Here's why:
* Lemon Juice Lightens Hair Overall: The citric acid in lemon juice acts as a mild bleaching agent when exposed to sunlight. It lightens the overall hair color, including any green tones present.
* Green Tones in Blonde Hair Usually Come from Chlorine or Minerals: Greenish tints in blonde hair are often the result of:
* Chlorine: Chlorine in swimming pools can bind to the protein in hair and deposit copper, leading to a green hue.
* Minerals in Water: Copper or other minerals in hard water can also build up and cause green discoloration.
* Lemon Juice Won't Remove Minerals: Lemon juice primarily lightens and does not effectively remove mineral buildup. It might lighten the green, but not eliminate the underlying cause.
What you should do to remove green tones:
1. Clarifying Shampoo: Use a clarifying shampoo to remove mineral buildup. This is a good first step.
2. Tomato Paste/Sauce: The red pigments in tomato paste or sauce can help neutralize green tones. Apply to the affected areas, leave on for 20-30 minutes, and rinse thoroughly.
3. Baking Soda Paste: Make a paste of baking soda and water, apply to the green areas, and leave on for a few minutes before rinsing. This can help lift the minerals.
4. Chelating Shampoo: Chelating shampoos are specifically designed to remove mineral buildup.
In summary:
Lemon juice is not an effective or recommended solution for removing green tones from blonde hair. Focus on methods designed to remove the underlying cause of the green discoloration, such as mineral buildup from chlorine or hard water.