500mg Glutathione Suppositories are sold as a one-month supply. You can only raise glutathione at the cellular level by IV injection, inhalation of nebulized liquid Glutathione, or by using these suppositories. Oral Glutathione is a waste of time since it digests in your stomach before it can ever reach the blood stream. These are the highest quality, highest potency glutathione suppositories available. You will not find a similar product online as no other company incorperates so much technology with their Glutathione suppositories to enhance the affect and absorption. Advanced Biome Corp™ suppositories are a full 250mg each and are shipped cold to maintain full potency!!