Yeast extract is packed with essential nutrients like B vitamins (especially Biotin), amino acids, and peptides that promote healthy hair growth and scalp nourishment. It helps strengthen the hair shaft, improve elasticity, and reduce breakage, making hair appear fuller and more resilient. Additionally, its antioxidant properties support scalp health by protecting against environmental stressors and soothing irritation, creating an ideal environment for healthy hair follicles to thrive.