7environmental Principles

Caused when cell stop dividing

Biology group 1

Khristel L. Almano

Eunelyn C. Pescador

Princess Sarah Rio

Shein Aubrey Dela Torre

Danica Accion

Prince Wendel Abordo

Raymond Jay Banadera

Backround of the study

The first preventive measure you can take is to reduce the amount of UV light that you are exposed to. This can be done either by avoiding the sun completely or more practically by wearing at least an SPF15 sunblock. One danger with using a sun block is that it tends to make people feel like they can go out in the sun more! So they end up with the same amount of UV radiation because they are simply out in the sun longer. For areas that are more exposed, such as the nose and cheekbones, a sun-blocking titanium oxide would probably be best.

Considerable interest has been generated about combining antioxidants with sunscreens to provide enhanced protection against UV rays. Two of the best-known antioxidants are vitamins C and E, both of which have been shown to be effective in different models of photodamage. In a study done on swine skin, vitamin C provided additive protection against acute UVB damage (sunburn cell formation) when combined with a UVB sunscreen. When a combination of vitamins E and C were used, very good protection from a UVB insult occurred. Vitamin C, however, was significantly better than vitamin E at protecting against a UVA-mediated phototoxic insult in this animal model (Darr et al. 1996).

When it comes to makeup and skin care products, people with oily skin should clearly avoid products that have oil in their formula. Those with dry skin need products that have essential oils combined in the formula. Cleansing the skin by washing once daily without astringent products is probably a good idea as well. Facial masks can help hydrate skin, but can be harmful if they cause irritation. They should never be used more than once a week.

INTRODUCTION

* The Anatomy of Our Skin

Skin is the largest organ of the human body,...