I suffered from elbow aches for months and decided to try SierraSil after hearing Erin Davis endorse it on CHFI. My elbow discomfort cleared up within days of taking SierraSil. I have been taking it for months and recently ran out while on vacation in the USA. Within 2 days the discomfort in my elbow returned leaving me desperate to return home to my local IDA. I can’t speak highly enough about SierraSil. It is a quality of life changer.