Coza is a customized sleep solution brand that offers premium sleep aid products based on natural ingredients and scientific research. More than just a sleep inducer, Coza aims to help users develop healthy sleep habits without concerns about dependence or side effects. Having surpassed cumulative sales of approximately USD 2.9 million, it is becoming Korea’s No.1 sleep food brand that comes to mind on sleepless nights.
Coza Original Drink is a fermented beverage enhanced with a proprietary lactic acid bacteria fermentation technology developed by Seoul National University researchers to maximize the efficacy of sleep-promoting ingredients. In a study conducted with Bundang Seoul National University Hospital, it demonstrated 2.6 times faster sleep onset compared to 3 mg of melatonin, as well as significant improvement in sleep quality. Made from natural ingredients, it is safe for anyone to consume.
Launched in 2025, Coza Jelly contains 5 mg of plant-based melatonin per two gummies, offering a targeted solution for those with reduced melatonin secretion, insomnia symptoms, or the need for faster sleep onset. Its gummy format provides excellent portability and convenience, making it suitable for night-shift workers or those needing to adapt to time zone changes, while delivering functions distinct from the Original Drink.
Since 2023, Coza has completed FDA Dietary Supplement registration in the United States, entered Amazon, and participated in CES 2024, marking the start of its full-scale entry into the North American market. Moving forward, Coza will target the United States, China, and Japan as key strategic markets, refining product formulations, acquiring certifications, and implementing localized marketing to strengthen its position as a global leader in sleep solutions.