<p data-start="74" data-end="783">The Ordinary Multi-Peptide Hair Density Serum is a concentrated, daily-use scalp treatment formulated to support the appearance of thicker, fuller, and healthier-looking hair with consistent application. This advanced serum is designed to work at the scalp level, where hair growth and density begin, rather than focusing solely on the hair fiber. By delivering a high concentration of hair-supporting technologies directly to the scalp, the formula helps improve the overall look of hair density, strength, and vitality over time. The lightweight, fluid texture spreads easily across the scalp and absorbs quickly, ensuring comfort without leaving residue, greasiness, or buildup.At the core of the formulation is a 21.5% concentration of multi-peptide and hair-thickening technologies, carefully combined to support the scalp environment and enhance the appearance of hair fullness. These technologies work together to improve the look of hair density and body, helping hair appear more voluminous and resilient from the roots. The serum’s water-based, unscented formulation makes it suitable for daily use and easy to incorporate into both simple and advanced haircare routines. Its lightweight nature allows it to be applied after washing and before styling without interfering with hair texture or styling products.Designed for all hair types, this serum focuses on long-term improvement rather than temporary cosmetic effects. With regular use, hair appears denser, healthier, and more robust, while the scalp feels balanced and supported. The leave-on format allows the active ingredients to remain in contact with the scalp for extended periods, maximizing performance without disrupting daily routines. By emphasizing targeted scalp care through a minimalist yet performance-driven formulation, this hair density serum offers a reliable solution for improving the visible fullness and overall appearance of hair.</p> <p data-start="2031" data-end="2508"><strong data-start="2031" data-end="2047">Key Features</strong><br data-start="2047" data-end="2050" /> This hair density serum is formulated with a high 21.5% concentration of multi-peptide and hair-thickening technologies designed to support the appearance of fuller, thicker-looking hair. The lightweight, water-based texture ensures fast absorption and comfortable daily use without leaving residue or weighing hair down. Its unscented formulation makes it suitable for regular application and compatible with a wide range of haircare and styling routines.The serum is designed to work at the scalp level, helping improve the overall environment where hair growth occurs and supporting long-term improvements in hair density and body. Its leave-in design allows continuous performance throughout the day, enhancing the appearance of volume and strength over time. With consistent use, hair looks healthier, more voluminous, and visibly denser, reflecting the benefits of focused, scalp-first hair care.</p> <p data-start="2958" data-end="3110"><strong data-start="2958" data-end="2972">How to Use</strong><br data-start="2972" data-end="2975" /> Apply a few drops to the scalp once daily after washing and before styling. Massage gently into the scalp and leave in without rinsing.</p>