Sunscreens
There are two types of ultraviolet radiation UVA and UVB. Sunburn is caused mainly by UVB while skin aging, wrinkles and skin cancer -- mainly by UVA. The reason is that light with different frequency tends to attack different types structures in the skin. Most sunscreens, especially those with SPF higher than 15, are very good at protecting agianst UVB and therefore at preventing sunburn, but offer little or no protection against UVA and therefore do not help prevent wrinkles or reduce the risk of skin cancer.

When shopping for a sunscreen make sure that it has SPF 15 or higher and that it offers protection against both UVA and UVB. The best way to "find truth" about a sunscreen is to look at the list of active ingredients and see if they include effective UVA blockers. For a list of the most effective UVA blockers see  Skin Rejuvenation Infopack.

Indirect sunlight
When outside don't assume that wearing a hat or staying in the shade protects you from UV light. Reflected light may retain over a third if its UV rays. When outside always wear a UVA & UVB-blocking sunscreen. You may have heard that glass blocks UV rays. It does block UVB quite well but fails to block much of UVA. This means that in a room brightly lit with daylight you still should wear sunscreen to ensure maximum UV protection.

Downside of light avoidance
Some people choose to stay out of the sun and bright daylight altogether. This is clearly a solution for minimizing UV damage but it does have a significant downside (in addition to reducing the enjoyment of life). In some people, lack of exposure to bright light may disturb normal sleep-wake cycle leading to insomnia and depression. (This has to do with the effect of light on the production of some brain chemicals such as serotonin and melatonin.) Sunlight is also needed for the body to produce vitamin D whose deficiency leads to bone loss and poor immunity. If you have no sun exposure, make sure that you get 100% RDA for vitamin D in your vitamin supplement of in vitamin D fortified milk.

2 . Don't smoke
I hope, dear reader, that you don't smoke for many other health reasons. If you do, keep in mind that smoking damages skin almost as much as sunlight by generating a flood of free radicals. Certain antioxidants may provide partail protection from smoking-related skin damage.

3. Sleep on your back
Most of the day, gravity pulls you skin down, contributing to facial sag and wrinkles. Give your skin a break as you sleep. When you sleep face up, the stretching effect of gravity on your skin is minimal. Besides, when your face is pressed to a pillow, you get more puffiness in the morning.

4. Don't drink alcohol in the evening
Alcohol increases the leakiness of capillaries (small blood vessels), so more water moves from bloodstream into soft tissues. Combined with horisontal position of the body during sleep, this results in facial puffiness, skin stretching and faster wrinkle formation. Moderate drinking at least three hours before going to bed should not cause this problem in most people.

5. Don't wash your skin too often with tap water
Washing strips skin of oil and moisture. Besides, tap water contains chlorine which causes oxidative damage. Washing your face once a day is sufficient. Excessively long and/or frequent showers overexpose your skin to chlorine. Rate of chemical reactions increases with temerature. The higher the temperature of the water, the greater is the damage from chlorine in the water.

6. Other techniques There are several other helpful no cost tips to prevent wrinkles and skin aging. They require investing a little time and effort, but considering what many people spend later in life on reversing preventable wrinkles and skin damage, you can expect a big pay-off. For details see  Skin Rejuvenation Infopack.