Wednesday, April 30, 2008
Topic : How Much Do You Know About SPF?
Many of us ladies would find ways and ways to whiten ourselves, from cleanser, toner, mosturizer, to even mask. But do you know that, sunblock is equally important in our daily life.
Nowadays, many of the foundation are actually provides at least SPF15 of protection. But, we might not know what does SPF mean actually. Here is some brief idea :
SPF stands for Sun Protection Factor and is factor that helps understand how much longer we can be in the sun before burning, relative to our tendancy to burn without sunblock.
For example, assume that you are a fair skinned person who normally burns in 20 minutes. Proper use of a sunblock with SPF 15 would mean that, assuming it does not wash off, you could remain in the sun for 20 min x 15 = 300 minutes before burning. Realistically, with any activity, the sunblock will not remain on the skin for the full 300 minutes and it needs to be reapplied regularly.
Just for your information, SPF does not increase proportionally with a given SPF number. An SPF of 30, for example, blocks 97% of sunburning rays, while an SPF of 15 indicates 93% absorption and an SPF of 2 equals 50% absorption.
So, how should we go about choosing a sunscreen? Here are some factors that we should take note :
- Skin type of user
- Amount applied and frequency of reapplication
- Activities that we engage, ( outdoor, jogging, swimming…etc)
I would not recommend constant exposure to the sun for long hours even if sunblock. Sun will not just burn you, it might cause skin cancer. Remember to choose a sunscreen that meets your needs.
• Rei posted at 11:04 PM •
Sealed with a kiss. Deep in my heart. I'll be back.
