Let me start with my situation. I'm 40 years old and work in sales, traveling frequently for business and attending social dinners. Over the past two years, I've clearly felt my energy declining, especially when it comes to that aspect—I often feel inadequate, and the duration is unstable, sometimes ending in just three to five minutes. I previously tried topical sprays, like the Japanese Black Panther endurance spray, which worked okay, but it always left a bit of numbness afterward, and my wife didn't like the smell. Later, I saw someone online recommending the German-imported Black Diamond Delay and Strengthening Capsules (10 pills, male endurance, energy boost), claiming they could last 120 hours with no side effects, so I bought a box to try.

The first time I took it was on a Saturday night, two hours after dinner. Following the instructions, I chewed one pill and swallowed it with warm water. After about 20 minutes, I didn't feel any change and thought it wasn't working. But then, around the 40-minute mark, I suddenly felt something—not a strong urge, but a gradual sense of strength down there. Just thinking about it made it hard, and the firmness was much better than usual. That night, my wife and I tried it. During foreplay, it was already very hard, and after penetration, I felt much more in control. It lasted about 20-plus minutes, and my wife was quite satisfied. Over the next few days, I noticed morning erections every day, and they were quite firm. This state lasted for about two days, and I still felt something by Monday morning.

I took it three or four more times after that. Here's a summary:

However, side effects were also apparent: Two hours after the first dose, I felt a bit dizzy, like after drinking a little alcohol—not severe, but it lasted about an hour. That night, I couldn't fall asleep until after 2 a.m. because my brain was too active. The dizziness didn't recur in subsequent doses, but my sleep was still affected—I woke up easily. The ads claim no side effects, but I guess it might vary by individual.

I also found that you can't take this pill too frequently. Once, I took one pill on two consecutive days, and on the third day, I felt my heart racing a bit and had a dry mouth. It went away after a day off. So now, I take it at least every three days, or only on weekends.

Comparing it to other products I've tried:

Black Diamond falls in the middle range, with effects and side effects between sprays and strong prescription drugs. It's suitable for those who don't want the numbness of sprays or the intensity of potent medications.

Finally, the downsides: First, the capsules are too large and hard to swallow. I chewed them, but the bitter taste was strong. Second, they're not cheap—a box of 10 costs over 300 yuan, which hurts if used long-term. Third, the effects are inconsistent—sometimes one pill lasts two days, sometimes just over a day, possibly depending on diet and condition that day.

My advice:

If you're trying oral delay pills for the first time, start with half a pill to see how your body reacts. Also, don't expect it to make you "invincible"—it just helps you regain the state you had when you were younger.

By the way, I previously wrote about my experience with Levitra 100mg. Here's the link: 40歲用樂威壯100mg到底合不合適我的真實體驗-mpwufop30. You can compare and reference it. There's also a comparison between Indian Super Avana and Green Diamond: 用過印度超級艾力達和綠鑽告訴你持久產品怎麼選-mpvemum00.