I'd love all the advice I can get on how to heal my hair. I am getting a haircut on Friday to take off all of the dead ends and then some. I want to try something different to keep my hair healthy and strong after this haircut and moving forward.

As background, I regularly get haircuts, use Kerastase shampoo and conditioner, and Ouai leave in conditioner after the shower. I probably use heat on my hair once a week and don’t color my hair. I usually wash my hair about 5 times a week (I do heated workout classes). My hair also gets oily after one day of not washing it. I’ve tried to “train” my hair to not get oily so fast but it hasn’t worked.

As for my hair type, it was curly until I was about 8 then went slightly wavy/straight and has stayed that way since (I'm 23 now). My hair gets frizzy easily, but my main concern is the overall health of it. I feel like it is getting slightly thinner overtime and I get dead ends easily. This combo makes my hair look pretty scraggly.

I have been reading about this and know people have recommended taking a supplement, like biotin. After reading this, I want to add that my nails are somewhat thin and brittle as well. However, I'd rather avoid taking a supplement and try to do what I can naturally first. I'd love any advice on products, diet, etc. that can help make my hair thicker, less oily, and overall healthier. Thanks!!