Age |
Dosage |
19-50 |
200 IU |
51-69 |
400 IU |
70 and older |
600 IU |
Sunscreen Chemistry |
Sunscreen verses Sunblock |
Home |
Discovery of Sunscreen | Active Ingredients |
Skin Cancer |
Portrait of the Sun | SPF |
Want to Learn More? |
Ultra-Violet Radiation | Lesson Plans |