How to choose a topical endurance spray? This is one of the most frequently asked questions I get privately from male friends. There are at least dozens of sprays and mists on the market, with prices ranging from tens to hundreds of yuan, and the marketing claims get bolder by the minute—but how they actually perform in real use is something only trial can tell.

I've used quite a few brands over time. Today I'll compare four representative ones: KEY Men's Endurance Delay Spray (Energy Liquid), German-imported EROS Ilus 101, German Black Diamond Endurance Liquid, plus the Japanese Black Panther Gen 3 I tested before. No hype, no bashing—just real experiences.

Basic Info on the Four Products

KEY Men's Endurance Delay Spray (Energy Liquid)

This is the 2019 new packaging,主打 fast onset and delay effects. The ingredients aren't fully disclosed, but most topical endurance products on the market rely on plant extracts (like Cnidium, clove, etc.) or local anesthetics (like lidocaine). From the feel of it, KEY is on the mild side, with minimal numbing sensation.

German-imported EROS Ilus 101

A German brand, marketed as non-numbing and orally safe. Products like this typically use gentler ingredient blends to reduce suppression of sensitivity. Priced on the higher end, positioned as mid-to-premium.

German Black Diamond Endurance Liquid

Produced by German Huade Pharmaceutical, marketed as "effective in 8 minutes, extending by 30+ minutes." Contains plant extracts, but some users report noticeable numbing. Affordable, with great value for money.

Japanese Black Panther Gen 3 Endurance Liquid

The Black Panther series is a classic from Japan. The Gen 3 upgrade brought changes to both packaging and formula. It features a pure plant-based formula (Cnidium, Sophora flavescens, borneol, etc.), colorless and odorless, though some users note a faint herbal scent.

Core Dimension Comparison

Onset Time

Duration of Effect

Numbing Sensation (Sensitivity Retention)

This is the dimension that most affects the experience.

Side Effects and Sensations

Price (Estimated Cost per Use)

Detailed Usage Experience

KEY Energy Liquid Usage Scenarios

I typically apply it 20 minutes before intercourse—wash first, then spray on the glans and coronal sulcus, and massage gently. Two sprays is the standard dose. I tried three sprays, which extended time to 40+ minutes, but with slightly reduced pleasure. The overall feel is a "natural extension," without the complete numbness some products cause. It's ideal for those looking to boost endurance without sacrificing too much sensation.

Ilus 101 Experience

I didn't use this one often, mainly due to the higher price. But it's genuinely gentle—almost no numbness, and the time extension was solid (around 30 minutes). If your budget allows and you want the most natural feel possible, it's worth considering.

Black Diamond Experience

Black Diamond acts fast and is cheap, but the numbing is definitely pronounced. On my first use, I sprayed three times and overdid it—zero pleasure, like "completing a task." I later cut it to 1-2 sprays, and the effect was just right. It suits those who can tolerate numbness and prioritize duration.

Japanese Black Panther Gen 3 Experience

I detailed this one in another article—overall, it's solid and unremarkable. The slow onset is its main drawback, but the effect is consistent. The herbal scent is a minor flaw, but it washes off easily.

Recommendations by Need

Seeking a natural feel, no numbness: First choice is KEY Energy Liquid, followed by Ilus 101. KEY offers better value; Ilus is gentler.

Limited budget, seeking value: German Black Diamond Endurance Liquid—lowest cost per use, but dosage control is key.

Can plan ahead, seeking consistent results: Japanese Black Panther Gen 3—apply 30 minutes in advance for reliable effects.

Spur-of-the-moment, need fast onset: Black Diamond (8-10 minutes) or KEY (10-15 minutes).

Precautions and Tips

1. Always start with a low dose on first use (1 spray), then adjust upward once accustomed.
2. Spray on the glans and coronal sulcus, avoiding the urethral opening.
3. Rinse 5-10 minutes after application (some products don't require rinsing), but washing will weaken the effect.
4. Discontinue immediately if severe discomfort or allergic reactions occur.
5. Topical endurance sprays are not medication and cannot treat premature ejaculation. If the issue is serious, seek medical advice.

Related Products and Further Reading

If you'd like to explore other brands, check out the detailed review of German Black Diamond Endurance Liquid, or refer to my earlier Japanese Black Panther Gen 3 hands-on comparison and Indian God Oil Galato hands-on test.

Additionally, German-imported EROS Ilus 101 is also a solid gentle option.

One final reminder: the effects of topical endurance sprays vary from person to person, and my experience is only a reference. The key is to experiment and find the product and dosage that work best for you.