specifically for wavy hair! I have thin, wavy hair, and it is always frizzy and dry. what is the best deep conditioning treatment made specifically for this hair type that has good reviews?

Bonus question: I have long hair. The only time I had short hair was 3rd to 4th grade (my hair was long again by 5th) and back then my hair was straight. my hair turned wavy in 6th grade. if I cut my hair to just below my shoulders (vs. low chest) will the loss of weight cause my hair to curl more?

I currently use sulfate free shampoo and tresemme naturals moisture conditioner...

also, how do you make the signature that says your hair types etc.?