UV rays can easily penetrate clouds and glass, so high protection sunscreen should be a non-negotiable step in every anti-ageing skincare routine, even on cloudy days.

Sunscreen shields skin against premature ageing caused by UVA rays, as well as sunburn caused by UVB rays. Both types of rays can cause tanning, and both have the potential, in the long term, to cause skin cancer.

An SPF rating corresponds to a sunscreen’s level of protection against UVB rays - the higher the SPF rating, the higher the protection against sunburn and the risk of skin cancer.

However, when choosing a sunscreen, you should also look out for ‘broad spectrum’ formulas, star ratings, and PA rating systems.

Broad spectrum classification: indicates that the UVA protection is at least one-third of the UVB protection Star-rated system: signals various ratios of UVA to UVB protection PA rating: measures how long it takes for a tanning effect to occur.

Note: A sunscreen’s PA rating is followed by a certain number of pluses. Much like with SPF, the more pluses, the higher the level of protection. PA++++ (4 pluses) offers extremely high UVA protection and is the maximum rating a sunscreen can achieve.

Opt for a high SPF rating and ‘broad spectrum’ formula wherever you can, as well as the highest star rating (5*) and PA rating possible.

All Medik8 sunscreens deliver high SPF ratings and ‘broad spectrum’ protection, with our Advanced range also meeting the highest star rating (5*) of Ultra UVA protection. Advanced Day Ultimate Protect additionally offers the highest rating of PA++++ protection.

Enhance the visible youth-preserving benefits of sunscreen by pairing with vitamin C and vitamin A - as per Medik8’s pioneering CSA Philosophy^Ⓡ which recommends vitamin C plus sunscreen by day, vitamin A by night. Follow this simple, clinically proven approach for glowing, youthful-looking skin.