Blue rinse

A blue rinse is a dilute hair dye used to reduce the yellowed appearance of grey or white hair.

[1][2] The blue rinse gained popularity after Jean Harlow's appearance in the 1930 film Hell's Angels.

[1][2] Israeli politician Benjamin Netanyahu uses the style.

[3] In British politics, the term "Blue Rinse Brigade" has been used to refer to affluent older women involved in conservative politics, charity work, and committees.

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A group of Spanish women with blue-rinsed hair