Quick answer
Separate AREDS and AREDS2 formulas by beta-carotene, lutein, zeaxanthin, zinc, copper, smoking-history cautions, and eye-care context.
Label check
- Active ingredient and exact amount
- Inactive ingredients, capsule material, flavors, and colors
- Allergen statement and shared-facility language
- Sweeteners, sugar alcohols, gelatin, dairy, soy, gluten, or fish source