What is the difference between a sunblock and a sunscreen?
Sunblocks are opaque formulations which absorb, reflect and scatter up to 99% of both UV and visible light. They are often used on localized, sun-sensitive areas such as the nose, lips, ears and shoulders. Because they are messy and may stain clothing, they are not acceptable for application over large areas. An example of a sunblock is zinc oxide. On the other hand, sunscreens absorb specific wavelengths and are classified as drugs by the FDA because they are “…intended to protect the structure and function of the human integument against actinic damage.” Sunscreens are considered more cosmetically refined due to their pleasing consistency and are, therefore, typically used over a prolonged period of time for effective photoprotection. Sign up for our newsletter to receive monthly specials and exclusive discounts! Click here.
A. Sunblocks are opaque formulations which absorb, reflect and scatter up to 99% of both UV and visible light. They are often used on localized, sun-sensitive areas such as the nose, lips, ears and shoulders. Because they are messy and may stain clothing, they are not acceptable for application over large areas. An example of a sunblock is zinc oxide. On the other hand, sunscreens absorb specific wavelengths and are classified as drugs by the FDA because they are “…intended to protect the structure and function of the human integument against actinic damage.” Sunscreens are considered more cosmetically refined due to their pleasing consistency and are, therefore, typically used over a prolonged period of time for effective photoprotection.
