What is the best and healthiest way to grow my hair longer? My type I guess is 4A

my hair I guess is 4a and it's neck level but also my underneath growth is coming out but very slowly while the rest is at neck level. And sorry for my expression...I'm just not feeling it

2 Answers

folic acid and biotin helps with hair growth but if you want something you put directly on the scalp onion juice and red (cayenne) pepper with oil does great also.
I did the onion shampoo, its good but I wasn't tracking any progress. You could try it, don't worry about the smell, no smell after you are out of the shower. Another thing, I think you are a 4C since I don't see any specific pattern in your hair.