This hydrator is the one product from Entwine that I always use regardless of if I wear my hair out or in protective styles. It is necessary during wash days and hydration days for my low porosity hair; it opens up my hair cuticles like no other product and allows my hair to absorb so much moisture. In combination with my other products, it leaves my hair soft and hydrated for days. While a little goes a long way, I recommend using this product within a few months, as it does start to yellow over time. I bought in March and by October, it had started to yellow in color. I threw it out and bought a new one, but honestly, at this price point, I don't mind wasting a little bit of product (which is my own fault as I do protective styling quite a bit to grow my hair).
For routine, I recommend using this product on wet hair if you have low porosity hair and follow up with another spritz, and a creamy leave-in conditioner. I would wait to see how this product affects your hair, as my hair really loves this stuff and opens up my cuticles quite a bit, so I needed a lot more moisture afterwards than I was previously accustomed to (which is a great thing as I have 4A hair which requires a lot of moisture anyway). Again, wait and see and adjust your moisture products accordingly; otherwise, it can make it seem like it dries out your hair when really it just opens up your cuticles for more moisture.
10/10 would recommend.