Olaplex No.4 FINE Bond Maintenance Shampoo & For Fine Hair (33.8 oz XXL LITER) DUO SET #4 KIT

Give your fine hair the ultimate care it deserves with the Olaplex No. 4 FINE & No. 5 FINE Bond Maintenance Duo Set. This salon-sized liter kit is scientifically formulated to breathe new life into fine, thin, or flat hair, providing restorative strength without the weight. The set includes two generous 33.8 oz bottles: the No. 4 FINE Bond Maintenance Shampoo and the No. 5 FINE Bond Maintenance Conditioner. This powerhouse pair works at a molecular level, featuring Olaplex's revolutionary and patented Bond Building Technology™ to seek out and repair broken disulfide bonds caused by chemical, thermal, and mechanical damage. It’s the perfect system to transform fine hair, leaving it fuller, shinier, and healthier than ever before.

The No. 4 FINE Bond Maintenance Shampoo provides a luxurious, airy lather that gently cleanses away impurities, excess oil, and product buildup that can weigh fine hair down. Its ultra-lightweight formula adds body and bounce, creating the perfect foundation for voluminous styles. Following the cleanse, the No. 5 FINE Bond Maintenance Conditioner delivers essential moisture, strength, and detangling power without coating the hair or leaving it flat. This weightless conditioner nourishes and protects each strand, smoothing the cuticle and dramatically improving manageability and shine for hair that feels soft and looks full of life.

Elevate your daily hair care ritual with this professional-grade system designed specifically for the unique needs of fine hair. Both the shampoo and conditioner are vegan, color-safe, and free from sulfates, parabens, and phthalates, ensuring a clean and healthy approach to hair care. By integrating this duo into your routine, you are not just washing your hair; you are actively repairing it from the inside out, protecting it from daily stressors, and building a foundation for stronger, visibly healthier, and more voluminous hair with every wash.