Dynamo Delay Spray Review: Strong Numbing And Longer Sex


Dynamo Delay is a strong desensitizing spray that men with premature ejaculation might benefit from. It starts working very quickly, is easy to use, and has an effectice numbing action.

I found it helped me last considerably longer during sex, and with minimal side effects.


  • Strong numbing.
  • Helps with control during sex.
  • Starts working quickly.
  • Lasts for more than an hour.
  • Metered pump for consistent doses.
  • Fine for oral sex.
  • Works with or without a condom.
  • Good price.


  • Not a cure for premature ejaculation.
  • Too much can affect erection quality.
  • Might cause tingling.

My experience using 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.

photo showing the safety locking mechanism on the bottle of dynamo

Applying it

I ignored the three sprays instruction and started with one 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

Five 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 ten minutes longer, for you it might be a different length of time.

So really, the effect was more than 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 an hour an a half before slowly wearing off over the next 30 minutes.

Side effects

With one spray, I did have a tingling sensation. It was tolerable though, and not as noticeable as some other sprays which feel more like burning than tingling!

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.


If you’re looking for a cost-effective and strong delay spray, 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 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.

Additional information

Who makes Dynamo?

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

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 one 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 have a shower) if you plan on oral or unprotected sex.
  4. Wash your hands too so you don’t get it in the eyes.
  5. Wash after having sex.
  6. Decide next time if you need two or more sprays, and if you want to apply to the shaft as well as the head.