Straight haired baby.. curly mom.

Kat

I am a mixed woman, but my hair is still pretty curly. I would say I have 3C hair (if you know what that means). my sons father has almost stick straight hair, it has a little bit of a wave to it if it grows long. My son is five months old and so far has only ever had stick straight hair.. No sign of waves or curls anywhere. I have no idea how to take care of his hair or what to put in it. But it seems dry a lot of the time. He hasn’t really had cradle cap, he had a small patch for maybe a few days but I just brushed his hair softly in the shower and it went away. I used to use baby lotion for moisture but it didn’t seem like it made a difference, is there anything else I can use? Will oils make it to greasy? ⬇️