Shampoo for thick and black hair

• Take hibiscus leaves and curry leaves in equal quantity and paste it with water. Now apply this to oil applied hair. 
• Wash off your hair after an hour with shikkai/reetha powder. 
• Need to apply oil to hair before since it may make your hair dry. 
• Apply this twice a week and you can see the difference in 3 weeks. 
• In addition you can add few neem leaves which helps to keep your scalp away from dandruff.