Dreadlocks are made of using one own’s hair by twisting and locking
them and this is permissible. In case of wudhu, wiping over the head
is sufficient, while for ghusl, the water must reach the roots of
the hair and your scalp. You say the water reaches the scalp /
roots, so this is permissible.

thanks for the work you are doing. Iam a lady with African type of hair (hard hair).and would like to know if dreadlocks nullifys one’s prayers though wudhu is properly done with water reaching in the roots of the hair. And I read a hadith which says Allah curses those women who put another hair on hers.does those ropes be categorised as human hair?.