Risks and limits of Hautalterung Training

The question about risks and limits of 'skin aging training' cannot be directly answered from the provided context, as none of the documents specifically address skin aging or related training methods. In general, excessive or improper facial exercises (e.g., 'face yoga') may lead to muscle tension, wrinkle formation due to repeated skin folding, or even temporary swelling. Moreover, robust clinical studies proving a significant anti-aging effect are lacking. Genetic predispositions (e.g., collagen or elastin gene variants) are usually not considered in such tests, leaving individual risks unrecognized. Without dermatological or sports medical supervision, users may develop unrealistic expectations and neglect proven measures like sun protection or retinoids. The evidence for skin aging training is therefore rated as 'unclear' – it is more of a marketing term than an evidence-based intervention.