Kind Natured Kids Apple Smoothie Gentle Care 2-in-1 Shampoo

I use this for my toddler's hair. He likes it because it smells nice and appley while washing it although the smell doesn't stick around on his hair. Unless he, you know, wipes mayonnaise in his hair or goes swimming etc. then we can go 7-10 days...

I suffer from allergies so wanted to try this shampoo / conditioner for its natural and gentle properties with minimum chemicals even though it's for children. It does smell nice but I don't find the smell lingers. Need to use a slightly larger amount...