rayoflight
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Something with minerals, zinc oxide or titanium dioxide, preferably non-micronizer (a rarity these days) or the hi-tech Z-cote transparent particles. They form a thin layer on skin that reflects and scatters UV light, so they UV rays don't even get to skin, provided you use the correct amount and reapply often. http://www.ncbi.nlm.nih.gov/pubmed/17493070
Reapplication is vital, cause there are no sunscreens that work all day long, most break down within 2 hours. Physical sunscreens (zinc oxide or titanium dioxide) do last longer, but still need to be reapplied.
Also don't be fooled by high SPF numbers, a SPF sunscreen wont protect you all day long, thats a common misconception. A SPF 100 sunscreen will still break down after 2 hours. http://www.fda.gov/AboutFDA/CentersOffices/CDER/ucm106351.htm
But UVA protection is more important if you want to avoid pigment, zinc oxide and filters like Tinosorb M and Tinosorb S are the best for stable UVA protection that will keep skin from developing pigment. (and using lactic acid and or vitamin c products to help fight pigment production is also one of the many options)
I thought that L'Oreal suncreens with Mexoryl XL and SX are also good for that, but recently I had to find out that they are not wroth the hype. I used a Garnier sunscreen with SPF 50 and both Mexoryl XL/ SX and still got tan. They prevent burning, but not pigment and if I see pigment it means UVA rays got past their filters and I have sundamage now. So staying away from overhyped La Roche Posay, Garnier, Loreal, Vichy sunscreens might be a good idea.
Reapplication is vital, cause there are no sunscreens that work all day long, most break down within 2 hours. Physical sunscreens (zinc oxide or titanium dioxide) do last longer, but still need to be reapplied.
Also don't be fooled by high SPF numbers, a SPF sunscreen wont protect you all day long, thats a common misconception. A SPF 100 sunscreen will still break down after 2 hours. http://www.fda.gov/AboutFDA/CentersOffices/CDER/ucm106351.htm
But UVA protection is more important if you want to avoid pigment, zinc oxide and filters like Tinosorb M and Tinosorb S are the best for stable UVA protection that will keep skin from developing pigment. (and using lactic acid and or vitamin c products to help fight pigment production is also one of the many options)
I thought that L'Oreal suncreens with Mexoryl XL and SX are also good for that, but recently I had to find out that they are not wroth the hype. I used a Garnier sunscreen with SPF 50 and both Mexoryl XL/ SX and still got tan. They prevent burning, but not pigment and if I see pigment it means UVA rays got past their filters and I have sundamage now. So staying away from overhyped La Roche Posay, Garnier, Loreal, Vichy sunscreens might be a good idea.