To prepare a mask for weak hair use a base: well -crushed avocado pulp and a yolk. Add basil and rosemary ether oils, a drop of each, and 2 drops of ylang-ylang ether oil. Rub the blend into the roots and spread all along your hair, then wrap in a towel. Leave on for half an hour, and then thoroughly wash with a shampoo. This mask serves to reinforce roots and improves the appearance of your hair, leaving it shiny and elastic.