1. In a 50 ml (1.7 fl. oz.) dark glass or PET plastic bottle, mix together all the oils. 2. Cap the bottle and gently shake it to mix the ingredients. 3. To use, apply this serum to the hair and scalp. For even distribution, brush or comb the oil through the hair. 4. This serum can be used daily or every two days after showering to promote hair growth.