Thickening shampoos, conditioners, and leave-in treatments can help. A healthy diet filled with omega-3 fatty acids, lean protein, and B-complex vitamins along with regular exercise also leads to a healthier scalp and stronger hair.
Some experts recommend regular scalp massages to help thicken strands. The gentle pressure of fingers or a scalp massager helps widen the follicles, leading to thicker strands. It's also highly recommended to help reduce thinning hair and promote growth.