- tags equate to higher quality. In the case of Vitamin C, that is often not the case. You can find excellent, high-quality serums at the local grocery store or pharmacy for less than the price of a takeout meal. When you are shopping, look for three specific things. First, look for a concentration of 10% to 20% Vitamin C, specifically in the form of L-ascorbic acid, which is the most research-backed form available. Second, check the
packaging. Vitamin C 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