Foundation creams often contain bentonite which is used to put out fires.It suffocates flames so that oxygen can't get through to inflame fire.  In skincare preparations bentonite suffocates skin, stopping it from breathing.

Liquid foundations may contain mineral oil which is a potential carcinogenic.

Most of us use a moisturiser every day on our skin in hope of improving our skin and protecting it from elements. However majority of them contain molecules that are to large to enter pores of skin. As a result these creams sit on surface of skin gradually blocking pores and glands.

The sweat glands are unable to work properly and oil glands can't drain effectively resulting in build up of toxins and bacteria in skin. This in turn can cause black heads, spots and a dull complexion.

Propylene glycol is also commonly found in skincare products. It's a cosmetic form of mineral oil found in industrial antifreeze, and brake fluid. It acts as a moisture retainer by preventing escape of water or moisture from skin.

Material data safety sheets warn against skin contact with propylene glycol as it can be an iritant and cause liver abnormalities and kidney damage.

It turns out that term “natural” doesn’t mean all that much. Because it’s only been broadly defined by Food and Drug Administration (FDA), it’s a fairly arbitrary term, meaning of which is left up to conscience of food manufacturer. The FDA says that any food can be labeled as natural so long as it doesn’t include added color, synthetic substances or artificial flavors.