Liposomes

What are liposomes?

Liposomes are very small spherical vesicles formed by phospholipids, with a structure similar to that of cell membranes.

They are created spontaneously when lipids are dispersed in an aqueous medium. They can be of natural or synthetic origin.

Due to their configuration, liposomes allow the encapsulation of active ingredients for use as cosmetics, which provides greater protection for the active ingredients and allows them to penetrate deeper into the skin.

Liposomes have been used for more than half a century, when studies were initiated to use them to disperse lipophilic compounds. Later, cosmetic laboratories began to develop products encapsulated in liposomes.

Advantages of liposomes

The main functions of liposomes are to protect the active ingredients and transport them to deeper layers of the skin. In addition, being an encapsulation, liposomes allow the introduction of ingredients that cannot naturally penetrate the skin.

  • Protection of the active ingredient: the properties of liposomes make it possible to maintain the stability of the active ingredient.
  • Moisturizing: liposomes, by themselves, can increase skin hydration thanks to their hydrophilic composition.
  • Transportation of assets

Types of liposomes

Depending on the active ingredient to be encapsulated, it is convenient to use different types of liposomes, which vary in size and lamellarity.

When liposomes are released in superficial layers, they are usually larger in size. While to be released at greater depths, they are smaller in size.

Within liposomes all types of actives can be encapsulated, even at the same time, as long as they are not larger than the liposomes themselves.