Nature's Chemistry: Skin Care Flashcards
1
Q
What is UV light?
A
A high energy form of light that can break chemical bonds
2
Q
Exposure to UV light causes what?
A
Ageing of the skin and sunburn
3
Q
Sunblocks do what?
A
Stop UV light reaching the skin
4
Q
What are free radicals?
A
Highly reactive atoms or molecules with unpaired electrons
5
Q
Free radicals can do what?
A
Take part in chemical reactions that involve the steps initiation, propagation and termination
6
Q
What are free radical scavengers?
A
Free radical scavengers are molecules that react with free radicals to form stable molecules and prevent chain reactions from occurring
7
Q
Free radical scavengers are added to cosmetic products such as skin creams, what else can they be added to?
A
Foods and plastics
