Facelift longevity depends less on the skin alone and more on the deeper support layer, often called the SMAS, as well as skin elasticity, bone structure, weight stability, smoking status, sun damage, and healing quality. If the deeper tissues are weak or very lax, the result may not hold as long as in someone with stronger tissue, but it does not necessarily mean everything will fall quickly. A well-planned facelift places support on the deeper tissues rather than pulling the skin tightly. In patients with weaker tissue, the surgeon may need stronger fixation, careful vector planning, limited skin tension, and sometimes additional procedures depending on the neck, cheeks, and jawline. Realistic expectations are important: surgery can improve laxity, but it cannot stop natural aging or completely overcome poor tissue quality. An in-person exam is needed to estimate durability for your anatomy.