What shampoo can bring out natural red highlights?

i dont want to dye my hair but have red highlights in the summer. i want to keep those highlights year round. any suggestions for any type of hair product?





i have dark brown hair with red and blond natural highlights in the sun.





thanks :)What shampoo can bring out natural red highlights?
oh there is a few brands like john freida (and cheaper ones) that make shampoo and conditioner especially to bring out brown, blonde, and red....those would probably work...you just have to look in the store...What shampoo can bring out natural red highlights?
pantene expressions or something like that








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