Premium Quality Since 1968 Standardized Vitex Agnus Castus Freshcare System Power Herbs Herbal Supplement Power Herbs, exclusively from Nature's Heritage, contain standardized extracts of naturally occurring active compounds while retaining and enhancing the whole-plant synergistic benefits to provide consistent quality and potency in every capsule every time. Our FreshCare System cares for both you and the planet. Capsule freshness is maximized without preservatives through thoughtful formulation and environmentally sensitive packaging. Our 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 capsule from exposure to light, while still allowing you to see exactly what is inside.Nature's Herbs