The clinical literature positions Chlorhexidine Gluconate at several concentrations with different functions: 0.5% for mucosal antiseptics, 2% for intravenous catheter preparation, and 4% for pre-operative surgical scrub. EMGUARD chose 2.5% w/v as the balance point for a daily hand rub — strong enough to kill 99.9% of germs in 15–30 seconds, yet gentle enough for repeated use throughout a shift without drying or irritating the skin.
Unlike 70% alcohol-based hand rubs, which evaporate and lose their effect as soon as the skin is dry, the CHG 2.5% formulation delivers a residual antimicrobial effect — protection that keeps working for hours after application. This is the rational choice for healthcare workers who perform hand hygiene dozens of times per shift.
- 0.5% (Mucosal antiseptic)
- Too weak for transient flora on the hands.
- 2.5% (EMGUARD Hand Rub)
- Sweet spot — high efficacy, gentle on the skin for repeated use.
- 4% (Surgical Scrub)
- Designed for pre-surgical scrubbing, not a daily routine.