Researchers at the Hebrew University of Jerusalem have developed a cellulose-based gel that dries on the skin and blocks mosquitoes from detecting human scents. Even those mosquitoes that get through are unable to lay eggs due to the effects of the gel.
https://nocamels.com/2024/09/gel-that-stops-mosquitoes-biting-and-reproducing-is-creating-a-buzz/
https://academic.oup.com/pnasnexus/article/2/4/pgad069/7103447