There’s a $10 ingredient that fades dark spots — but it stops working completely if you skip one specific step

  1. 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.

  1. Establishing a Daily Application Routine
    Once you have your product, it