What is the difference between tranexamic acid and azelaic acid? 🤔 Both ingredients are able to deal with multiple types of uneven discoloration, including sun damage & spots after pimples. Both also have soothing properties, although those of azelaic acid are wider and those of tranexamic acid are more specific. Here's how they differ: Tranexamic Acid 💜 - Fades and prevents visible dark spots - Ideal for persistent, more diffuse discoloration - Derived from the amino acid lysine - Helps balance a fatty acid in the skin that can cause discoloration in excess Azelaic Acid 💚 - Visibly blurs spots and brown spots - Can tackle rough texture - Sourced from grains or can be made in the lab - Is an antioxidant