The variety of modern cosmetics for skin care can be overwhelming. For example, many are interested in how to choose between whey and fluid and how they differ. To understand this, you need to find out which senby each of these means represents.
What is serum
Serum is a fat or water based emulsion containing a complex of trace elements, vitamins, minerals, antioxidants, fruit acids, etc. Serum contains 10 times more of them than a nourishing cream. That is why serums are also called concentrates or elixirs. Due to its light structure, which occupies an intermediate position between lotion and gel, this cosmetic product penetrates well into the pores and moisturizes the skin.
The formula of the serum is usually aimed at solving a specific problem - lethargy or dryness of the skin, the presence of age spots, wrinkles, oily sheen, etc. The rather high efficiency of this cosmetic product is determined by the high content of nutrients. Serums are able to successfully whiten the skin, smooth it, increase its elasticity, and regulate the sebaceous glands.
Another feature is the substances that increase the permeability of the skin - the so-called "enhancers". Thanks to them, the effect of the serum becomes noticeable immediately after use, the skin acquires a healthy and fresh look. Often such cosmetics are used as a base for moisturizing or nourishing creams.
The greatest effect can be achieved using one line of cosmetics. However, there are also universal serums that are suitable for any cream. Since the accumulation effect is important for them, serums should be used in courses, according to the manufacturer's recommendations.
What is fluid
In their action, the fluids are somewhat similar to a nourishing cream, but they differ in a semi-liquid light structure, in which there is a minimum of fatty components. Thanks to this feature, they are excellent for combination, problem and oily skin. The fluids are absorbed quickly enough, do not cause oily sheen and blackheads on the skin. This cosmetic can be used as a makeup base.
In addition to distilled water, fluids contain substances that retain moisture in the skin, as well as polymers that eliminate excess sebum secretion. In some cases, manufacturers add reflective particles to such cosmetics. Thanks to this, after using the fluids, skin defects are visually hidden and its relief is leveled. Cosmetics that contain SPF (sun protection filters) can be used in the summer as a moisturizing day cream.