mature hair

When I decided to grow my hair longer, I discovered that my hair texture had changed--more brittle, drier, and duller.  I've been experimenting with hair products--started using B&B coconut shampoo and conditioner as well as Kiel shampoo and conditioner with olive oil.  Trying to make my hair shinier, but in the process it felt flat and somewhat scraggly.  I bought a straightening iron and have tried it a few times--seeing steam rising from my hair at 450 degree setting is not a good thing, I decided.  I don't think my hair was meant for the straight look--the ends looked frazzeled, and small frayed strands stuck out.  And I was using a Remington, which has gotten high marks.  So my latest effort included trying my third new hairdresser--she seems good; knew how to layer my hair without making it too short.  And she recommended Kinerase's line of products for "mature hair".  So I bought the whole line, and will see how that works. I had been looking for a while for "mature" hair products, but without success.  Tried Dove as well as L'Oreal products supposedly designed for older hair, but neither did anything.  I'm still trying to figure out what direction to go with the hair color.  I have had foil highlights for decades--since I was in my 30's--but more gray is appearing.  The new hairdresser suggested semipermanent hair coloring.  I plan to try that in about 6 weeks.  Coloring all my hair makes me nervous--I like the different shades.  She said I would still have varying shades.  We'll see.  For now I want to see if the pricey Kinerase hair products make my hair shinier and repair the split ends while still providing bounce and volune.  We'll see.