SUNSCREEN SPF50
SPF: Sun Protection Factor:
It is number (index), it could be 20, 30, 50 or even 100. it’s decided in the Lab. this number indicates the level of protection of a sunscreen against Ultra Violet Radiation
The benefits of wearing sunscreens can be summarised as : Protection against sunburn, prevention of premature skin aging and prevention of skin cancer.
What is SPF50
SPF50 Sunscreen: The number 50 means the sunscreen blocks 98% of UVB rays. It also mean that wearing sunscreen SPF50 gives you a 50 times more protection than not wearing it at all.
The sun emits a broad spectrum of radiation, amongst this radiation is Ultraviolet radiation. There are 2 types of this radiation:
1- UVB rays (5%) (short waves ) are responsible for sunburn and skin cancer
2- UVA rays (95%) penetrate deep into the skin which leads to premature ageing and skin cancer
Types of sunscreen
Physical: Also refer to as Mineral. When applied to the skin it physically reflects the radiation back so i will not penetrate into the skin.
Chemical: The sunscreen contains elements or ingredients which absorb radiation and dissipate it as heat, so the radiation penetrates in the skin and reacts with sunscreen ingredients and then turns into heat.
Combination: Some sunscreens use both physical and chemical techniques to block the broad-spectrum radiation
Choosing a sunscreen
1-Skin type: For sensitive skin and to avoid irritation from chemical ingredients, physical sunscreen is recommended
2- Formulation: It comes as lotion, cream, stick or spray, go for the form which you find easy to use and suits your skin preferences
3- Water resistance: If you intend to swim or get sweat opt for water resistance sunscreen
Use sunscreen liberally and re-apply every 2 hours.
Why Choose SPF50?
- Provide broad-spectrum protection
- Blocks 98% of UVB rays hence prevent sunburn and reduce risk of cancer
- Better protection for vulnerable skin types such as fair or sensitive skin
- Last longer in activities like swimming, hiking and sports in general
- Suitable for regions of high altitude (Tropical areas).
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Best SPF50 From Amazon
Korean
My choice COSRX Ultra-light – Why?
It’s light, it’s hydrating. Works on every skin type. No white cast. It’s soothing and made with Aloe leaf, Witch Hazel, and Hyaluronic Acid ingredients. Unscented.
Japanese
My choice Hada Labo Tokyo light Hydrator – Why?
It’s hydrating, moisturizing and broad-spectrum(i.e. against UVB and UVA). Its main ingredient is the super Hyaluronic Acid. It leaves no white cast or any greasy residue. unscented and water-resistant