Experts claim that one should use sunscreen with an SPF of at least 30. SPF stands for Sun Protection Factor that indicates how much protection your sunscreen offers from UV rays. Higher the SPF, higher is its ability to protect against harmful UVB rays. However, this is not completely true as sunscreen beyond SPF 50 are makes very little difference in terms of risk of sun damage. Chicnutrix Block gives you SPF 45 PA+++ which prevents your skin from a broad spectrum of UVA & UVB sunrays.