Nature''s Herbs®'' FreshCare System™ cares for both you and the planet. Capsule freshness is maximized without preservative through thoughtful formulation and environmentally sensitive packaging. The lightweight bottles are efficient to transport and use Post-Consumer Resins, which are fully recyclable, including the metal lids. Every bottle has a UV barrier to protect the capsules from exposure to light, while still allowing you to see exactly what is inside.