The Caffeine 5% + EGCG Serum for treating dark circles from The Ordinary is a miracle for tired eyes. This lightweight formula contains a high concentration of caffeine at 5%, along with high-purity Epigallocatechin Gallate (EGCG) extracted from green tea leaves. Studies have shown that the topical use of both caffeine and EGCG can help reduce the appearance of puffiness and dark circles. It is rich in antioxidants and anti-inflammatory properties that enhance the refreshment and illumination of the sensitive skin around the eyes. The serum comes in a UV-resistant bottle because EGCG is sensitive to light, and it is characterized by its lightweight and quick-absorbing nature. Additionally, it is alcohol-free, oil-free, silicone-free, vegan, and has not been tested on animals.