Ms. Tina Knowles recently revealed the treatment behind her youthful skin: salmon sperm. The 71-year old, and mother to Beyoncé and Solange, relies on micro-needling platelet-derived growth factors (a ...

In the ever-evolving realm of injectable skincare, a new contender has emerged: polynucleotides. But what exactly are they, and do they live up to the hype swirling around them, especially in ...