One of life's greatest pleasures in the trove of samples you can try on in Sephora.

But I have wondered about safety re infection? Is the alcohol they provide really enough to disinfect a lipstick bullet? (There is no way to know if the isopropanol provided is in the 75-91% range, or if it's rubbing alcohol.)
Lip gloss tubes and mascaras seem particularly suspect, even though they provide applicators for both.
Thoughts? Better to buy the product and return if dissatisfied?
Comments
I like to test things and bring samples home before purchasing. I do appreciate Sephora's generous return policy, but I do hate using something once or twice, then returning. So much waste. I try to mitigate doing that as much as I can.
You're right, Sonja, that would be fascinating to do some sample testing,