I’ve been in the nutraceutical industry for 40 years! Occasionally you come across a product that really makes a difference in people’s lives. SierraSil is one of them. SierraSil allows me to continue my active lifestyle without the joint and back aches I suffered through before learning about SierraSil. I no longer require Ibuprofen to get through a round of golf or tennis matches. Thank you so much!