Pachuau, Determination of Sun protection Factor
(SPF) number of some aqueous herbal extracts, J App Pharm Sci., 03, 150-(2013).
A NEW series of suncream tests has found that leading brands still fail the sun protection factor
The in vivo sun protection factor
(SPF) of the products was never in question, despite suggestions to the contrary in the popular media (and even in SAMF).
Blistex Lip Brilliance (3.7g, pounds 2.49) Cheap and cheerful, the fruity flavour is a bit off-putting but the blend of vitamin E, silk extracts and grape seed oil with an added sun protection factor
is effective and great value.
Available this month, the new Cetaphil UVA/UVB Defense SPF 50 is formulated to provide daily sun protection while moisturizing the skin, and is billed as providing the highest sun protection factor
available in a moisturizer designed specifically for the face.
Cancer Research UK advises those who want to stay sun-safe and not sun-damaged to: 1 USE cream with a sun protection factor
(SPF) of 15 or higher, apply 30 minutes before going outdoors and re-apply it regularly (about every two hours).
Products currently list a sun protection factor
(SPF) against UVB radiation, but UVA radiation can also cause skin cancer and premature aging of the skin.
Current sun protection factor
ratings generally refer to UVB exposure, which causes sunburn, but not UVA rays, which cause premature skin ageing and can affect the human immune system, say the commission.
The problem is that the sun protection factor
- the figures that can be over 50 - simply compares the intensity of a sun burn (UVB radiation) but makes no reference to the harmful effects caused by UVA radiation.
The second statement is somewhat longer: "The American Academy of Dermatology (AAD) recognizes that proper and regular use of sunscreens with Sun Protection Factor
(SPF) 15 or higher and broad-spectrum (UVA / UVB) protection, along with wearing sun-protective clothing and seeking shade, will help protect against sunburn and may reduce long-term damage to the skin caused by sun exposure."
The new creams' Anti-Age Advanced Protection Moisture, pounds 37.50, and Anti-Age Advanced Protection Eye Cream, pounds 32.50, are not only SPF (sun protection factor
) 25 and antioxidants - but also contain ingredients to battle against the aging effects of sugar.