Lactomason
South Korean microbiome platform company specializing in probiotic R&D, large-scale cultivation, and health-functional probiotic products.
Last updated September 28, 2026
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Overview
Lactomason (락토메이슨) is a South Korean probiotics and microbiome company headquartered in the clean region of Jinju, Gyeongsangnam-do. Its name is a portmanteau of 'Lactobacillus', the archetypal probiotic genus, and 'mason', meaning a master craftsman in a particular field — reflecting the company's self-positioning as a group of probiotic specialists. Since its founding in 2007, Lactomason has built expertise across the probiotic value chain, from strain selection and research and development to cultivation, quality control, and product formulation. The company selects beneficial strains from fermented foods and healthy human sources, and has developed proprietary cultivation processes that allow standardized, large-scale production of high-quality probiotics for both health-functional foods and general food applications. Its portfolio is organized around three main technology and product families: PROKEEP, a patented probiotic manufacturing technology used to produce the 19 officially notified probiotic species registered with South Korea's Ministry of Food and Drug Safety (MFDS) as well as various functional strains developed by its researchers; PROMUNE, a line of heat-treated paraprobiotics (PROBIOTICS + IMMUNITY) designed to deliver superior immune activity compared with conventional live lactic acid bacteria and imported heat-treated strains; and MYLACTO, a consumer-facing probiotic health-functional food series made with PROKEEP and PROMUNE ingredients and marketed for its '5-free' formulation (free of sodium caseinate, colorants, magnesium stearate, synthetic flavorings, and HPMC). Research is a core part of the business. Lactomason operates the Seoul Microbiome Research Institute, opened in 2020, which focuses on microbiome R&D related to immune regulation and on characterizing the properties and mechanisms of the company's proprietary functional strains for areas such as obesity, liver function, immunity, and skin health. The company's stated mission and vision is to be a 'Leader of Microbiome for Next Generation.' Commercially, Lactomason positions itself as a probiotics raw-material supplier that understands strains deeply and also offers finished consumer products, with the claim that its MYLACTO series is made by 'a specialized probiotic raw-material company that best understands probiotic strains.' It states that it is expanding its business beyond South Korea into overseas markets through differentiated technology and a broad network. The company is headquartered in Jinju, South Korea, and is described in public data as a company in Jinju, South Korea.
History
Lactomason was founded in 2007 as a probiotics-focused company in South Korea. According to its corporate overview, the name combines 'Lactobacillus' — the representative probiotic genus — with 'mason', a term for a master craftsman in a specific field, signaling the founders' intent to build a group of dedicated probiotic specialists. From its base in the clean region of Jinju, Gyeongsangnam-do, the company selected diverse strains from fermented foods and healthy human sources and developed proprietary cultivation technology to lead large-scale production of high-quality probiotics. Over the years, Lactomason built capabilities across the full probiotic chain: research and development, cultivation and production, quality control, and product development and formulation. It describes its staff as specialists covering the 'A to Z' of probiotics, and credits differentiated technology and a broad network for its expansion from the domestic South Korean market into overseas business. A significant milestone came in 2020 with the opening of the Seoul Microbiome Research Institute. This institute focuses on microbiome R&D related to immune regulation, studying the characteristics and mechanisms of the company's proprietary functional strains for conditions and health areas including obesity, liver function, immunity, and skin health. The institute supports the company's stated mission and vision of becoming a 'Leader of Microbiome for Next Generation.' On the technology side, Lactomason developed PROKEEP, a patented probiotic manufacturing technology used to produce the 19 probiotic species officially notified by South Korea's Ministry of Food and Drug Safety, along with various functional strains developed by its researchers. It also developed PROMUNE, a heat-treated paraprobiotic (PROBIOTICS + IMMUNITY) technology positioned as overcoming the limitations of conventional live lactic acid bacteria by offering superior immune activity. These technologies feed into the consumer-facing MYLACTO series of probiotic health-functional foods, which the company markets for its '5-free' formulation excluding sodium caseinate, colorants, magnesium stearate, synthetic flavorings, and HPMC. Today Lactomason presents itself as a microbiome platform company headquartered in Jinju, with a research presence in Seoul, and states that it continues to expand its business internationally. Public data describes it simply as a company in Jinju, South Korea.
- 2020
Seoul Microbiome Research Institute opened, focusing on immune-regulation microbiome R&D.
- 2007
Lactomason founded in South Korea as a probiotics-focused company.
Products and positioning
A probiotics specialist group and microbiome platform company that supplies both raw probiotic materials and finished consumer products, emphasizing proprietary cultivation technology, functional strains, and immune-related research.
PROKEEP
Patented probiotic manufacturing technology used to produce the 19 MFDS-notified probiotic species and various functional strains.
PROMUNE
Heat-treated paraprobiotic (PROBIOTICS + IMMUNITY) line positioned as offering superior immune activity versus conventional live and imported heat-treated lactic acid bacteria.
MYLACTO series
Consumer probiotic health-functional foods made with PROKEEP and PROMUNE ingredients, marketed for a '5-free' formulation (no sodium caseinate, colorants, magnesium stearate, synthetic flavorings, or HPMC).
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