What to watch with Nährstoffcheck and skin aging?

A nutrient check (e.g., blood or DNA-based) can identify deficiencies in vitamins, minerals, or trace elements that theoretically influence skin aging – such as vitamin C for collagen synthesis, zinc for wound healing, or selenium for antioxidant protection. However, the evidence for a direct anti-aging effect from supplementation is weak to moderate: studies often show only small effects, and skin aging is primarily driven by UV exposure, lifestyle (smoking, sleep), and genetics. The skin genetics domain (MMP1, GLO1, AQP3, MC1R, COL1A1) offers biologically plausible mechanisms – e.g., MMP1 affects collagen breakdown, GLO1 influences glycation – but the associations are not strong enough for personalized nutrition recommendations. Many commercial tests overstate clinical relevance. Watch out: a nutrient check is a snapshot, not an anti-aging prescription. If deficiencies exist, targeted supplementation is sensible, but without a deficit, extra supplements provide little benefit. Safety note: High doses of fat-soluble vitamins (A, E) can be toxic. Consult a dermatologist for skin concerns.