Safety Warning for Cos De Baha Serum :

After using this product continuously for 60 days you'll need to give your skin a break and stop using the serum for 30 days. Users of hydroquinone can develop resistance if used continuously without a break and also risk developing a condition called Ochronosis which is a permanent darkening of the skin. While this is a rare condition, it's still important that you pause using any hydroquinone product after 60 days. You can begin re-using the serum after a 30 daybreak. During the 30 day break, we recommend using Cos De BAHA Vitamin C Serum + AHA/BHA Toner to maintain your new glow. You can repeat this cycle to keep your skin looking bright and youthful.