The most common questions about the supplements are regarding their use, flavor, consistency, storage requirements, and expiration. The skin supplements vary in type, consistency, and use (which is labeled with each bottle). Only mild and natural scents are apparent in the skin supplements. The oral supplements are all a sweet (organically and naturally flavored) liquid and are recommended to be used by holding in the mouth, under the tongue, and swishing from 30-90 seconds, in order to fully and sublingually absorb all of the nano-sized nutrients. The consistency of most of the supplements is that of a very fine oil-based liquid. It is recommended that you store the supplements at room temperature in a cabinet, closet, or somewhere outside of direct sunlight. All supplements should be shaken before use, and all supplements have a true two (2) to three (3) year shelf life (depending on the supplement). If you have further questions about the supplements or any other items, please feel free to email us at info@syrona.org. Thank you!