Dynamo Delay Spray Review

dynamo delay spray


Dynamo Delay is the strongest of the many delay sprays I’ve tried. The lidocaine content should numb you well, reducing the sensitivity during sex to help you last longer. Assuming your difficulty with endurance during sex is caused by physical sensitivity.

You need to make sure you use the correct amount, which might need some trial and error. But once you know how much to apply, it’s fast-acting, effective and is reasonably priced. So this is one that I recommend trying, especially if your budget is tight at the moment.

Who makes it?

Dynamo is made by the adult sex toy company Screaming O, which is based in the United States. They pride themselves on having won awards for some of their sex toys.

Very few of these sprays are made by pharmaceutical companies. So it’s at least reassuring to know there’s a company you can contact with questions.

I got in touch to find out more about the spray and found they were helpful and friendly to communicate with. It’s also worth noting that Dynamo is FDA compliant, which means the manufacturer has tried to make it responsibly.


The active ingredient is Lidocaine USP 13%. That translates as approximately 10 mg per spray.

Interestingly, this makes it the highest concentration of lidocaine I’ve seen in a spray. The company suggests that it means you’ll get more in the bottle.

To me, it also increases the risk of too much numbing, which I’d be looking out for.

The inactive ingredients listed are:

  • Isopropyl Palmitate
  • SD Alcohol 40B
  • Stearic acid

How to use Dynamo Spray

photo of a bottle of dynamo spray being pumped in the air

The package has the following instructions:

Apply three or more sprays, not to exceed 10, to head and shaft of penis before intercourse, or use as directed by a doctor…Wash product off after intercourse.

There are some more instructions on the website. They recommend waiting 5 to 10 minutes before having sex. And to wipe with a damp cloth if you plan to have oral sex.

My tips for using the spray

Over the years, I’ve developed a more cautious approach to using delay sprays. Here’s what I’d do:

  1. Spray your forearm once and wait to see how your skin reacts.
  2. Just use 1 spray first time, and only on the penis head.
  3. Wait for 5 to 10 mins and then wash off any residue with a damp cloth or shower if you plan on having oral or unprotected sex.
  4. Wash your hands too so you don’t get it in the eyes etc
  5. Wash after having sex.
  6. Decide next time if you need 2 or more sprays, and if you want to apply to the shaft as well as the head.

My experience using Dynamo

photo showing the safety locking mechanism on the bottle of dynamo

My first impression is that they used the exact same bottle as Promescent. It’s the same size, has the same child safety lock and a similar metered pump.

At the end of the day though, it’s good it has that safety lock. And the metered pump is much better than the aerosol sprays, as it’s easier to apply the same dosage each time.

Applying it

I ignored the 3 sprays instruction and started with 1 as always. It’s usually enough for me anyway and I don’t like being so numb it only feels like I have half a penis. You’ll know what I mean if you apply too much…

There was no noticeable smell, which is a plus. And the spray was easy and quick to massage into the skin, without leaving a sticky residue. So far so good.

Effective numbing

5 mins later and I could already feel it taking effect. 10 mins later after a quick wipe with a cloth, I called my partner into the bedroom.

We started with oral sex, which is an important hurdle not all sprays pass. Dynamo was fine though – only a slight chemical smell, which is as good as it gets, and no transference to her mouth.

I was definitely feeling numb on the penis head. And after some foreplay, we moved on to sex.

Longer lasting sex

As is always the way with these sprays, the pleasure was definitely reduced somewhat – especially on the penis head.

But the sensitivity was also significantly calmed. That meant I felt in good control, and was able to last a fair bit longer.

I don’t time sprays these days – experience has taught me that it just works or doesn’t. But even if it helped me last 5 mins longer, for you it might be 1, 2 or 10 – there’s just no way to tell.

So really, the effect was good enough for me. Yes, it reduced some of the pleasure. But it left me with enough sensation to enjoy sex, and last longer.

Finally, the numbing lasted around 1.5 hours before slowly wearing off over the next 30 minutes.

Side effects

With one spray, I did have some tingling sensation, but it wasn’t that bad, and not as noticeable as some other sprays which actively burn.

The next day I tried with three sprays, and found that was way too much for me. The tingling feeling increased to an uncomfortable level, I found it difficult to get an erection, and had zero sensation where I’d sprayed it.

So as always, I recommend erring on the side of caution. Start with one or two sprays and only add more the next time if you feel you need more numbing.



  • Strong numbing, which some men will prefer.
  • Works fast – just 5 to 10 minutes.
  • Has a metered pump to help you apply the same amount every time.
  • Absorbs well without leaving a sticky residue.
  • Can be used with oral sex, and with or without a condom.
  • It’s made to be FDA compliant.
  • With the right dosage, you can still feel enough sensation to enjoy sex, but with more control.
  • Relatively low price, with many sprays per bottle (though to be fair, each spray seems quite small).


  • As is the case with all desensitizing products, it doesn’t cure premature ejaculation.
  • There’s a faint chemical smell.
  • The high dosage of lidocaine means that if you apply too much, it can make it difficult to get an erection or enjoy sex.
  • Produces a tingling sensation, which might be unpleasant for men who are more sensitive to lidocaine.


If you’re looking for a cost-effective and strong delay spray, I think Dynamo Delay is a good choice.

If you find these type of sprays work for you, but only if you apply a ton of it, then Dynamo’s stronger formula might help you save some money in the long-run.

However, if you’re sensitive to lidocaine, and ever have difficulty getting an erection because of feeling too numb, then it perhaps isn’t right for you.

On the whole, my wife and I were quite impressed with how it worked. It’s particularly good that there’s only a faint smell and taste, so if you’re into oral sex, it won’t ruin the fun.

12 thoughts on “Dynamo Delay Spray Review”

  1. Hi Ethan,

    Thank you for such a nice article. I am new to delay sprays and would like to know if used once or on regular basis, do this spray has long term side effects like a problem in getting a child or likely some serious problem?

    Thank you.

    1. Ethan Green

      Hi John
      You’re welcome – good to hear you liked it.
      I don’t know is the honest answer. I haven’t seen research saying one way or the other what might happen if you use them daily for years for example. In terms of children, I know some say not to use the spray if trying to conceive at the time.

  2. Thanks Ethan

    There I was getting ready the weekend to apply 10 shots, I will definitely knock that down to 2 after reading your informative straightforward review.
    Much appreciated

    1. Ethan Green

      You’re welcome! And yeah, 10 shots would have numbed you for ages!

    1. Ethan Green

      Thanks Tebza. Well, there can be side effects like tingling and erection loss, but no more that I know of.

  3. Really enjoyed this article.
    My question is and I think you spoke briefly about it, but does it prevent an erection? Can it be used in addition with other lubrications?
    Thank you

    1. Ethan Green

      Hi James
      All of these sprays can cause erection problems for some men – it’s difficult to predict if you will struggle or not. I think you can use it with other lubes.

  4. Toussaint

    Great and easy review to understand. Just want to know if I don’t wipe off but I waited for 15-20 minutes for it to dry then use a condom. Will the numbness transfer to my partner? Thanks

    1. Ethan Green

      Hi Toussaint
      I’m glad you liked the review. Personally, I wouldn’t take any risks. Even though using a condom will probably shield the numbing, it doesn’t take much to rub it in and wipe off the excess. Even if you just quickly wipe off what doesn’t rub in rather than washing or wiping extensively, it will help reduce the risk.

  5. Great review, thanks Ethan. How would you say this one measures up against Promescent and Stud 100? Cheers

    1. Hi Mark
      I’m glad you liked the review. Well, I’d say it’s similar in many ways. There’s slightly more lidocaine, so it’s probably a bit stronger. But really, I had quite similar results with all three of them.

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