Thank you for your question and for sharing your photo. At 20 years old, the hollowing you see under your eyes is almost always related to the natural anatomy of the tear trough rather than to excess skin or fat, so I would not recommend surgery such as a blepharoplasty or an eyebrow lift at your age — your skin and supporting tissues are still firm and elastic, and those operations are designed for laxity and fat herniation that typically develop much later in life. I also want to be honest with you about hyaluronic acid under-eye filler, because it is often suggested for exactly this concern but carries real risks in this specific area. The skin under the eye is extremely thin, and hyaluronic acid is a water-loving material: it can draw and hold fluid, which paradoxically makes the area look more swollen and puffy rather than smoother. It can also interfere with the delicate lymphatic drainage around the eye and create a persistent, chronically edematous appearance that is difficult to reverse, and because the skin is so thin the filler can show through with a bluish discoloration (the Tyndall effect). For these reasons I am very cautious about traditional tear-trough filler in a young patient like you. At this stage, what I would actually recommend are gentler, regenerative treatments that improve the quality of the skin itself rather than simply adding volume. Polynucleotide ("salmon DNA") mesotherapy is an excellent option for the under-eye area: it hydrates the skin, improves elasticity and thickness, and softens dark shadowing over a short series of sessions, with a very favorable safety profile. A biofiller — a filler prepared from your own blood — is another option I like here, because it adds a small amount of natural, well-tolerated volume and stimulates your own tissue without the water-retention and Tyndall concerns of synthetic fillers. That said, the most important first step is to confirm what is truly causing the appearance, because at your age it is frequently not a volume problem at all — shadowing can come from pigmentation, the natural bony contour, allergies, fluid retention, or sleep. The best next step is an in-person consultation so the area can be assessed directly and we can build a safe, conservative plan, very likely starting with polynucleotide mesotherapy and/or biofiller rather than a synthetic filler.