SPF meaning in Medical ?

Answer: What is Sun Protection Factor mean?

Sunscreen, also known as sunblock or suntan lotion, is a photoprotective topical product for the skin that absorbs or reflects some of the sun's ultraviolet (UV) radiation and thus helps protect against sunburn and most importantly prevent skin cancer. Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion), sticks, powders and other topical products. Sunscreens are common supplements to clothing, particularly sunglasses, sunhats and special sun protective clothing, and other forms of photoprotection (e.g. umbrellas, etc.).

The first sunscreen in the world was invented in Australia, by chemist H.A. Milton Blake, in 1932 formulating with the UV filter 'salol (Phenyl salicylate)' at a concentration of '10%' Its protection was verified by the University of Adelaide and it was also produced commercially by Blake's company, Hamilton Laboratories. Despite sunscreen being relatively new, sun protection practices have been observed since at least the ancient Egyptians "who used ingredients such as rice bran, jasmine, and lupine" to provide sun protection.

Depending on the mode of action, sunscreens can be classified into physical sunscreens (i.e., zinc oxide and titanium dioxide, which stay on the surface of the skin and mainly deflect the UV light) or chemical sunscreens (i.e., UV organic filters, which absorb the UV light).

Medical organizations such as the American Cancer Society recommend the use of sunscreen because it aids in the prevention of squamous cell carcinomas. The routine use of sunscreens may also reduce the risk of melanoma. However, many sunscreens do not block Ultraviolet A (UVA) radiation, yet protection from UVA is important for the prevention of skin cancer.

To provide a better indication of their ability to protect against skin cancer and other diseases associated with UVA radiation (such as phytophotodermatitis), the use of broad-spectrum (UVA/UVB) sunscreens has been recommended.

In the United States, sunscreens are required to remain effective at original strength for at least three years. Some sunscreens include an expiration date—a date indicating when they may become less effective.

Diligent use of sunscreen can also help to slow or temporarily prevent the development of wrinkles, dark spots and sagging skin.

reference

Full Form	Category
Space Power Facility	Academic & Science
Sine Prole Femina	Academic & Science
Skin Protection Factor	Academic & Science
Portuguese Society of Physics	Academic & Science
Sociedade Portuguesa de Física	Academic & Science
Spruce Pine Fir	Academic & Science
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Spearfish (sd)	Airport Code
Society for the Propagation of the Faith	Associations & Organizations
Standard Policy Form	Business
Standard Pacific Corporation	Business
Site Point Forums	Community
Sustainable Performance Forum	Community
Sygate Personal Firewall	Computing
Stack Pointer Fetch	Computing
Stateful Packet Filter	Computing
Stealthy Packet Filter	Computing
Static Packet Filter	Computing
Spool File	Computing
Source Physical File	Computing
Slide Presentation File	File Type
Synthetic Pigment Feature	General
Sizzle People Fast	General
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Stephen Paul Farber	General
Sun Play Fun	General
Spruce Pine And Fir	General
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Sunburn Protection Factor	General
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Scat Pack Forums	General
Statutory Provident Fund	Governmental
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Singapore Police Force	Governmental
STUARTPURAM	Indian Railway Station
Sender Policy Framework	Information Technology
Sold Pending Funds	Internet
Shortest Path First	Maths
Satisfactory Productive Flatulence	Medical
Sun Protection Factor	Medical
Sunscreen Protection Factor	Medical
Specific Pathogen Free	Medical
Snape Protection Factor	Medical
Sender Permitted From	Messaging
Sphincter Pucker Factor	Messaging
Single Project Funding	Military and Defence
State Portal Framework	Ministry of Communications and Information Technology
Safety Promise Found	Softwares
Sunbelt Personal Firewall	Softwares
Single Point Failure	Space Science
Software Production Facility	Space Science
Spacelab Processing Facility	Space Science
Summertime Phone Functionality	Telecommunication
Black Hills Airport	Transport & Travel