Frequently Asked Questions
Product Information
STUD 100® is a topical desensitizing spray containing Lidocaine USP 9.6% w/w as the active ingredient. It is designed to temporarily reduce sensitivity of the penis to help delay ejaculation in cases of premature or over-rapid ejaculation.
Lidocaine is a local anesthetic that temporarily blocks nerve signals in the skin. When applied to the penis, it reduces tactile sensitivity, which helps delay the ejaculatory reflex and prolong intercourse.
STUD 100® meets FDA requirements outlined in the Monograph on Male Genital Desensitizers and is FDA-compliant. It is also licensed as a medicinal product in multiple countries worldwide and regulated by the UK's Medicines & Healthcare products Regulatory Agency (MHRA).
Yes, STUD 100®® is registered in different countries around the world.
No, STUD 100® is available over the counter in many outlets, including pharmacies, adult stores and online.
STUD 100® has on the market since 1970, 55+ years!
Approximately 120 metered pump sprays. Each discreet-sized can is equipped with a non-aerosol metered pump-action spray.
Usage Instructions
Start with 3 sprays and adjust based on individual sensitivity. Do not exceed 10 sprays per application or 24 sprays in a 24-hour period. Always use the minimum effective amount.
How long the effects of the spray last varies between individuals. Quantity used and timing will vary with individual requirements.
This allows time for the product to be absorbed and prevents transference to your partner.
There are many different types of condoms currently on the market and studies on the use of STUD 100® with all types of condoms have not been conducted. The company is unable to comment on whether the efficacy of STUD 100® would be affected, or whether STUD 100® would affect the condom material.
No, STUD 100® should only be applied to the head and shaft of the penis and must always be used as directed.
It is not necessary to wash before sex. The product’s efficacy has been tested according to the instructions on the leaflet.
Be sure your partner doesn’t have a known allergy to lidocaine. While unlikely, it is possible that STUD 100® may transfer to partner’s mouth area and cause numbness of the lips and tongue, temporarily reducing awareness of heat and other sensations.
Safety & Precautions
When used as directed, STUD 100® is generally safe. Lidocaine is a well-established topical anesthetic that has been used clinically for decades. However, as with any medication, some individuals may experience side effects.
STUD 100® is only indicated for use in men. Possible transfer of STUD 100® to a female partner could occur during intercourse. However, this is likely to be a very small amount and the amount of absorption of lidocaine (the active ingredient) is likely to be very low. Nevertheless, as a precaution, STUD 100® is not recommended for use by men with a female partner who is pregnant.
Do not use STUD 100® if:
- You or your partner are allergic to Lidocaine or other local anesthetics
- You or your partner are allergic to any inactive ingredients
- Your partner is pregnant
- You have broken or inflamed skin on the penis
- You are trying to conceive
Possible side effects may include:
- Temporary numbness or tingling sensation
- Mild burning or stinging
- Skin irritation at application site
- Allergic reaction (rare)
If you experience severe discomfort, prolonged numbness, rash, or signs of allergic reaction, discontinue use immediately and consult a healthcare professional.
Rinse thoroughly with water. If irritation persists or if accidentally swallowed, contact a Poison Control Center or seek medical attention immediately.
Confidence in Every Spray
Pharmaceutical-grade formula. Discreet application. Reliable performance.