Titanium dioxide is considered to be one of the best sunscreen ingredients, particularly for those with rosacea or sensitive skin. It is very popular in the world of skin care because it can easily be used around the eye area, without causing a stinging or burning sensation. It protects the skin from UVA and UVB radiation and doesn’t leave the skin with an irritated feel. Despite being a natural ingredient, titanium dioxide is almost always found in adulterated concentrations which include contaminants such as iron and lead. This is why it is essential to purify titanium dioxide using synthetic processes before it can be used in sunscreens.
Titanium dioxide is coated and micronized before it can be used in cosmetic products. The micronizing process gives titanium dioxide its heavier-feel and also makes it easy to spread the ingredient on the skin. The micronized processes give titanium dioxide better stability as well as better sun protection abilities. Micronized titanium dioxide ensures that the sun’s rays do not penetrate your skin, thereby eliminating the concerns of the ingredient getting into your body. This lets the skin receive ample sun protection, without facing any risk of damage to its delicate cells.
The coating process helps titanium dioxide to offer a better application, prevent it from interacting with other ingredients under sunlight and enhance the sun protection capacity. This gives it a better stability and makes it more pleasant to use. It also improves the overall efficacy of titanium dioxide and eliminates study concerns associated with the ingredient. Some of the most common forms of titanium dioxide include silica, dimethicone, alumina and glycerine.
The titanium dioxide that is used in sunscreen products is also made to go through a surface modification to ensure its stability and efficacy. Common examples of surface modifier ingredients that are used in titanium dioxide include isostearic acid, stearic acid and dimethicone/methicone copolymer.
The UV light absorbing capacities of titanium dioxide are the main reason why it is used in sunscreens. It makes the skin resistant to discoloration under the influence of UV light. This is why titanium dioxide is one of the best ingredients for broad-spectrum SPF sunscreens that can be used in all types of sun protection products all over the world.
There have been some concerns about the safety of titanium dioxide as a sun block ingredient, but it has actually been used as a sun block and cosmetic ingredient for ages. It is non-irritating and is also known to be more compatible with sensitive skin. Moreover, titanium dioxide is known to have significant photocatalytic activity and might even promote the creation of free radicals. However, since the ingredient doesn’t get absorbed into the skin, the effects do not end up damaging your skin.
One of the biggest complaints about titanium dioxide is that it leaves a white colored residue on the skin. This creates a whitish tint and is easily visible to the naked eye. New formulations using nanoparticles are being developed to let titanium dioxide get rid of its whitish tint, but the nanoparticle based titanium dioxide still needs to undergo further research before it can be successfully implemented in skin care.