Apple Cider Vinegar Remedy for Dull Hair:
The acid in apple cider vinegar causes the scales of the hair cuticle (the outer layer which surrounds the inner cortex) to contract.
The tightening of the hair cuticles strengthens each strand, helping keep in natural oils and moisture, making the hair more shiny since the surface becomes more smooth.
Mix a few teaspoons of apple cider vinegar to a bottle of shampoo. Leave the shampoo in your hair for a few minutes before rinsing with tepid (not hot) water. The cooler the water, the better it is for rinsing, as it will help keep the cuticle contracted. Hot water will cause the scales of the cuticle to open back up, which weakens the hair.
You can use the apple cider vinegar shampoo every day.
Apple Cider Vinegar Remedy for Oily Hair:
Using an apple cider rinse will help to clean away buildup of hair products, as well as to balance the natural acid in the hair follicles on the scalp and in the hair cortex – all of which help to remedy oily hair.
Mix a few teaspoons of apple cider vinegar to a quart of luke-warm water. Wash your hair first, rinse well with tepid (not hot) water. Pour the warm apple cider rinse over the hair and let it drip through for a minute before gently squeezing excess liquid from the hair. Try to minimize towel drying – you want as much of the rinse to penetrate the hair as possible, instead of drawing out excess moisture into the towel.
Use a wide tooth comb to detangle wet hair as necessary, and let it air-dry or use a blow dryer on low heat setting to style as usual. The apple cider vinegar smell will go away fairly quickly.
You can do this as often as you like.How to Make Apple Cider Vinegar at Home from Scratch