Yes the Irish Spring bar soap is antibacterial.
I use Irish Spring bar soap which is antibacterial for washing my hands daily and also for taking a shower with.
The Irish Spring bar soap is a cheap soap but also a very good soap that gets you clean and also kills bacteria.
When soap is antibacterial it will usually say so on the package.
But most soaps you buy today are antibacterial and so they will kill bacteria.
Bar soap is okay for washing your hands as well but some people do prefer to use liquid soap which is considered to be healthier but even then you have to touch the pump of the liquid soap which can transfer germs.
So that is why I mostly prefer to use bar soap.
Irish Spring bar soap is a good soap at a good price and kills bacteria.