Help! Bad Hair Days

Valinda • Mom, Wife & Pre- K Teacher , Married 2007, 👼2013, 👶Eli 2016, 👼2017 , 👶Due Jan 2020

I need help with styling my son's hair and have no clue what to do. Elijah's Dad is half black/half white and I'm white so his hair is softer then daddy's hair but not as soft as mine. When he was born, he had silky soft hair but after a year, his hair texture started to change and curl. So we tired vasoline and that was too much but with nothing it's frizzes . I don't want to use hair products due to the chemicals so any suggestions from parents who felt the same way?