Having worked in a pharmacy for many years, I've seen too many men anxious about "not lasting long enough." They come to the counter, often embarrassed and confused, and the most common question is: "Pharmacist, is there something I can spray to last longer, with no side effects?" Today, let's talk about this category of products—topical endurance sprays.

Take Wannai Zhanhun as an example. This type of product falls under topical delay products. Its core principle is to reduce the sensitivity of the nerve endings in the glans through local physical or chemical action, thereby delaying the ejaculation reflex. In simple terms, it "cools down" over-excited nerves.

1. Ingredients and Mechanism: How Does It Actually Work?

Most products of this kind on the market use plant extracts combined with mild desensitizing agents. Taking this topical endurance spray as an example, its ingredients typically include Cnidium fruit, clove, borneol, and others. The logic behind how these ingredients work is as follows:

* Cnidium fruit: Commonly used in traditional medicine for drying dampness and killing parasites. Its extract has a mild local desensitizing effect, helping to reduce skin sensitivity.
* Clove: Has auxiliary circulation-promoting and mild anesthetic effects, helping to soothe local nerve excitement.
* Borneol: Provides a cooling and soothing effect, accelerating the penetration and absorption of other ingredients.

Compared to oral medications, topical sprays have the advantages of faster onset and fewer systemic side effects. However, it's important to note that any product that delays ejaculation by reducing sensitivity, if used improperly, can lead to "numbness" or even "erection difficulties," which is frequently mentioned in endurance spray reviews.

2. Correct Usage: Don't Let "Convenience" Turn Into "Problems"

Many customers report "no effect," but upon further questioning, it turns out they either used it right before intercourse or sprayed too much. The correct procedure should be:

1. Clean: First, wash the glans and coronal sulcus, and keep them dry.
2. Spray: Evenly spray Wannai Zhanhun on the glans and coronal sulcus, avoiding the urethral opening. For first-time use, it's recommended to press once and observe the reaction.
3. Wait: This is the most critical step. The ingredients need time to penetrate and be absorbed, usually requiring 20-30 minutes, until the liquid is fully absorbed and there's no obvious wetness on touch.
4. Rinse: If you plan on oral sex, or are concerned about your partner's sensitive skin, you can rinse briefly with clean water 30 minutes after spraying. By then, the ingredients have already penetrated the skin, so the effect won't be diminished.

If you feel this product isn't suitable for you, you can also compare EROS Yilusi or Japan Wannai Spray. Different formulas have varying levels of sensitivity adjustment, so be sure not to blindly mix them.

3. Safety Warnings: Special Reminders from the Pharmacist

On the path to lasting longer, safety is always the top priority. The following groups of people should definitely avoid these products:

* Those with broken skin, rashes, or inflammation: The spray can aggravate wound irritation.
* Partners who are pregnant or breastfeeding: Some plant ingredients may cause allergic reactions; it's recommended to consult a doctor or use a condom throughout.
* Patients with erectile dysfunction (ED): These products are for delaying, not for aiding erection. For men with insufficient erection hardness, using the spray alone may actually lead to complete inability to achieve an erection due to reduced sensitivity.

As for side effects, the most common one is excessive local numbness, usually caused by overuse. If redness, swelling, or stinging occurs, wash immediately with warm water and discontinue use.

4. Pitfall Avoidance Guide: Common Misconceptions When Purchasing

Many people are easily misled by terms like "miracle oil" or "fast-acting" when purchasing. For advice on how to scientifically avoid pitfalls, you can refer to my previously compiled purchasing misconceptions.

* Misconception 1: The more expensive, the better. In reality, the ingredients are largely similar; the key lies in your skin's tolerance.
* Misconception 2: The stronger the numbness, the longer you last. This is wrong. Excessive numbness not only ruins pleasure but can also lead to "no sensation," causing mid-way loss of erection.
* Misconception 3: The more you spray, the longer you last. Overuse will only cause skin redness or completely lose the ability to ejaculate, which is not worth the loss.

Before trying any new product, it's best to do a simple allergy test on the inside of your forearm. If there's no redness or itching 15 minutes after spraying, then consider using it on intimate areas.

Finally, I want to remind everyone that endurance doesn't rely solely on external aids—psychological stress, physical condition, and communication with your partner are equally important. If your premature ejaculation problem has seriously affected your life, or if you've tried multiple products without success, please visit a urology or andrology clinic promptly to rule out physiological conditions.