Zinc oxide is one of the most popular and well-known substances, which has long been widely used in the pharmaceutical and cosmetic industries.
According to the chemical formula, zinc oxide is a compound of zinc with oxygen. The substance is absolutely safe for health in external use. It has a intense anti-inflammatory effect, also has an astriction, antiseptic, drying and adsorbing effects.
Zinc oxide is very frequently used as a basis for the production of drugs for external use and cosmetics, including - children's products. It is very well suited for the care of sensitive skin, protects the skin from ultraviolet radiation, removes odour.
Zinc oxide is involved in many metabolic cellular processes of the skin (reparation and regeneration), restores damaged cell tissues and provides narrowing of skin pores. Due to its absorbability – in other words the ability to soak up a liquid, zinc oxide has a drying effect, as well as promotes the suppression of harmful microorganisms. Ointments and creams, which include zinc oxide, help to keep the wound dry and clean. In addition, the substance has a slight tightening effect.
In case of contact with damaged skin, zinc oxide helps to lower tissue inflammation, while forming a protective barrier from the action of irritating factors.
In modern medical practice, the zinc oxide is most widely used during exacerbation of various skin diseases accompanied with oozing lesion of eczema, atopic dermatitis (neurodermatitis), allergic contact dermatitis, pyodermatitis, trophic ulcers, erysipelatous inflammation, intertrigos, miliaria, streptoderma, etc.
The birthplaces of naphtalan are small wells, located near Baku – the capital of Azerbaidzhan. Due to its origin, it was named – the blood of the Earth. Later on, a city called Naphtalan was based there.
Back in 13th century a traveller Marco Polo mentioned in his notes a healing dark oil, found on this territory. Merchants often came to this region, in order to take an advantage of the oil’s healing power. They took it and brought it home, and later on, started selling it.
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.
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.
Japanese pagoda tree is a flowering tree, flowers of which remind white acacia by shape. This tree was initially present in China and Korea only. Today, Japanese pagoda tree may be seen in Amur River region, Sakhalin, southern part of Eastern Siberia. Japanese pagoda tree belongs to pea family. This plant loves places protected from wind and with sufficient light. Often Japanese acacia (another name of Japanese pagoda tree) is used as a decorative tree. In the old days, Japanese pagoda trees were planted around the temples and were called the trees of Chinese scientists.