Sunblock Types

Use sunblock to protect your skin.

Sunblock is necessary to protect the skin from cancer-causing UVA and UVB rays. Not all sunblocks are created equally. Due to ingredients, some sunscreens offer more protection, longer protection or greater protection. According to the University of California school of medicine, a sunblock that has a minimum of SPF 30 should be worn every day.

Physical Sunblocks

Physical sunblock prevents harmful UVA and UVB rays from reaching your skin. They are available in titanium dioxide and zinc oxide and are gentle and suitable for everyday use. Physical sunblocks are ideal for people with sensitive skin, as they are less likely to cause skin rashes or irritation, in comparison to other types of sunblock.

Chemical Sunblock

Chemical sunblocks absorb the harmful effects of UV rays before they can harm your skin. These sunblocks tend to better block UVB rays than UVA rays. Chemical sunblocks contain active ingredients such as avobenzone or oxybenzone. As chemical sunblocks sink into the skin, there is an increased chance of allergic reactions and rashes. If you practice outdoor sports, you may want to avoid chemical sunblock as it can go into your eyes if you perspire.

Water-Resistant

A type of sunblock that is perfect for people that are active outside is water-resistant sunblock. While other sunblocks may be susceptible to sweat or wash off in water, these sunblocks maintain the total SPF level of protection after 40 to 90 minutes in the water, depending on the strength of the formula.

Forms

Sunblock comes in a variety of forms. The best one to choose depends on your skin and where you will be wearing it. Sunblock in stick form is ideal for putting on your eyelids, lips and around the ears. One of the most popular forms is creams or lotions. They work for most people and are preferable for people with dry skin. There are lotion forms of sunblock that are specially made for children or people with sensitive skin. Gel sunblock is useful for hairy areas, including the scalp. Spray sunblock is easy and quick to use.

References

• University of California, San Francisco School of Medicine: Sunblock
• Lazacode; What Type of Sunblock is Best For You?; Fern Mascenon; March 2011
• American Academy of Dermatology: Sunscreens