Chamomile
•Chamomile rinse: A weekly rinse with chamomile tea can brighten blond and stop any extra dark streaks caused by UV exposure.
–Steep fresh chamomile flowers in a boiling water for 30 minutes.
–Strain and allow the mix to cool.
–Pour the mixture over your head 15 to 20 times; and wrap a towel for a half hour. Rinse with cool water.
Other yellow flowered herbs such as saffron, turmeric, or calendula