How to Tell If Your Hand Sanitizer Is Safe and Actually Works- liquid hand sanitizer spare type ,Guidelines say hand sanitizer should be at least 94.9 percent alcohol by volume and contain ingredients for smell and taste that discourage people from ingesting the product.Hand Sanitizer: Which is the better alternative? Liquid Or ...These types include liquid, gel, and foam. Liquid hand sanitizer vs gel hand sanitizer is commonly debated, but each has its own use cases. Let's look at both types of hand sanitizer and try to understand the pros and cons of each under various circumstances. Liquid Hand Sanitizer. Liquid hand sanitizer is of a watery consistency.