A typical white tee shirt has an SPF of 3. Colorless dyes are available as laundry products which increase the SPF of fabrics to an SPF of 30. If you must be in the sun, use a broad-spectrum sunscreen with a Sun Protection Factor (SPF) of at least 30, even on cloudy days.
www.aad.org/public/publications/pamphlets/sun_sunscreen... www.aad.org/public/publications/pamphlets/sun_sunscreens.html
The American Academy of Dermatology recommends using a broad-spectrum sunscreen with an SPF of at least 15 on a daily basis throughout the year. An important note is that no sunscreen can be effective unless it is properly and frequently applied.
www.medicinenet.com/script/main/art.asp?articlekey=4637... www.medicinenet.com/script/main/art.asp?articlekey=46376
Know how to select and apply a good sunscreen to protect your skin from sunburn and other skin damage. ... Chemical sunscreens absorb UV rays before they can cause any damage. They contain one or more ingredients, such as avobenzone or oxybenzone, which absorb UVA or UVB rays. For broad protection,
www.mayoclinic.com/health/sunscreen/SN00044 www.mayoclinic.com/health/sunscreen/SN00044
Sunscreens that shield your skin from the fullest possible range of damaging ultraviolet rays are broad-spectrum sunscreens. Sunscreens that contain Parsol 1789 (avobenzone), in addition to zinc oxide and titanium dioxide, provide "bro...
http://dermaplenish.com/inside/impinfo.html
CONTEXT: High nevus density is a risk factor for cutaneous malignant melanoma. ... Modeling of the data suggests that freckled children assigned to a broad-spectrum sunscreen intervention would develop 30% to 40% fewer new nevi than freckled children assigned to the control group.
www.medscape.com/medline/abstract/10865273?queryText=su... www.medscape.com/medline/abstract/10865273?queryText=sunscreen%20use%20not%20tied%20to%20malignant%20melanoma
Sunscreens, sunblocks. Authoritative facts about the skin from the New Zealand Dermatological Society. ... Use a good broad-spectrum sunscreen of at least SPF 15 and made up of a benzophenone chemical absorber plus a physical blocker (titanium dioxide or zinc oxide).
dermnetnz.org/treatments/sunscreens.html dermnetnz.org/treatments/sunscreens.html
Intervention  Parents of children randomly assigned to the treatment group (n=222) received a supply of SPF 30 broad-spectrum sunscreen with directions to apply it to exposed sites when the child was expected to be in the sun for 30 minutes or more.
jama.ama-assn.org/cgi/content/full/283/22/2955
The new broad-spectrum sunscreen is to be sold over-the-counter (OTC) in a daily moisturizer called Anthelios SX by L'Oréal. It contains a new molecular ingredient called ecamsule, which — together with other sun filters — is designed to block a broader spectrum of the sun's harmful UV rays.
www.revolutionhealth.com/conditions/skin/skin-care/sun-... www.revolutionhealth.com/conditions/skin/skin-care/sun-exposure/sunscreen-rays
Broad spectrum sunscreen - 14,920 results from 1675 stores, including Skinceuticals Daily Sun Defense Moisturizing Broad-spectrum Sunscreen SPF 20, 3-Ounce Tube, OBAGI C - Sunguard SPF 30 Broad - Spectrum UVA/UVB Sunscreen, 3 fl oz, BANANA BOAT Ultra Defense Broad Spectrum Sunscreen SPF 15 SPF 15 .57lb., Sisley - Sisley ...
www.thefind.com/beauty/info-broad-spectrum-sunscreen www.thefind.com/beauty/info-broad-spectrum-sunscreen
one group was exposed unprotected and the other two were exposed after being applied either a ultraviolet B or a broad-spectrum sunscreen, each with the same sun protection factor 9, but with different ultraviolet A protection factors 9 and 2. Then, an outdoor study was conducted in which delayed-type hypersensitivity...
www.nature.com/jid/journal/v117/n5/full/5601268a.html