23/02/2026
A hair protein refiller is a specialized treatment designed to rebuild and strengthen damaged hair by replenishing its protein content. Hair is primarily made of keratin (a protein), and everyday styling, heat, coloring, and environmental stress can strip away this protein, leading to weakness, breakage, frizz, and dullness. A protein refiller works by filling in gaps and breaks in the hair’s structure with proteins and amino acids, helping to restore elasticity, improve texture, and make hair stronger and smoother. Used periodically, it can help revive dry, brittle, or chemically treated hair, giving it a healthier and more resilient appearance.
