* Since 1947 * Phyto2X System * Standardized * Full Potency * (Valeriana officinalis) * Herbal Supplement * Suitable for Vegetarians * Kosher Parve Solgar"s Standardized, Full Potency (SFP) Herbs are developed through a unique process that integrates that ideologies of both traditional herbalism and standardized herbal technology. To ensure consistent and reliable phytonutrient levels, we isolate a controlled amount of these important active plant compounds. Then, we blend these enhanced "standardized" compounds with all of the components that occur naturally in the whole raw herb. The result is a potent, premium-quality standardized herbal extract with all of the synergistic and beneficial qualities found in nature. Phyto2X is a special blend of antioxidants, the purpose of which is to maintain the freshness of the ingredients.