Post by account_disabled on Mar 16, 2024 1:21:33 GMT -5
Cosmetics are special chemical products and preparations intended to help maintain personal hygiene, care and general health of the human body. These products usually have direct contact with our skin and we expect them to affect it in a particular way. The cosmetic industry uses a wide range of raw materials rich in elements such as zinc, sulfur, oxygen, carbon or gold. Each of them increases the activity of the formulation in its specific way and, consequently, improves the effectiveness of the cosmetics in which it was used. The following article focuses on zinc, which displays many beneficial properties. Published: 07-21-2023 Zinc in cosmetology: the effect on the skin. Cosmetics that include zinc have been very popular for quite some time. Stores offer it in various formulations, among others in facial creams, tonics, gels or powders designed by leading cosmetic brands. Research has swn that human skin is one of the tissues richest in this element. The greatest amounts of zinc are found in the epidermis, in the spinous layer. The concentration of zinc in the dermis decreases along with the depth of that layer. Zinc participates in many physiological reactions, including the production of prostaglandins, which are responsible for secretory functions. It affects the skin regeneration processes, being an active link in the processing of fatty acids. It also supports collagen metabolism, which is responsible for many functions, including hair and nail growth.
Depending on the chemical nature of the zinc-based material, cosmetic products can sw a wide spectrum of actions. It turns out that zinc acts as an antioxidant and protects against ultraviolet radiation, thus supporting several metds to prevent skin cancer. The antioxidant properties are caused by three factors. Firstly, zinc does not sw oxidation-reduction activity and, consequently, is incapable of producing free radicals. Secondly, the production of free radicals is caused by the presence of harmful metal ions that zinc can replace. Thirdly, the constituents present, such as CZ Leads metallothionein or superoxide dismutase, reinforce the antioxidant properties. The effect of zinc cations on the reactive forms of oxygen produced by nicotinamide adenine dinucleotide psphate (NADPH) is to reduce their activity. Zinc also reduces some byproducts of cellular metabolism, including hydroxyl radicals and compounds containing the superoxide radical. This contributes to the very good anti-inflammatory properties of preparations rich in this ingredient. Zinc has also been proven to accelerate wound healing and prevent infections. Its srtage can cause allergies and skin diseases, since the immune system is altered. It turns out that this causes leukonychia, among others. This is why zinc is essential in cosmetics to maintain good skin condition.
Cosmetics with zinc As mentioned above, some properties of beneficial zinc compounds in cosmetology are common to all of them, but some compounds have functions that are unique. Depending on the form, they also differ in their power of action and bioavailability. Given their anti-inflammatory properties, zinc compounds are used in dermocosmetics aimed at eliminating inflammatory changes caused by diseases such as rosacea, eczema or seborrheic dermatitis. The INCI International Nomenclature of Cosmetic Ingredients , which lists all ingredients used in cosmetics, includes up to 55 different zinc-containing materials. Up to 7 of them have also been accepted by the FDA as safe and effective agents available for purchase witut a prescription. Zinc oxide The most commonly used ingredient for sunscreen cosmetics is zinc oxide. It stands out for its contractive and protective effect on the skin and the ability to reflect and disperse UVA rays. This makes it classified as a physical filter. It is available as a facial cream, milk or fluid containing zinc, to be applied to the skin, where the zinc oxide itself takes the form of a very well fragmented powder. With such a form used for production, the preparations do not block the skin pores or irritate sensitive skin. Zinc oxide also has mattifying properties. For this reason, we can often see it in formulations intended for people w suffer from atopic dermatitis or in cosmetics intended for oily skin.