/PRZWT/During the night of menstruation, people often worry that not changing sanitary napkins for a long time will lead to bacterial growth. As a result, they tend to force themselves to change them at night, dare not sleep in and always want to get up early to change them, and feel uneasy all night and have difficulty falling asleep, which affects the quality of sleep. For this reason, Kao's brand "Laurier" launched a new product in its goodnight pants series, "Laurier Goodnight Pants Antibacterial and Refreshing", in September 2025. With an antibacterial rate of 99%*1, it helps women avoid the trouble of bacterial growth in their private parts during the night of menstruation and enjoy a "peaceful and comfortable sleep" throughout the night.
With the changes of The Times and lifestyles, women have put forward higher requirements for menstrual health. Through the empowerment of big data and in-depth user interviews, "Leerya" has discovered that "bacterial growth in the private parts" has become another major menstrual concern for women following "side leakage". For this reason, Kao's R&D center, leveraging its profound accumulation in the fields of microbial inhibition and skin care, has introduced antibacterial technology into its products. After launching the "Zero-touch Antibacterial Sanitary Napkin" last year, "Leya" has continuously expanded its product boundaries, moving towards the advanced stage of "comprehensive health protection" - protecting women to embrace work and life calmly during the day, without fear of bacteria and menstrual blood odor. Resting at night allows for a more peaceful and comfortable sleep.
The new product "Leerya Night Pants Antibacterial and Refreshing" is specially designed for the night during menstruation, integrating four layers of reassuring "protective power" : antibacterial, leak-proof, breathable and strong absorption. The fully wrapped underwear cut has a 99% antibacterial rate *1, helping to inhibit bacterial growth. It features 480mm extra-long *2 ribs, combined with a widened fan-shaped rear wing *3, providing multi-directional leakage prevention and reducing side leakage *3 and rear leakage *2. 0.21cm*4 thin air core, light and thin *5 transparent; It can absorb 28 times its own weight *6 more effectively, keep away from dampness and stuffiness, and provide a refreshing skin feel. Provide reassuring protection for menstrual nights.
The outer packaging design of "Leerya Goodnight Pants Antibacterial and Refreshing" uniformly adopts the fresh and comfortable green and the soothing and sleep-inducing deep blue, creating a light, carefree and worry-free pleasant atmosphere. The sizes include M, L and XL, catering to the needs of people with different body types. No matter how many nights there are, sweet dreams are not afraid of being interrupted. Whether it's a long journey, the "antibacterial halo" will always be by your side to protect you.
"Leerya" has always been concerned about the real needs of women and is dedicated to developing higher-quality physiological hygiene products. Adhering to the original intention of "enabling every woman to live freely during her menstrual period", we continuously promote innovations in materials, structures and functions to help empower women during their periods to be unrestrained and enjoy freedom.
This product has been tested by a third-party inspection agency and its antibacterial rate against Staphylococcus aureus is up to 99%.
2. Compared with the 400mm ordinary night sanitary napkins of our company
3. Compared with our company's "Leerya Goodnight Pants Women's Sanitary Pants"
4. 0.21cm refers to the thickness of the absorption core
5. Compared with the "Le 'er Ya 'an Pajama Women's Sanitary Pants" of Kao Corporation of Japan
6. It refers to a liquid that can absorb an amount equivalent to 28 times the weight of a human body
All the above data are from Kao's R&D center
