When it comes to preventing the spread of coronavirus, "if soap and water are not readily available, use a hand sanitizer that contains at least 60% alcohol cover all surface of your hands and back and rub them together until they feel dry.
And indeed, the primary ingredient in hand sanitizer: alcohol. Most hand sanitizers contain anywhere from 60% to 95% isopropyl or ethyl alcohol mixed with water and gels like glycol and glycerin in order to prevent drying out users' skin. The resulting product is typically sold in a hand gel or liquid spray.
Follow this steps for effective use;
1. Apply hand sanitizer to palms
2. Rub hands together, covering all areas including backs of hands.
3. Rub until hands are dry, paper towels are not needed.