Questions people ask about Haarausfall Check

A hair loss check (e.g., as a DNA test or biomarker panel) claims to identify genetic and physiological causes of hair loss. However, the scientific basis is limited: only a few genetic markers, such as the androgen receptor gene (AR, CAG repeat) or variants in *AR*, *SRD5A2*, and *EDA2R*, are associated with androgenetic alopecia – mostly with small effect sizes and population-dependent. A direct predictive value for individual hair loss is not established. Biomarkers like ferritin, vitamin D, zinc, or thyroid function can be relevant in diffuse hair loss, but a 'check' alone does not replace a medical workup. Many commercial tests combine genetic data with nutrient profiles without clinical trials proving the efficacy of this combination. The evidence is therefore 'mixed': mechanistic links exist, but the predictive and therapeutic benefit for the individual remains unclear. A responsible approach would be to first consult a physician (dermatologist, endocrinologist) who can order targeted blood tests and possibly a scalp biopsy. A home test can at best serve as supplementary orientation, not as a diagnosis.