8.5 fl oz, used twice, 75% remaining I have many hair products & this is just not 1 that I reach for. Retails for $30 The N°.4C Bond Maintenance® Clarifying Shampoo, infused with patented OLAPLEX Bond Building Technology™ is our exclusive Broad-Spectrum Clarifying System. The N°.4C Bond Maintenance® Clarifying Shampoo removes damaging impurities from the surface of the hair without stripping or drying. Comes from a dog 🐶 friendly home Offers Welcome Questions please comment below 👇 Thank you for checking out my closet