What is 'period tax' that Pakistan has abolished after years of protest?

Pakistan has scrapped the 18% “period tax” on menstrual hygiene products, reducing the levy to zero. The tax, often called the “pink tax,” referred to the additional charge Pakistan levied on women’s hygiene products like sanitary napkins and tampons. The tax is historically referred to as a disproportionate financial burden on Pakistani women. Legal reformers spent years seeking its removal.