Lesson 16 – All about SPF

Everything you need to know about SPF! Lesson summary:-UVB rays are responsible for skin burning, cancer and cause damage to the skin cells.-UVA rays are responsible for ageing and tanning your skin. -There are 500 more UVA rays in sunlight then UVB.-UVA rays penetrate more deeper then UVB.-PA +++ tells you the grade for protection […]
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