Question: how do you dye your hair with lemon juice without sunlight?
Answer: Citrus juice helps lighten the color of your hair, so go for straight vitamin C to concentrate the effect. Crush a dozen or two vitamin C tablets into a paste and mix with a tablespoon or two of dandruff-reducing shampoo. Comb the paste through your hair; cover with a shower cap and allow it to sit for an hour or two.