GNC Herbal Plus Natra Sleep, 100 Capsules, Supports Restful Sleep

Supports Restful Sleep* - Whole herbs are usually dried, chopped or ground into powder, and may be processed with water or alcohol for encapsulation. Standardized herbal extracts are made by dissolving herbs in a solvent like water, alcohol or liquid carbon dioxide, resulting in a chemical extract. The goal of standardization is to provide uniformity of a specific constituent that may be biologically active.