What type of hair helps absort the most oil?
Day 1: we collected 30 different hair samples weighed them with a very precises weigher, then we let them soak in oil for an hour and a half and reweighed them and mesured the difference, and what hair types absorbed the most oil.
Day 2: we got some more hair and washed it in 5 different types on shampoo (the shampoo is not rinsed off)
