My mother bought this product for her extremely frizzy hair - I decided to use some on certain parts of my hair as I started to notice breakage in random spots.
After washing your hair, dry it till it's slightly damp, then you apply 1/2 drops to your fingertips, rub together, and then you rub it into the ends of the hair (Or your specific targeted spot*) This product smoothes the hair cuticles and binds in moisture, leaving the hair smooth and less frizzy.
I could definitely see a visible difference in the ends of my hair, and on the breakage - The hair seemed, softer and smoother in those areas.
It should stretch pretty far as you only need a pump or two for application, and the consistency is slightly oily*
I would recommend this for people who are experiencing damage or breakage :)