Mix coffee with vinegar: the reason why all women in France do this

1 cup brewed coffee (cooled)
1-2 tablespoons apple cider vinegar
Instructions:

Brew a strong cup of coffee and allow it to cool.
Mix the cooled coffee with the vinegar.
After shampooing, pour this mixture over your hair and scalp.
Massage gently and leave it in for a few minutes before rinsing thoroughly with water.
This rinse can help enhance hair shine and remove buildup while potentially improving scalp health.

Why French Women May Swear By It