What is the shelf life of the Brazilian keratin hair treatment product?

The shelf life of Brazilian keratin hair treatment products typically ranges from 1 to 3 years when stored properly, away from direct sunlight and extreme temperatures. It's essential to check for any specific expiration dates or guidelines provided by the manufacturer on the packaging. Once opened, the effectiveness may decrease over time, especially if not stored correctly. Always inspect for any changes in consistency or odor before use.