Sunblock – which one??
We all know that we need to wear a quality SPF year round to protect us from the harmful effects of UV damage. But which one??? With so much information (and misinformation) on the market, do we choose a physical or a chemical?? SPF 15+, 30+ or 50+???
Hopefully this will help shed some light.
Physical Vs Chemical
A physical sunblock reflects UV rays from the surface of the skin. This type of sun protection is often not water resistant. Look for ingredients such as zinc oxide, titanium dioxide and iron oxide (often found in mineral makeup).
Chemical sunblocks absorb and neutralise UV rays in the superficial layers of the skin . Chemical sunblocks often contain Octinoxate, oxybenzone and Octyl Methoxycinnamate and are required to be applied 30 mins before sun exposure for maximum efficacy.
15+ VS 30+ VS 50+ SPF
A higher SPF does not mean higher protection, just a longer period of time that the active ingredients will absorb or reflect the UV rays. Unfortunately most consumers purchase their sun protection based on the higher SPF. As a guide a sunblock with an SPF of 15+ will give 94% UV protection, 30+ will give 97% whereas a 50+ gives 98% protection. As you can see 50+ does not give you three times more protection than a 15+.
It is often added fragrance that cause skin reaction and irritation, not the active ingredients of the sunblock
The cancer council of Australia recommend that you reapply your SPF every two hours and use a minimum SPF 15+ .
At Skin Clinic Clovelly we stock a range of physical and chemical sunblocks that suit any skin type.