Can BDNF help with skin aging?

BDNF (Brain-Derived Neurotrophic Factor) is primarily known for its role in neuroplasticity. Some research suggests it may influence skin aging through effects on keratinocytes, collagen synthesis, and oxidative stress. However, the evidence is mostly mechanistic or from early human studies; large-scale clinical trials are lacking. MyBody-X DNA tests may include BDNF-related SNPs, but effect sizes are small and not clinically actionable. Skin aging is multifactorial—UV exposure, lifestyle, diet, and polygenic background dominate. A single BDNF variant cannot predict skin aging. Supplementation with BDNF-boosting compounds (e.g., certain nootropics) is not proven to reverse skin aging. Evidence level: mechanistic/unclear. Safety: no direct risks, but avoid unsubstantiated claims. For anti-aging, focus on proven strategies: sunscreen, retinoids, antioxidants, and healthy habits.