This product contains Hydrochloric Acid and an enzyme called Pepsin, both of which are naturally produced in the stomach to aid in digestion. This supplement is helpful for those who suffer from acid reflux, excessive gas and bloating.  It can also help with hairloss due to low hydrochloric acid levels.
 
Pepsin, a protein digesting enzyme derived from porcine, is known to have an off odor when exposed to heat and moisture. This is not an indication of spoilage.