There is a growing tendency for using nanotechnology in the cosmetics industry, in which most worldwide leader manufacturers are using nanotechnology in many of their rejuvenating and make-up products including various creams, moisturizers, sunscreens, personal cares for body, and hair. The heart of applied nanotechnology in cosmetics is the incorporation of fine nanoparticles mostly titanium dioxide and zinc oxide into the products. These nanoparticles less than 100 nm enhance the properties of the products in different aspects according to both the purpose of manufacturers and the demands of customers. The other mostly used aspect in nano-cosmetics with a great importance is liposomes, nanocapsules, and nanoemulsions for delivering functional ingredients to the target. However, nanotechnology still needs to undertake further research and development to be commercialized in the cosmetics industry. Moreover, the environmental health and safety (EHS) considerations of used nanomaterials should be the first priority of companies active in the field because as a double-edge sword, not only nanotechnology offers some advantages for developing the cosmetics industry, but also the exposure potential of nanomaterials may not be overstated. The healing ingredients in nanoscale can penetrate deeper in skin or hair, and therefore have better results comparing to microscales. The nanoemolsions or capsules can carry active ingredients to the target without affecting unwanted areas deeply. The stability of ingredients can be assured by using nanotechnology methods. The better absorbance of ingredients in sunscreen or makeup leads to more natural effects and improved influences. For being sure about the cleanliness in personal care products such as shampoo, razors, brushes, and iron flats, some ingredients like silver nanoparticles were reported due to their antibacterial properties.
Nano-based products of the cosmetics industry are classified into the following subdivisions:
1. Skin care including cream, lotion, skin serum, wrinkle eraser concentrate, skin recharge cleanser, face gel, facial mask, face scrub, sunscreen, sun lotion, body mask, eye contour, eye firming gel, eye serum, mist, and lip balm
2. Hair Care including hair mask, hair styling, and hair serum
3. Sanitizers and sexual well-being including breast mask, breast serum, condom, intimate hygiene, hand sanitizer, and water sanitizer
4. Make-up including balancing foundation, concealer, concentrate, eye shadow, eyeliner facial primer, lash primer, lighting blush, lip contour, lip liner, skin bronzer, and nail polish
5. Shaving preparations including aftershaves and shaving gels
6. Personal care including shampoo, conditioner, iron flat, iron curling, styling iron, dryer, and hairsetter
The keywords used to build up the cosmetics industry nanoproducts database are as follows: Nano + sunscreen, sunblock, sun filter, sun emulsion, sun protection, sun blocking ingredient, lipstick, lip gloss, lip liner, lip plumper, lip balm, lip conditioner, lip primer, and lip boosters, eye liner, face powder, face scrub, skin serum, skin serum, contour powder, contour cream, concealer, eyebrow pencils, sweat proof, moisturizers, lotions, torens, facial mask, body mask, nanocrystal, gold colagen, cellulose, anti wrinkle cream, skin recharge cleanser, shampoo, conditioner, iron flat, iron curling, styling iron, dryer, hairsetter, breast mask, breast serum, condom, intimate hygiene, and sanitizers.