Preservatives
prevent the growth of bacteria in cosmetics to extend the shelf-life
of your cream. Examples are essential oils or synthetic parabens, including
ethyls, propyls and butyls. Parabens are non-toxic and approved by
the regulatory authorities. Be sure to find these products in any cosmetics.
Emulsifiers ensure a smooth mixture and consistency. An example is linoelic
acid.
Humectants are commonly used derivatives of mineral oil. They act as a
moisturiser by drawing water from the air to the skin's surface they ‘reverse’ the
age so as your skin looks younger. They also prevent the product from losing
water and drying out. Examples are glycerin and glycol.
Silicone gives the cream a pleasing texture and makes application easier.
Sunscreens to protect the skin are also added. Examples are octyl methoxycinnamate,
titanium dioxide and zinc oxide. One can find them in an anti
oxidant cream.
In addition to these general ingredients for skin-care cosmetics, specific
substances are added in small quantities to give a desired effect – for
example AHA for anti-ageing. Alpha hydroxy acid (AHA) – AHAs, or
fruit acids, include citric acid from citrus fruits, malic acid from apples
and lactic acid from milk. As a group, no other cosmetic ingredients have
been more thoroughly investigated.
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