Which thing is best for antiaging?

The single best thing for antiaging is consistent daily use of broad-spectrum sunscreen with SPF 30 or higher. Sun protection prevents up to 80% of visible aging signs caused by UV damage, including wrinkles, age spots, sagging, and texture changes. Apply sunscreen every morning to face, neck, and hands, and reapply every two hours when outdoors. This simple habit is more effective than any cream or treatment at preventing premature aging. For comprehensive antiaging, combine sunscreen with retinoids for wrinkle reduction, antioxidants for protection, good moisturization, healthy diet, regular exercise, adequate sleep, stress management, and avoiding smoking and excessive alcohol.