is extremely sensitive, and it degrades quickly when exposed to light and air. Always choose a product that comes in a dark, opaque bottle. Third, use your eyes. If you open your serum and it has turned a deep orange or brown, it has oxidized and is no longer effective. It should be clear or a very light yellow tone.
- Establishing a Daily Application Routine
Once you have your product, it is time to build a habit. Before you begin applying it to your whole face, always perform a patch
