Product Quality & Expiration Date

All ingredients used in KOSÉ Corporation cosmetic products are strictly controlled to ensure the safety of our consumers. Our products are evaluated by conducting long-term and accelerated stability tests, which simulate various environmental conditions, to ensure that our products maintain its expected potency and quality during use and storage. KOSÉ Corporation products are certified to withstand 5 years shelf life upon the manufacturing date.
Once the product has been opened, we recommend the usage period within 12 months, unless indicated differently on the open jar symbol which you may locate it on some of the product packaging. For more information please feel free to contact our KOSÉ Beauty Concierge.