There always have a balance between Natural and Durable. Different bases have different durability. If you want long-lasting hair systems, you may have to sacrifice the realistic nature of the system. Which means the more natural the hair replacement system looks, the less durable it will be. The following is the lifespan of basic materials of common hair systems for your reference:  

  0.02mm-0.04mm ultra-thin skin hair systems can be used for 1 to 2 months       0.04mm-0.06mm thin skin hair systems can be used for 2 to 3 months          0.06mm-0.08mm poly skin hair systems can be used for 4 to 6 months  0.10-     0.14mm thick skin hair systems can be used for about 6 months  Swiss lace hair systems can be used for about 2 months  French lace hair systems can be used for about 3 months  Mono hair systems can be used for more than 6 months