Aluminum-free. 100% natural. 24 hour odor protection. Long lasting. Clinically tested 24 hour odor protection. No aluminum, no parabens, no PG. Dermatologist tested. Does not contain artificial or animal ingredients. How Does Tom's Work?: Hops inhibits growth of odor-causing bacteria; zinc ricinoleate absorbs odor; lasting natural fragrance. Cruelty free. Made in USA.