I’m not sure what your hair properties are..But I would first start by doing a clarifying treatment to your hair...And then see how your hair feels after to determine if you need moisture or protein...I usually say start with moisture first b/c its easier to deal with o/c hair…If you hair feels limp and is frizzy you could try a light PT…But start with a clarification treatment, I have hard water and can feel build up producing on my hair…I think eventually everyone will need to clarify at some point in time…I know I read a lot about people sealing their hair with oil…you could read some posts about that..Not sure what your weather is like, but most people do seal with oil in the winter..Hope some of this helps…good luck to youJ
2b/c CG since 8/12
I have low porosity and fine/med texture. Easily weighed down and VERY frizzy crown, with straighter under layers

Low-poo:TJ TTT, CJ GCS
LI/RO/DC: CK Satin Roots,Sevi Pumpkin, SSI Okra reconstructor, CJ SAC,CJ RM
Stylers: AG Recoil, JC SS
Jellies: CK Coil Jam, Okra gel(HG)
Gel: JC CC, Ouidad H&H gel, Ouidad moisture lock gel

Hair loves moisture protein.
MUST Pixie diffuse.

My hair dose NOT like oils, butters or polyquats Or glycerin in high dews