Hello, Thank you for your thoughtful question. For individuals with low body fat and noticeable tear troughs, there are indeed alternatives to traditional dermal fillers that can help restore volume while maintaining a natural appearance. If your goal is to avoid fillers and seek something more fat-like in texture, here are several options to consider: Fat Grafting (Autologous Fat Transfer): This involves harvesting fat from another area of your body and carefully injecting it into the tear trough area. It provides a soft, natural-looking correction and can be a great option for someone seeking longer-lasting results compared to fillers. It’s especially ideal for patients with low facial fat, though you must have adequate fat stores in other areas for harvesting. Nanofat or Microfat Injections: A refined version of fat grafting, nanofat involves emulsifying fat to create a very fine consistency, which can be used for delicate areas like the tear troughs. This not only adds volume but may also improve skin texture and quality due to the regenerative potential of stem cells within the fat. Tear Trough Implants: While less commonly used, implants can add structure and support to the under-eye area. However, as you mentioned, they can sometimes result in a more rigid or "bony" appearance, which might not be ideal if your goal is to mimic lost soft tissue volume. PRP (Platelet-Rich Plasma): Although not a volumizing treatment, PRP can help improve skin quality and promote collagen production, which may slightly improve the appearance of the tear trough area when used alone or in combination with other treatments. Skin Tightening Treatments (e.g., radiofrequency, microneedling with RF): These can improve skin laxity and texture, making the tear troughs less noticeable—especially when sagging or thinning skin is contributing to the hollow appearance. Ultimately, the most suitable option depends on your facial anatomy, aesthetic goals, and whether you prefer a more conservative or surgical approach.