Collagen decline is a gradual process, which means the right approach shifts somewhat across different life stages. This is a helpful general guide, though your practitioner will always assess your actual skin condition rather than your age alone.
Late 20s to early 30s. Collagen production is generally still strong at this stage. A single session, used preventatively or annually, is often enough to support skin quality before visible laxity develops.
Mid 30s to 40s. This is when early to moderate laxity typically becomes more noticeable, particularly along the jawline and in the lower face. A short series of 2 to 3 sessions is common at this stage, often followed by an annual maintenance session.
50s and beyond. More pronounced laxity is common by this stage, and a series of 3 sessions is often recommended to achieve a meaningful result. Results remain gradual rather than dramatic, in keeping with how XERF works biologically, but noticeable improvement in firmness and definition is still achievable.
To understand more about what XERF can realistically achieve and who it suits best, read our guide on whether you are a good candidate for XERF.