Luseta Biotin & Collagen Serum 3.38ozSupport fuller, healthier looking hair with Luseta Biotin & Collagen Hair Serum, infused with biotin, collagen, and argan oil to help stimulate the scalp, promote growth, and improve thickness and shine. This nourishing serum strengthens the hair shaft and protects against UV damage and pollutants, leaving hair soft, smooth, and voluminous. Key Benefits: Encourages healthy hair growth with biotin and collagen Adds volume and thickness for a fuller