Although it is not an official medical term, it has been frequently used in recent years to describe various treatments that improve the appearance of the skin and reduce the signs of aging such as wrinkle formation, loss of moisture and elasticity, sagging or collapse, spotting, dryness and tissue regeneration in the skin. In particular, products containing hyaluronic acid, collagen and other nourishing ingredients can be called “youth vaccines”. These treatments aim to tighten the skin by increasing the skin’s moisture balance and elasticity, thus reducing the signs of aging and making the skin look younger. The youth vaccine is often used to reduce fine lines and wrinkles, even out skin tone and give the skin a more radiant appearance. The term youth vaccine is a broader concept that encompasses skin resurfacing and anti-aging treatments. All of these treatments aim to improve the appearance of the skin and delay the signs of aging.