Let me start by explaining why I began researching these things. I'm 42 years old and work as a manager at a tech company. In recent years, the stress has been high, I often stay up late, and my physical condition is indeed not what it was in my early thirties. The most embarrassing part is that a few times when I was intimate with my wife, I "finished" in less than five minutes. Seeing her disappointed look, which she tried to pretend was fine, really shattered my male ego.
I used to buy cheap sprays online for a few dozen bucks, but after spraying, my entire lower body felt like it was numbed by anesthesia. I could get hard, but there was absolutely no pleasure—it felt like I was moving against a piece of wood. That experience was terrible, and I threw it away immediately. Later, after doing some research, I came across higher-end brands like German Imported EROS Yilusi 101 Male Prolonging Liquid, Super Extended Time, Authentic with Anti-Counterfeit Verification, and also tried the well-reviewed Japanese Black Panther series. Over the past month, I've used them seven or eight times and recorded my real experiences.
First Attempt: The "Slow-Burn" Feel of German EROS 101
I bought this bottle of EROS 101 because I heard it's made from pure plant extracts without Western anesthetic agents. The first thing I did when I got it was scan the QR code to verify its authenticity—after all, it's for use on private parts, so safety is paramount. The bottle design is quite understated and doesn't stand out on the nightstand.
My first test was on a Friday night. Following the instructions, I sprayed it about 30 minutes before starting, after showering. I applied two sprays to the coronal sulcus area. Right after spraying, there was a slight cooling sensation, which faded after about 3 minutes. This was much better than the cheap stuff I used before, which felt burning hot upon application.
After about 20 minutes, I tested it myself and noticed that sensitivity had indeed decreased, but tactile sensation remained. That night, the entire session lasted about 25 minutes, nearly 20 minutes longer than usual. What pleased me most was that there was no lingering numbness that wouldn't wash off afterward; the feeling returned to normal completely after about an hour.
Comparison Test: Japanese Black Panther Third and Fourth Generations
After using the German product a few times, I tried the Japanese Black Panther. This brand has a big reputation in forums. I first tried the Japanese Black Panther Prolonging Liquid Third Generation Upgrade, Male Delay Spray for Premature Ejaculation, 3D Packaging (Prolonging Liquid), which has a distinctive packaging. The third generation's sensation is slightly more noticeable than EROS 101—about 1 minute after spraying, there's a mild warming feeling, but it's not uncomfortable. It works quickly, with effects noticeable in about 15 minutes. For spontaneous situations, the third generation is more suitable than EROS.
Later, I also tried the more potent Japanese Black Panther Prolonging Liquid 4th Generation Male Delay Spray, Premature Ejaculation Spray, New Upgrade (Prolonging Liquid). The fourth generation's delay effect is indeed stronger—based on my experience, it allowed me to last nearly 40 minutes, and I even felt a bit tired by the end. However, the fourth generation has a minor drawback: the odor is slightly stronger, with a faint herbal scent. If you're sensitive to smells, you might need to wait 20 minutes after spraying and then rinse it off.
Several Pitfalls and Precautions Regarding "Topical Prolonging Liquids"
After using these products, I've summarized a few common mistakes beginners make:
1. Incorrect Spraying Location: Never spray directly on the urethral opening, as that will have you spending the rest of the night in the bathroom. The correct spots are the coronal sulcus and the underside of the glans. If you're unsure about the exact location, you can refer to this article: Key Points to Read Before Purchasing Japanese Marumori Prolonging Liquid Male Delay Spray - About Time, Dignity, and the Warmth of Late Night - mo9fmkcc0, which covers usage techniques in detail.
2. Timing Not Right: Many people spray and start immediately, only to find no effect. These products need time to absorb. Generally, topical prolonging liquids require at least 20-30 minutes to reach optimal effectiveness.
3. Spraying Too Much: The second time I used EROS 101, I greedily sprayed four times, and that night I almost couldn't "finish," ending up with a sore back. I recommend starting with 1-2 sprays to find the right dosage for you.
If you feel that relying solely on topical sprays isn't enough for stamina, I've also tried combining them with oral supplements, such as German Black Ant Essence Tablets, Viagra, 24-Piece Large Box, Male Vitality Energy Supplement, Gift or Self-Use (Male Prolonging). These mainly boost overall energy and hardness. Sprays manage "time," while oral supplements manage "power." The combined effect is indeed different, but I suggest not doing this every time—your body still needs more exercise.
In-Depth Comparison: German EROS vs. Japanese Black Panther
To make it easier for everyone to see, I've compiled a comparison of my experiences during this period:
| Dimension | German EROS 101 | Japanese Black Panther Gen 3 | Japanese Black Panther Gen 4 |
| :--- | :--- | :--- | :--- |
| Onset Time | About 30 minutes | About 15-20 minutes | About 15 minutes |
| Delay Duration | Increases by 15-20 minutes | Increases by 10-15 minutes | Increases by over 25 minutes |
| Numbness | Very low, almost natural | Low, with slight warmth | Medium, with noticeable control |
| Odor | Almost odorless | Mild herbal scent | Moderate herbal scent |
| Suitable For | Those seeking a natural feel | Beginners trying it out | Those seeking maximum duration |
If this is your first time with such products, I highly recommend reading the analysis in this article: 5 Reasons Why Japanese Maruei 2h2d Platinum Prolonging Spray 10ml - Male Delay Spray - Includes Travel Size, the Top Choice for Beginners to Overcome Premature Ejaculation - mo7dyegg0. Many of the points it raises align closely with my actual usage experience.
What I'm Not Satisfied With
Although these products are useful, there are two things that bother me:
First is the "need for planning". You have to prepare half an hour in advance every time. Sometimes, when the mood is right, you have to find an excuse to go to the bathroom to spray, which really kills the vibe. It would be perfect if there were a product that works in 5 minutes.
Second is the cleaning issue. Although most products say you don't need to wash it off, I've found that if I don't wash it off before penetration, my wife sometimes says she feels a bit numb too, which affects her experience. So now, I basically spray, wait 20 minutes, and then go to the bathroom for a quick rinse. It's a bit troublesome, but it's better for both of us.
Conclusion: Do You Really Need It?
If you can usually last over 10 minutes, there's no need to use it daily—it's fine for adding a bit of spice occasionally. But if, like me before, you're experiencing "premature ejaculation" due to work fatigue and stress, then German Imported EROS Yilusi 101 Male Prolonging Liquid is indeed a good solution. It can help you regain confidence and break the vicious cycle of "the more you fear being fast, the faster you become."
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