Tinctures do. A tincture uses alcohol to dissolve and extract the herbal constituents, which is what makes the product work. Sometimes a tincture is “double extracted”, which just means that it uses water and alcohol, as different phytochemical (plant chemical) compounds dissolve in different solutions. If you are looking for an effective echinacea product, but without the alcohol, there are various alcohol-free products available. These are more appropriate for children and those who want a liquid but don’t want any alcohol.