Natural Color Restorer for Gray Hair!

Is there a "Natural" way to cover or restore color to graying hair? I found these herbal recipes and suggestions in the net. I personally can't vouch for any of these methods for I have yet to try them myself.

Natural Color Restorer for Gray Hair
Ingredients
1/2 cup dried sage
1/4 cup dried rosemary
Directions
Simmer rosemary and sage in 2 cups of water for 30 minutes, then steep for several hours. Apply to gray hair and allow to dry, then shampoo. Repeat weekly until desired shade is reached, then once a month for maintenance.


Covering Gray
Simmer 1/2 cup dried sage in 2 cups water for 30 minutes, then steep for several hours. Apply to hair and leave on until dried. Then rinse and dry. Repeat weekly, until desired shade, then monthly to maintain color.


Suggestions for Graying Hair
1) Potatoes: Boil potato peels in water, strain, and cool. Use the strained water as an after-shampoo rinse to darken Grey hair
2) Sage covers the Grey when used consistently over a period of time. Simmer 1/2 cup dried sage in 2 cups of water for 30 minutes. Steep for 2-3 hours. Strain, use as rinse on clean hair. Leave on until hair has dried, then rinse out.
3) Mix 1 oz. sage, 1 oz. rosemary and 1 pint of water. Simmer for 30 minutes and strain. Massage into the scalp and gray hair.
4) Mix 1 tablespoon of apple-cider vinegar with one gallon of warm water, use as final rinse.
5) Use an infusion of hollyhock (blue-purple flowers) to remove the yellow cast from Grey hair.
6) Use botany as a rinse to cover yellow in gray hair.

NOTE: IF ANYONE SHOULD USE ANY OF THESE TONICS AND SUGGESTIONS...PLEASE POST A MESSAGE AND LET US KNOW IF THEY INDEED WORK!