Defense Soap
Product
Preventing skin infections (ringworm, staph) in jiu-jitsu and grappling while preserving healthy skin microbiome
"There's a company called Defense Soap and they developed a soap specifically for grapplers. This soap has tea tree oil and eucalyptus and it's very healthy for the skin. So it promotes healthy gut flora but it does kill all the cooties."
More source quotes
"It's called Defense Soap. Defense soap is my friend Guy Sako he invented it. That's the only soap that I use"