I am trying to formulate a hand gel with 70% w/w ethanol.
I am a cosmetic chemist working in a company that does have lots of restriction on ingredients.
I tried ultrez 20 , but the problem is that NaOH precipitated with this high alcohol content.
Unfortunately i can't use TEA or any of its derivatives.
P.S. I tried xanthan gum but didn't work as i believe it can't hold such high alcohol, same with hydroxyethyl cellulose
I don't want to use Sepimax zen as it is currently out of stock and i can't afford waiting..
Any suggestions please would be great.
Comments
We have already done the spray according to WHO guidelines. But now, i am requested to formulate the gel with the above mentioned criteria
According to this document, the formulas were deemed appropriate when tested to EN standards (EN 1500). Unfortunately I can't seem to read EN 1500 without purchasing, so even if someone here did have access we shouldn't be making our findings publicly accessible. It might not confirm that spray application is less effective, but we can state that the form of application used in EN 1500 is effective and is the method endorsed by the WHO.
Now, look at what I have found regarding this problem.
"This policy does not apply to hand sanitizer gel or foam products because different or additional ingredients may impact the quality and potency of the product. This policy does not apply to aerosol sprays because aerosol sprays with propellent added to the formulation can result in altered potency of the finished hand sanitizer. Aerosol sprays with propellent outside of the formulation (bag on valve) may have safety and potency concerns due to the increased flammability risks of ethanol in an aerosol, risk of overspraying, variability of delivery of the product, rapid evaporation of alcohol, and inhalational toxicities." source:FDA document Policy for Temporary Compounding of Certain Alcohol-Based Hand Sanitizer Products During the Public Health Emergency Immediately in Effect Guidance for Industry