An easy way to use aromatherapy for dandruff is to add a few drops of the chosen essential oil to your shampoo (preferably unscented, nondetergent shampoo). Adding 8 to 12 drops to an 8-ounce bottle is a good place to start, though you can try using more, if you don't find it too strong.
For a good anti-dandruff, conditioning blend, add 8 drops lavender and 4 drops tea tree to your 8-ounce bottle of shampoo.
Aromatherapy Hair Recipes For Dandruff
Here are before- and after-shampoo hair treatments for dandruff:
5 drops lemon essential oil
2 drops lavender
1 drop rosemary
2 drops peppermint
10 drops carrier oil (jojoba is particularly good for hair)
Blend the oils.
Thoroughly massage one teaspoon into your scalp for 2 to 3 minutes.
Leave on for 15 minutes.
Shampoo as usual, adding 2 to 4 drops of a chosen essential oil to one teaspoon shampoo.
Post-Shampoo Dandruff Hair Rinse
4 drops rosemary
4 drops lavender
2 drops tea tree
1/3 cup vinegar
2/3 cup water
Mix ingredients and shake well. Use it to rinse your hair after shampooing.
Note: The vinegar smell quickly goes away.
Also, according to the EPA, witch hazel helps fight dandruff. Add a few drops of essential oil to half a cup of witch hazel and use it as a rinse.