’s still happening, I would seek medical advice.

  18. They now sell it under various names such as “China rock” for example. The main thing is to wait at least 15 min then clean yourself. My only peeve with it is that it BURNS ALOT!! My penis feels like it’s on fire for like a hour or more after I apply it. But I went from lasting maybe 2/3 minutes to 20/30 minutes. It definitely decreases pleasure as you go numb so that’s expected but still have very strong orgasms. Also make sure to dry it well after use or it could get moldy.

  19. Works Great!
    It does burn a bit, but like you said, you have to figure out how much to put. Put too little may not help you in bed.
    Put too much, it may burn a little then subside but definitely help out in bed.

    • I’ve try it on three different occasions and it work well each time. The only problem im having now is finding it. I don’t won’t to buy it online and get some garbage. So its just going to take me some time finding it. It’s basic Common Sense on how to use it. You place it under the head of your penis. In the most sensitive areas and it works well.

      • I tried it once. yes everything is true. The burning sensation. the delays. but it’s not true that it will help your penis to erect for long time. Once you’re done.. it’s hard to get erection because it feels numb. And it lasts for 2 days. Now im scared to use it again. Got it from falmouth jamaica. And im wondering where else can I used it aside from your penis.

      • Can i ask if you also feel the same way as me? Because when i applied it on my penis, it doesn’t make my penis erect, but only the hot burning feelings and numbness.. I think it will depend on how your mind is thinking..

  20. Hey, I’m very concerned about where on the head to rub it as I’m not circumcised. Can u rub it on the foreskin? It’s really sensitive to me.

    • Hi Romaine
      If you are not circumcised, then the correct way to apply it is to pull the foreskin back and rub it into the exposed penis head. If you rub it onto the foreskin, I don’t think it will work well.

    • No. Rub it on the buddy head and gently down the line of the shaft. Then let it hang dry. Don’t forget to lightly was off after when it gets HOT.

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