General molecular weight and application:

High molecular weight HA (> 1.6 million Dalton) has strong viscoelasticity and lubricity. It can be applied on the skin surface to form a moisture-retaining and breathable film to keep the skin moist and shiny. It can eliminate the active oxygen free radicals produced by ultraviolet radiation and protect skin from its harm. HA promotes the regeneration of wounded skin by promoting the proliferation and differentiation of epidermal cells.

Medium molecular weight HA (molecular weight 1 million-1.5 million Dalton) can quickly replenish skin moisture deficiency, repair after sunshine, enhance skin resistance, form a natural skin protective film, improve skin gloss and transparency.

Low molecular weight HA (100,000-600,000 Dalton) is characterized by softening keratin, promoting transdermal absorption, penetrating into the dermis, promoting blood microcirculation, regulating skin metabolism, improving skin nutrition, anti-wrinkle beauty care, preventing skin aging, and maintaining the function of collagen.

Oligomeric molecular weight (< 10000 Dalton) goes directly to the bottom of the muscle, replenishes the endogenous HA for the skin, promotes the synthesis of macromolecule HA, deep