Probiotics combine with the slight acidity and dry nature of skin to maintain its role as a pathogen barrier, yet antibiotic soaps will actually annihilate bacteria indiscriminately, wiping out good and bad. Natural soaps on the other hand aren't indiscriminate and target the "enemy." Immune system cells which work on what gets under skin(1) seem to be better known though not necessarily all known by name!
Lactobacillus bacteria strains compose a good bulk of certain strains of bacteria known for probiotic activity - certain probiotic bacterial strains are required for yogurt to be called yogurt [note: GMOs and sugar are rampant in yogurt!]. Yet, a particular strain with the lengthy name Lactobacillus delbrueckii subspecies. bulgaricus G-LB-44 was specifically tested on organic juice products and found to decimate more than 99% of pathogens in it. Different probiotic strains are also specifically pathogen fighters(2).
Sources:
1. "Immune System." TruthWiki: Get the Real Story. TruthWiki. About 5 years ago. Web 28 August 2019. http://www.truthwiki.org/immune_system/
2. Onderdonk, Andrew B. "Research Summary for Lactobacillus bulgaricus G-LB-44." GLB44.org, http://glb44.org/.