Romansive is a South Korean foodtech company that develops science-based sleep solutions under its flagship brand Cozaa, selling sleep-support drinks, jellies and ampoules built on proprietary technology and patents rather than simple ingredient blending. Founded in 2021 by CEO Soo-hyun Lee, the company developed lactic-acid-fermented Ziziphus jujuba seed extract with Seoul National University researchers, completed preclinical and clinical studies with Seoul National University Bundang Hospital, and holds a top-tier T4 technology-credit rating with five patents including a US patent. Backed by conglomerates Dongwon and Lotte, it is now developing personalized sleep products and expanding overseas, including entry into Japanese distribution channels together with Lotte Ventures.
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Oct 2, 2026
Latest raise
Funding activity · 1 round
Oct 2, 2026
KRW 4B
Series A
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