Henna gloss to cover greys and condition the hair Bring a big cup of water to a boil, add a tsp of instant coffee powder and two black tea bags,simmer for a while till the decoction reduces to half the amount.Squeeze and discard the tea bags.When the decoction becomes luke warm mix with 3 tbsps of pure henna powder in an iron container and let stand overnight. Simultaneously soak a tbsp of fenugreek seeds in a small mixie jar in enough water overnight.Grind the fenugreek seeds into a paste,add 4 tbsps curds and grind a couple of times till it becomes soft,keep aside for 30 mins to 1 hour. This gives enough time for the fenugreek mixture to thicken up.Whip again to make sure there are no grains left. Just before applying add an egg to the fenugreek mixture and grind again,this is now a very soft and thick mixture.Mix in the fenugreek mixture with the henna mixture. Application - Separate the hair into sections and apply starting from the hair roots till the ends, make a bun.leave for 3-4 hours. Wash with cold or luke warm water.Dry the hair naturally.Oil hair before bed time, leave overnight and take head bath with a herbal shampoo the next day. Repeat the gloss treatment once a week or every 2 weeks as desired. Note - It is always recommended to do a patch test to make sure one is not allergic and use pure henna.My co sil used this and reaped benefits.