Kashmir Keratin Invisible Shield This product is 100% biodegradable , providing temporary realignment of hair fibers. It offers humidity protection and controls frizz, resulting in natural, long-lasting straightening effects without damage. After the first treatment, visible results appear, with progressive improvement noticed after subsequent treatments and washes. It maintains straight hair with a natural look and reduces frizz by 56% within two hours of exposure, with enhanced volume control for up to 72 hours.