Sunscreen – Why is it necessary?

Protection from the sun is the most important tool for anyone concerned with keeping their skin in it’s best shape. Sunscreen can help: prevent wrinkles, brown discolorations and prevent skin cancer. Without a doubt prevent is worth a pound of cure, and when dealing with anti-aging sunscreen really is the most beneficial product. SPF 15 is the minimum rating to look for and greater is better for some skin colors and conditions. Sunscreen must be applied liberally and UVA protection is crucial.

When using a sunscreen it’s important it contains one of the following active ingredients: avobenzone (sometimes listed as butyl methoxydibenzoylmethane), titanium dioxide, zinc oxide, Mexoryl (ecamsule) or, outside the U.S., Tinosorb.

Sunscreens & Indoor Windows

Sitting next to a window that’s not made of special UV-shielding glass that protects against UVA rays as well as UVB rays (almost all windows protect you from UVB rays, which is why you don’t get sunburned indoors) can mean you need to reapply your sunscreen more often.

However, it’s much easier to:

  • Find out if the windows are made of UV-shielding glass
  • Use blinds to control light exposure
  • Put a UV filtering screen over the window

How Much Sunscreen To Use

It’s suggested to “liberally” apply sunscreen and by this it means enough to ensure that you’re entirely covered. The standard amount suggested by most dermatologists is an ounce of sunscreen (this is about the size of a shot glass).

The shot glass rule is usually used in situations where you have minimal clothing protection (such as going swimming, or at the beach).

The amount of sunscreen you should use on your face should be about a nickel to quarter sized amount – and this rule applies to neck, and chest area. However the amount needed can differentiate between products based on their consistency and texture.

How Long To Wait After Sunscreen Is Applied

Avobenzone, Octinoxate, and Oxybenzone Sunscreens

  • Require 20 minutes to begin protecting from the sun

Titanium Dioxide and Zinc Oxide Sunscreens

  • Provide instant sun protection

How To Use Sunscreen

After you’ve cleansed and exfoliated the skin, apply the sunscreen to the skin.

  • Sunscreen should be used in the morning
  • Apply the sunscreen after you’ve cleansed and exfoliated your skin.
  • Apply a liberal amount to the skin and gently work it in
  • This should be the final step of your skincare routine
  • Sunscreens should be used whenever your skin will have any sun exposure – even when it’s cloudy outside!