Hand Spray Formulation Efficacy

Regarding your hand spray formulation with 1% MicroKill™:

MicroKill™ Efficacy

MicroKill™ (Quaternium-73) at a concentration of 1% in a formula (equivalent to 0.001% Quaternium-73) has been shown to kill over 99% of certain germs, including P.Acnes bacteria, which are associated with acne. This indicates it has disinfectant properties against specific microorganisms.

Comparison to Alcohol-Based Sprays

Alcohol-based hand sprays (typically containing 60-95% ethanol or isopropyl alcohol) work differently than Quaternium-73. Alcohol is a broad-spectrum antimicrobial that effectively kills a wide range of bacteria, viruses (including enveloped viruses like coronaviruses), and fungi by denaturing proteins and disrupting cell membranes.

While 1% MicroKill™ is effective against certain bacteria as mentioned, its efficacy against the broad spectrum of pathogens targeted by alcohol-based hand sanitizers (especially viruses) is not detailed in the product information. Therefore, it cannot be definitively stated that the efficacy of your formulation with 1% MicroKill™ is comparable to that of typical alcohol-based hand sprays for general hand sanitization purposes. Alcohol-based sanitizers are widely recommended for their proven broad-spectrum germ-killing capabilities.

Your Formulation

Your formulation also includes MOIST24 for moisturizing, fragrance for scent, and Flora Solve™ Clear as a solubilizer to help the fragrance disperse in the water base without needing alcohol. The use of Flora Solve™ Clear at a 1:1 ratio with fragrance is noted, although the product description generally suggests a higher ratio of solubilizer to fragrance (2-5 parts solubilizer to 1 part fragrance) for optimal clarity and stability.

In summary, while 1% MicroKill™ provides disinfectant action against certain bacteria, its performance for general hand sanitization against a broad range of pathogens, including viruses, is not equivalent to that of alcohol-based hand sanitizers.