Is Folsäure useful for Haut?

Folic acid (vitamin B9) is essential for cell division and renewal, making it theoretically important for skin health. A deficiency can lead to dry, scaly skin and impaired wound healing. However, oral supplementation in individuals with adequate levels does not provide additional skin benefits. Topical folic acid is marketed in cosmetics, but scientific evidence for anti-aging or acne effects is weak; studies show no significant improvement over placebo. For pregnant women, folic acid is crucial to prevent neural tube defects, but this is not skin-specific. Conclusion: Folic acid is necessary for normal skin function, but extra intake beyond the recommended daily allowance is not evidence-based for skin conditions. Consult a dermatologist before using supplements for skin issues.