Hyaluronic acid (HA) fillers have emerged as a cornerstone in aesthetic medicine, providing an effective, minimally invasive method for soft-tissue augmentation and facial rejuvenation.

Although hyaluronic acid is present in numerous cosmetic and medical products, its effects can vary from person to person.

Picture it: You're in Sephora sifting ... Dr. Jeffy adds. When used in cosmetic products, hyaluronic acid comes in different size molecules—the large ones moisturize the skin's surface, while ...