Hyaluronic acid is widely used in cosmetic injections to fill in imperfections and lighten wrinkles. Hyaluronic acid injections can improve elasticity, smoothness and firmness, resulting in a more youthful and plumper facial contour. For example, hyaluronic acid injections can be used to fill in lip lines, nasolabial folds, fine lines around the eyes, and more.
As a cosmetic injectable, the molecular weight of hyaluronic acid is an important property.
The molecular weight of hyaluronic acid can affect its effect and duration within **. In general, the higher the molecular weight of hyaluronic acid, the more obvious its filling effect is, but the duration is shorter;Hyaluronic acid, on the other hand, has a lower molecular weight that has better moisturizing and repairing properties, providing moisture and nutrients for a long time.
Depending on the purpose of use and the injection site, the molecular weight of hyaluronic acid can vary. Common hyaluronic acid cosmetic injections are generally divided into three categories:
1.High molecular weight hyaluronic acid: High molecular weight hyaluronic acid is mainly used to fill deep wrinkles and increase facial contours. It can form a more stable filling effect, but the duration is generally shorter, usually around 6 months to 1 year.
2.Medium molecular weight hyaluronic acid: Hyaluronic acid with a molecular weight between high and low molecular weight is widely used to fill medium and deep wrinkles and increase the fullness of the lips. It has good moisturizing and moisture retention functions, and the effect is relatively long-lasting, generally lasting for more than 1 year.
3.Low molecular weight hyaluronic acid: Low molecular weight hyaluronic acid is mainly used for moisturizing and repairing the surface. It is able to penetrate deep layers, increase moisture content, and improve texture and elasticity. The effect of low-molecular-weight hyaluronic acid lasts for a long time, generally lasting more than 1 year.
It is important to note that the molecular weight of hyaluronic acid affects not only its effect and duration, but also its fluidity and transparency when injected. The fluidity and clarity of hyaluronic acid at different molecular weights during injection also vary, and doctors will choose the appropriate hyaluronic acid product according to specific needs.