What to watch with MTHFR and Haut?

MTHFR variants (e.g., C677T) are common and affect folate metabolism, which could theoretically impact skin health via methylation and homocysteine levels. Some studies suggest links to eczema, psoriasis, or photosensitivity, but the evidence is weak and inconsistent. Most carriers never develop skin issues. A DNA test alone is not diagnostic or actionable for skin conditions. A more evidence-based approach includes diet (folate, B vitamins), sun protection, skincare, and possibly homocysteine testing. Beware of overblown marketing claims. For skin concerns, consult a dermatologist rather than relying solely on genetics.