The composition of a nano-particle is very similar to the composition of a Liposome. Both are spherical membranes encapsulated in phosphatidylcholine- a natural product found in the wall of cells in the skin.
These nanoparticles provide an excellent delivery system for essential fatty acids. The nanoparticles liquefy on contact with the skin, allowing only the active ingredients to penetrate through the top layers; leaving the nano-particle itself behind. Not only does the phosphatidylcholine assist with the penetration of active ingredients but feeding the skin with these nano-particles is essentially feeding the cells more of their own membrane, aiding in growing and repair of cells.
Nano-particles – bad publicity
Often, articles are written which slate the effects of nano-particles used within skin care. Much of this negative press is generated through poor research. Many of these articles fail to distinguish between the use of biodegradable and no-biodegradable nano-particles.
Biodegradable means the components of the nano-particles are metabolised in the same way as other compounds contained in creams and lotions.
- Non-biodegradable components include:
- Metal oxides like titanium dioxide which are widely in sun protection. Titanium dioxide is a component of solid nanoparticles which do not penetrate the skin.
- Solid lipid nano-particles (SLN) contain high melting hydrocarbons and waxes. They combine on the skin into a surface film from which the active agents are released – similar to an occlusive mineral wax containing W/O-system. Currently there are no conclusions that they are able to cause any harm.
- Biodegradable components include:
- Phosphatidylcholine – forms membranes around mostly vegetable oil bodies. With reference to liposomes these “fluid” or “liquid” nanoparticles are sometimes called nanosomes or nanodispersions. Other components can include physiological ceramides, phytosterols, fatty acids and vitamins.
- Liposomes differ from fluid nanoparticles by encapsulating water soluble active agents like vitamin C; their structure is derived from natural cells.
Non-biodegradable components are blocked off by the first skin layer and then combine to form superficial films and then release their active agents into the skin.
So… in actual fact Dermaviduals nano-particles are safe and will only promote good skin and health. So what are you waiting for? Load up on nano-particles!