Nanomaterials are widely used in cosmetics because of their unique optical, thermal and electromagnetic properties. Nanomaterials can be used to improve the sensory effect and stability of cosmetics. For example, nanometer zinc oxide and titanium dioxide can not only make cosmetics feel better, apply more evenly, but also provide better sunscreen. Similarly, the nano-silver material has a better antibacterial spectrum than its macroscopic particles.

Which Nanomaterials are used in cosmetics?

Nano silver

Since 2002, South Korea has successfully used nano-silver in cosmetics, filling the gap in the nano-silver cosmetics industry. The emergence of nano-silver cosmetics has attracted the attention of many people. It not only has the function of makeup. At the same time, it also plays an antibacterial role to reduce the damage of external bacteria to human skin.

Silver nanoparticles kill bacteria by destroying the cell wall of bacteria, and their antibacterial activity depends on the size of the particles. Smaller particles have better effect. Silver nanoparticles show potential antibacterial effect on infectious microorganisms (Escherichia coli, Staphylococcus aureus, etc.).

Titanium dioxide Nanoparticles

Because of its small particle size and high activity, nanometer titanium dioxide can not only reflect and scatter ultraviolet rays, but also absorb ultraviolet rays, so it has stronger barrier ability to ultraviolet rays. Compared with some organic UV protective agents of the same dose, nano-titanium dioxide has a higher absorption peak in the UV region, and what is more valuable is that it is also a broad-spectrum shielding agent, unlike organic UV protective agents, which only absorb UVA or UVB. It can also pass through visible light, unlike paint-grade TiO2 which cannot pass through visible light.

Zinc oxide Nanoparticles

Ultraviolet rays in sunlight can be divided into UVA (320mm-400mm), UVB (290mm-320mm) and UVC (200mm-290mm) according to their wavelengths. UVB is the main source of burns, indirect pigmentation and skin cancer. UVA has strong penetration and accumulation. Although most of UVC is absorbed by the ozone layer, the damage caused to human beings can not be ignored because of its short wave length, high energy and increasing destruction of the ozone layer.

When nanometer zinc oxide is added to sunscreen cosmetics, it can first provide effective protection against UVA and UVB. Secondly, nanometer zinc oxide has excellent dispersion and transparency, and third, it is safe and non-irritating. Fourth, it has good light stability.

Silicon dioxide Nanoparticles

Nano silicon dioxide has an emission effect on ultraviolet rays, which belongs to inorganic components, and is well integrated without any repulsion, and its own non-toxic, tasteless and white powder can be simply colored. It plays an important role in the development of UV-resistant products, and its price is also very good.

Alumina Nanoparticles

Nano alumina has infrared absorption properties, and it has a good absorption effect on 80 nm ultraviolet, so it can be used as an additive or filler.

Nanomaterials Price

The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.

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Nanomaterials Supplier

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tags: Semiconductors semiconductor industry