What Is SPF?
SPF stands for Sun Protection Factor. It measures the level of protection a product will give you from UVB. The British Association of Dermatologists recommend always using a minimum of SPF 30, which blocks 97% of UVB. To put that into context, SPF 15 blocks 93% and SPF 50 blocks 98%.A person who does not have any sun protection measures will have red skin if they stay in the sun for 20 minutes. When he uses SPF15 sunscreen, it can extend the time by 15 times, that is the skin will be red after 300 minutes. For example: If the skin is slightly reddish after 20 minutes in the sun without applying a sunscreen product, a product with a sun protection factor of 15 will protect you for 5 hours.
20 (minutes) * 15 (SPF) = 300 minutes (5 hours)
20 (minutes) * 30 (SPF) = 600 minutes (10 hours)
This does not mean that the higher sunscreen we choose is better. The higher sunscreen, the greater of burden on the skin. The higher the sun protection index, the more chemical sunscreens are added. Excessive sunscreens can easily penetrate the skin and cause allergies. The larger the SPF value, the worse its permeability, which will hinder the normal secretion and breathing of the skin.
So, are there different types of UV rays?
Yes, the sun emits two different types of ultraviolet radiation: UVA and UVB.
UV A ： penetrates deep into the skin, its extremely harmful to the skin and cause more than 90 per cent of the visible signs of ageing including wrinkles, sagging, rough patches and skin discoloration
UV B ： rays are shorter, burning the surface
SPF是什么？
SPF代表防晒系数。它可以衡量产品对UVB的防护等级。英国皮肤科医师协会建议使用SPF 30，这可阻挡97％的UVB。SPF 15阻止93％，SPF 50阻止98％。一个没有任何防晒措施的人如果待在阳光下20分钟后皮肤会变红，当他采用SPF15的防晒品时，表示可延长15倍的时间，也就是在300分钟后皮肤才会被晒红。
例如：如果在不涂防晒产品的情况下，在阳光下停留20分钟后，皮肤会稍稍变成淡红色，则防晒系数15的产品可保护你达5小时之久。
20（分钟）*15（SPF）=300分钟（5小时）
20（分钟）*30（SPF）=600分钟（10小时）
这不意味着我们选择防晒系数越高的防晒霜就越好。实际情况恰恰相反，系数越高的防晒霜对肌肤造成的负担就越大。防晒指数越高，化学防晒剂添加的也就越多，过多的防晒剂还容易渗入皮肤，引发过敏等问题
SPF值越大，其通透性越差，会妨碍皮肤的正常分泌与呼吸。
那么，是否有不同类型的紫外线？
是的，太阳发出两种不同类型的紫外线辐射：UV A 和 UV B。
UV A ：渗透到皮肤深处，对皮肤极为有害，可引起90％以上的可见衰老迹象，包括皱纹，下垂，粗糙的斑点和皮肤变色
UV B ：射线较短，会灼伤表面
1. Sun Protect Cream Face & Body SPF 30
面部身体防晒霜-指数30
SKU：SO10921
Price：50ml RM85.00
Active Ingredient & Functions：
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SPF30 - Strong protection.
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Lightweight sunscreen recommended for face and body.
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Quickly absorbed, leaving no greasy, sticky feel.
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Protects the skin from sunburn and regular use helps prevent premature aging of the skin.
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Highly recommended after chemical exfoliation of the facial skin.
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Skin care substances help to keep the skin properly hydrated.
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Because of its pleasant yet neutral scent, it is also recommended for men.
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Contains no paraben, petroleum derivative, allergenic fragrance.
Recommended for skin type: Sensitive, Ageing, Combination, All skin type, Normal, Dry, Oily / Problematic
Application： After using the cream, even sunscreen (amount: 1cm diameter circle) on the fingers, pat the entire face, and then apply evenly. Apply 15 to 20 minutes before sunbathing. To maintain protection, min. Repeat in every 2 hours, especially after sweating, swimming or towelling.
成份 & 功能：
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SPF30-强力保护。
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适合面部和身体使用的轻质防晒霜。
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快速吸收，不油腻，无粘腻感。
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保护皮肤免受晒伤，经常使用有助于防止皮肤过早老化。
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强烈建议给去角质护理后使用。
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有助于保持皮肤适当的水分。
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也建议男性使用。
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不含对羟基苯甲酸酯，石油衍生物，致敏香料。
推介给：敏感，老化，混合，所有皮肤类型，正常，干燥，油性/有问题
用法：涂抹面霜后，将防晒霜（份量：直径1cm圆圈）均匀在手指，轻拍全脸，再往耳朵方向涂抹。 在日光浴前涂抹15至20分钟。为了保持保护，至少每2小时重复一次，尤其是在出汗，游泳或擦毛巾后。