What is the ruling on bleaching eyebrows, and does it prevent the validity of purification and prayer? And is it necessary to re-perform past prayers due to bleaching?

We have previously explained the permissibility of bleaching eyebrow hair, and that bleaching material is not always water-resistant; some types are water-resistant, some are not, and some wash off. We have also explained the ruling on coloring eyebrows with a color close to skin tone. There is no need to make up past prayers if you were unaware that your purification was incorrect, and one should not open the door to obsessive doubts (waswas).