Epigenetics is a groundbreaking field of science that examines how external factors influence the function of our genes without changing the underlying DNA sequence. You can think of your DNA as the hardware of a computer, while epigenetics acts like the software that determines how your genes operate. It plays a crucial role in hair growth, strength, and overall vitality. Factors like stress, diet, environmental toxins, and even the products you use can "turn on" or "turn off" certain gene expressions, thereby affecting the health and growth cycle of your hair.