What is urea?
It is not until the 19th century, when the scientific world learned about an organic compound called urea, when it was extracted in a form of white crystals, reminding by its appearance the white sault. Later, the scientists defined a role of this compound in human’s body and discovered its useful properties. Ever since, the urea has taken an important place in cosmetology and medicine.
According to the norms, the skin should contain about 1% of urea. With urea deficit, the skin becomes dry, irritated, and cracked. Cosmetic and medical products with urea may compensate the deficit of this compound in different dermatological diseases.
The small size of urea’s molecules is its important feature. Such form allows for urea to penetrate in deep layers of epidermis, while transporting biologically active substances. This very feature enforces its properties: moisturizing, soothing, exfoliating, accelerating skin regeneration, reducing inflammation, with antibacterial effect.
Urea is contained in many products, first of all – moisturizing ones. It is also present in anti-dandruff shampoo, colorants, creams used for dermatological diseases and anti-aging creams. Urea is also added to lotions, antiperspirants and toothpastes as an antiseptic and deodorant component.
Epidermis with urea normal level is firm, smooth, and has a healthy color. To achieve such effect, it is added to cosmetic products in a concentration of 2% to 10%. Recommended concentration for a dry, but healthy skin is 5%. For the soothing of rough skin, the urea concentration may be higher, and the highest concentration of this compound is used in medications for the treatment of onychomycosis and burns.
Thus, the influence of urea on human’s organism becomes obvious, and does not cause any doubts. There has been performed a research in Cincinnati university (state Ohio, USA), regarding urea safety application on the skin. It was proven, that urea does not hold any negative effect if applied on skin, inhaled or swallowed.
So what is a natural naphtalan? It is a thick black-brown or brown liquid with a specific smell, which in its appearance is not very different to other types of earth oils.
Naphtalan has a complicated chemical constitution. It contains:
- Cyclic saturated naphtenic hydrocarbons, which are highly different from other earth oils’ naphtenic hydrocarbons and contain cyclopentaneperhydrophenantrenes chain, which is also present in cholesterol, choleic acids, reproductive hormones, vitamin D and other biologically active substances;
- Aromatic hydrocarbons, including benzol compounds.
Zinc oxide is one of the most popular and well-known substances, which has long been widely used in the pharmaceutical and cosmetic industries.
The burdock is often taken for a weed, which is incorrect. Burdock (also named as bur) is a graminaceous weed plant of an aster family, with wide leaves and thorns. However, not many people know how useful this plant is.
Not many know, that an almost is a nut, and it is a seed of an almond pit. Compared to the other pits, almond contains more oil (about 62%).
Almond oil is received from the seeds of bitter and sweet almonds, however the oil of the first type is used in cooking purposes and is added to food, and the oil, received from the second type of almond is only used for a making cosmetic products.