I have no idea how it works considering ingredients but it works for me.
This stuff is truly remarkable for troubled skin.  Go easy on face in super cold weather if you choose not to wear a moisturizer as it may be drying for troubled or mature skin. I use it as a toner after cleansing.  I let it dry completely before I put anything else on skin. I attach spray attachment to keep from contaminating the bottle.  I have had a cloud of constant compliments on my skin after a month or two of using this product. Great for discolored spots and remnants of blemishes as well as other skin issues.  Helped friends age spots tremendously.
Rating: 5 stars