LactoCare-EX is a Thai-developed postbiotic produced through precision fermentation of Lactobacillus pentosus TBRC20328 and refined downstream processing. It exhibits antioxidant, anti-inflammatory, and anti-pathogen activities, contains natural lactic acid (pH 5.5–5.8), and is free from irritation and contaminants. Used in oral and intimate care products, it upcycles fermentation byproducts, reduces waste-treatment costs, and enhances the competitiveness of Thailand’s bioindustry.