Let me first provide some background. I'm 35 years old and work in sales. I'm usually under a lot of pressure, and over the past two years, I've clearly felt a decline in that area—short duration, and sometimes even losing it midway. I've tried some oral products before, and they were effective, but the side effects were also obvious—heart palpitations, dizziness—my wife even got scared. Later, a friend recommended topical sprays, saying they had fewer side effects, so I started researching.

This time, I chose Japan Marumori Long-Lasting Spray, mainly because I was drawn to its claim of being gentle and non-numbing, and the price was moderate, so I bought a bottle to try.

The first time I used it was after a shower at night. Following the instructions, I sprayed twice on the glans and the coronal sulcus, then gently massaged a few times. Right after spraying, there was no sensation—neither cool nor warm—and I even worried it might not work. But about 20 minutes later, when I was in the shower and water touched it, I felt a slight dullness, and I knew it was working.

When we actually got started, the difference was noticeable. Before, I might have finished in three to five minutes, but this time I could clearly control the pace—it lasted about 40 minutes, and there was no numbness. The pleasure was still there; it just raised the threshold. My wife was quite satisfied and asked afterward if I'd taken some kind of pill. I said it was just a spray, and she didn't say anything more.

I've used it several more times since then. Let me summarize my observations:

Onset time: If sprayed on an empty stomach or after a shower, it takes effect in about 15-20 minutes. If I've just had a greasy meal, it might take over 30 minutes. Once, after eating hot pot, I sprayed and had to wait nearly 40 minutes for it to fully kick in.

Duration: Based on my experience, the effect lasts 1-2 hours, but the most noticeable effect is within the first 40 minutes, gradually fading afterward.

Numbness: This is where it really does well—there's no obvious numbness, just a slight dullness in sensation, but it doesn't affect pleasure. This is better than some other brands I've tried.

Side effects: So far, I haven't noticed any. The only thing is that if you spray too much, it feels a bit cool, but that goes away after a while.

Now for the drawbacks:

First, the nozzle is hard to control. The first time I sprayed, I used too much and wasted a lot. Later, I learned to spray it on my finger first and then apply it, which makes the dosage easier to manage.

Second, the smell is a bit odd—not fragrant, but more like a herbal medicine scent. It dissipates quickly though, so it doesn't really matter.

Third, the price isn't exactly cheap. A 15ml bottle lasts about 20-30 uses, which works out to over ten yuan per use. It's a bit painful on the wallet for long-term use.

I've also tried a few other products. Here's a simple comparison:

Japan Marumori Long-Lasting Spray for Men: Gentle and non-numbing, takes effect in 20 minutes, lasts 40 minutes, mid-range price, suitable for beginners.

German Imported EROS Ilus 101: Fast onset, about 15 minutes, but has some numbness, higher price.

German Black Diamond Long-Lasting Spray: Extremely fast onset—ready in 8 minutes—but spraying too much causes numbness, suitable for experienced users.

I've also read this article before: How to Choose a Topical Long-Lasting Spray: Key Energy Liquid vs. Three Other Products—Real-World Comparison. It's very detailed, and you can refer to it too.

There's also Personally Tested: Japan Beiliting Long-Lasting Gel—Real Feelings on 2h2d Delay Liquid, which compares gel and spray, each with its own pros and cons.

My advice:

If you're using a spray for the first time, or if you're sensitive to numbness, Japan Marumori is a good entry-level choice. But if you want a stronger effect, or if you've built up tolerance, you could try EROS or Black Diamond.

Also, sprays are just a supplement. In daily life, you should still focus on exercising, adjusting your routine, and not relying on them.

One final reminder: If you have high blood pressure, heart disease, or are allergic to alcohol, use with caution. When spraying, avoid the urethral opening—spraying too much can cause some irritation.