Lactobacillus Plantarum is a super common probiotic that produces 10-HSA and other important metabolites

its commercial name is also known as lp299v which has been studied for decades, tons of studies

for example: https://www.mdpi.com/2073-4344/10/2/154

lp299v is extreme safe and can be taken in mega-doses however it will not colonize in the GI so would have to be taken routinely