This type of
The effects are cumulative, so extended use over time will create a more vibrant red. The easiest thing is to make it part of your hair care routine if you want continual red hair.
2 cups of water
1/2 cup of calendula flowers or fresh marigold petals from your garden
2 tablespoons of hibiscus petals
Boil the water and simmer with the calendula/marigold and hibiscus for at least half an hour. Strain off the flowers and store in the fridge.
Use as a final hair rinse at the end of each shower.
Dry hair in the sun if possible.
Repeat daily until desired shade is maintained and then every few days to maintain.