How are IgG Unverträglichkeitstest and Haut related?

IgG food intolerance tests are often marketed for skin issues like acne, eczema, or rosacea. However, the scientific evidence linking IgG antibodies to skin conditions is weak. IgG against foods typically reflects immune exposure, not allergy or intolerance. Clinical studies have not shown reliable benefit from such tests for skin health. Dermatology relies on validated allergy testing (skin prick, specific IgE) and physician-supervised elimination diets. IgG tests are not recommended by dermatological societies. For skin problems, consult a dermatologist rather than unvalidated self-tests. Evidence: marketing, as claims are mostly based on exaggerated commercial promises.