Mix 1 tsp apple cider vinegar and 1 tsp glycerin. Mix in a beaten egg. Add 2 Tbsp of caster oil. Apply the mask on the entire length of hair. Use a plastic cap and wrap your head with a towel. Leave the mask on for 2 hours. After: wash your hair using shampoo. The mask should be done 2 times a week for 1 month. Once every 2 weeks after the first month.