Targeted Keratin Repair: A Plant-Based Approach to Hair Strength and Surface Restoration

The study investigates the effectiveness of a plant-derived amino acid complex from Avena strigosa seed extract in repairing chemically damaged hair. The treatment significantly improved hair properties, as evidenced by scanning electron microscopy, glossmetry, and tensile testing. Results showed a 23% decrease in surface area porosity, a 105% increase in gloss after five washes, and up to a 30% improvement in tensile strength. Molecular assays confirmed the complex's interaction with keratin, reducing free sulfhydryl groups by 9.2% and stabilizing disulphide bonds. An in vivo study with 20 participants demonstrated enhanced shine and smoothness compared to a placebo. The A. strigosa complex effectively reinforces keratin intra-bonding, offering a promising solution for restoring hair strength and surface quality.