Condoms and STI Protection — The Science

Overall Effectiveness

With correct and consistent use, latex condoms reduce the risk of:

• HIV transmission: by 80–95%
• Chlamydia: by approximately 70–80%
• Gonorrhea: by approximately 60–70%
• Syphilis: by approximately 50–70% (depends on lesion location)
• HPV: partial protection (skin-to-skin contact areas not covered)
• Herpes (HSV-2): approximately 30–50% reduction

Source: WHO, CDC, Cochrane Reviews

Why Isn't It 100%?

Condoms are not 100% effective against all STIs because:

1. Skin-to-skin transmission: Some infections (HPV, herpes) can transmit via areas not covered by the condom
2. User error: Incorrect application, not using for the entire encounter, or breakage
3. Lubricant incompatibility: Oil-based lubricants causing microtears

Why Certification Matters for Protection

A condom that breaks or leaks provides no protection. This is why ULEX® Premium Condoms are certified to the highest standards:

• CE 0197 (EU Medical Device regulation)
• TÜV Rheinland (independent verification)
• ISO 13485 (quality management)
• 100% electronic pinhole testing
• Air burst testing per ISO 4074

A poorly manufactured condom — however thin or well-lubricated — is not a safe condom.

HIV Specifically

HIV transmission requires the virus to enter the bloodstream via mucous membranes or blood. Latex condoms are impermeable to HIV — the virus cannot pass through intact latex. Studies show consistent condom use reduces male-to-female HIV transmission risk by over 90%.

ULEX® and Intimate Wellness

ULEX® Premium Condoms are designed for couples who take their intimate wellness seriously. Triple certification ensures that the ultra-thin experience (0.06mm) does not compromise the protective function.

ULEX® Premium Condoms — protecting Europe's intimate wellness since launch. Available at ulex.co.