DEMELAN sunscreen SPF50 is applied during the day to protect the skin against harmful UVA and UVB sun rays. Demelan(r) Sunscreen offers SPF50 skin protection against UVA and UVB rays. It's water-resistant and is free from parabens and is non-greasy. It doesn't leave any residue on the skin. The most common cause of pigmentation problems is caused by UV damage from the sun rays. Ultra-Violet radiation leads to skin color changes and premature aging. Wearing Demelan SPF-50 sunscreen in Kenya can protect your skin by absorbing and /or reflecting UV rays. Since both UVA and UVB rays are considered harmful, you need protection from both kinds of rays.