It is best to start with the materials for nasal tip plastic surgery, such as ear cartilage, costal cartilage, or your own dermis, usually at the waist or buttocks. Take a piece of skin, cut off the surface, remove the epidermis and the fat below, leaving white dermis for nasal tip filling. You can refer to this post on medela APP: /m/articlegroup/ 1204023, which contains answers to questions related to nose medical beauty.