BEFORE YOU ORDER: USPS IS ExPERIENCING UNPRECEDENTED DELAYS in SOME REGIONS OF THE COUNTRY. WE SHIP VIA PRIORITY MAIL, BUT in PRESENT CIRCUMSTANCES CANNOT ASSURE DELIVERY BY ANY CERTAIN DATE. 3 Sisters Silver is a unique blend of ionic silver, “true colloidal silver” nanoparticles, & encapsulated silver particles. in our Elderberry Blend, the nanoparticles are synthesized with high-grade Elderberry extract. The triple blend formula makes our 3 Sisters 20 ppm suitable for any colloidal silver need. These products are not tested or approved by the FDA, & are not intended to prevent, treat or cure any disease. Use of this product is the sole responsibility of the buyer. 3Ss-Elderberry Blend 20 Ppm Colloidal Silver-128 Ounces