It depends on what the lipid layer of the skin allows to pass through. As lipids are mostly nonpolar, polar substances like water or ammonia aren’t absorbed easily through the lipid layer. As for LSD, chemist manufacturers have been quoted to say that it can’t actually be absorbed by the skin: [https://www.reddit.com/r/LSD/comments/9ub4vs/how_easily_can_it_be_absorbed_thru_the_skin/](https://www.reddit.com/r/LSD/comments/9ub4vs/how_easily_can_it_be_absorbed_thru_the_skin/)
That is quite logical, as the LSD molecule is polar.
Latest Answers