Mix a tsp of apple cider vinegar and a teaspoon of glycerin. Mix the ingredients until smooth. Mix in a beaten egg. Mix well. Add 2 Tablespoons of caster oil. Thoroughly mix. Apply the mask on the entire length of the hair. Place the plastic cap and wrap your head with a towel. Leave the mask on your hair for 2 hours. After wash your hair using shampoo. The mask should be done 2 times a week. Do this for 1 month. After 1 month, you can make masks for prevention – Apply 1 time in 2 weeks.