I believe that every beauty’s dressing table will always place many bottles, which will have a variety of uses of cosmetics. Some cosmetics commonly used for skin care are called XX lotion and some are called XX cream. Are they all the same?In fact, there is a difference:
Although there is no big difference in the raw materials used, both of them are essentially water + oil, but their emphases are different:
Emulsion is water-in-oil system, water is continuous phase, oil is dispersed phase, so when choosing emulsifier in formula, emulsifier with HLB value of 8~18 is the main, and emulsifier with HLB value of 3~6 is the auxiliary.
Cream is oil-in-water system, oil is continuous phase, water is dispersed phase, in the formulation of the choice of emulsifier is just the opposite of emulsion.
HLB, also known as water and oil degree, is a value to measure the hydrophilicity. The larger HLB is, the stronger the hydrophilicity is; conversely, the smaller the value is, the stronger the lipophilicity is.
Because the formula system is different, the water in the emulsion is relatively more, and the oil in the cream is more.
Cream, as the name implies, is paste, frost, solid; Emulsion is a fluid, milky, watery liquid.
Cream due to the formation of solid outside, the viscosity is larger, so the cream touch up relatively thick, viscous, delicate; And the emulsion feels clear and light.
Because the different texture of emulsion and cream, generally speaking, the larger moisture content of the emulsion to the skin permeability is stronger, can be quickly absorbed by the skin, for dry skin moisture supplement. The cream is relatively less permeable and needs a certain amount of time to be absorbed.
Because the water content of the emulsion itself is large, the emulsion is generally suitable for saving in spring and summer, and the cream is more suitable for saving in autumn and winter;
Emulsion suitable for oily skin use, especially in summer, the temperature is higher, the amount of oil is larger, and cream is suitable for dry or neutral skin use;
The use of emulsion is mainly moisturizing, moist; And cream is mainly to supplement nutrition, lock in moisture. The water-locking effect of emulsion is not as strong as that of cream. If it is dry skin, it is far from enough to use emulsion in winter. It can be used together with cream.
Because oil is relatively more, cream is rich in high nutrition, high moisten the component that spend, suit season of autumn and winter of dry skin very much for skin supplement nutrition, moisture and grease. Oily skin avoid by all means goes up in summer day besmear a thick cream.
Cream is opposite for emulsion, some more complex, the face that often uses in facial skin care cream product has day frost and the minute of late frost.
In addition to the basic skin care functions, day cream products also have the function of protecting, preventing and isolating ultraviolet rays to human body. Its ingredients contain UVA sunscreen (ultraviolet wavelength is 320~400nm) or UVB sunscreen (ultraviolet wavelength is 290~320nm).
Night cream products focus on the skin repair, nourishing, let you after the night rest and skin care, skin back to the best state.
Lotion and cream products before use, should be the first facial treatment, it is recommended that the face cream before use with a layer of moisturizing water or emulsion, in order to achieve a better moisturizing effect.
To sum up: emulsion and cream have distinction already have contact again, moisturize the emulsion that moisturizes repair cream is a kind of right to protect skin choice.
Cream products should not be used too much at a time, easy to cause waste, smear on the face, to gently massage with fingers, in order to promote the skin to the absorption of nutrients in the product.
In addition, in the hot summer, the cream products in the refrigerator refrigerated storage, can prevent the loss of nutrients in the product.