ELI5 Soaps - hand soaps vs body wash - are they different?

ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast

Is there a significant difference between hand soap and body soap? Why does using bar soap often leave a "squeaky clean" feeling compared to liquid soap? How about antibacterial soap that has become popular in recent years? Is it more effective than regular soap? Is it alcohol in them that kills the bacteria?

... we explain like I'm five

Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: dankutobi, andiell, parallax3, germtheory, typhoneus, wafflebauf, formyfrog, catwhowalksbyhimself, amaranth1977 and lumpywon

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