Happy Moonday provides holistic services and products around women's health to help more women live healthier lives.

The company regards the menstrual cycle as one of the essential vital signs of women's health and a good starting point for healthcare. In addition to providing high-quality female healthcare products, they maintain a mobile app, Heymoon, that manages menstrual health, offers various health products—from sanitary pads, tampons, and menstrual cups to health supplements and light therapy lamps—and provides informative content.

Heymoon has surpassed 1.9M downloads, with almost 30% of women in South Korea between 15–24 yrs old signing up. The company has raised $12M in fundraising and wants to expand internationally in 2023.