For age management the next best thing for skin beyond antioxidants is the right sun protection. Here is the real story in summary.
There are two types of sun protection;
1)physical (reflects UVR) apply under moisturizers (zinc & titanium dioxide)
2)chemical (absorbs UVR) apply on top of moisturizers
Types of Ultraviolet rays or UVR;
Infra Red Radiation
UVC at this time cannot penetrate the earths atmosphere.
UVB "tanning" ray that triggers an immune response to create pigment to protect
cells. This ray is responsible for almost all sunburns and skin cancer.
UVA 1 Greatest penetrating power, damages collagen & elastin resulting
in wrinkles, premature aging & DNA damage. Leads to lipid peroxidation and
damages vitamin A receptors and oxidizes vitamin C. Increases water loss
and creates dryness.
UVA 2 Can cause slight skin reddening and long term damage
INFRA RED RADIATION
There is no sunscreen or sunblock for this one except shade and protective
clothing. This one is responsible for early aging.
Level of Protection
Don't just look for the SPF # but also look for the level of protection. If it states 93% protection from UV rays it is a chemical block and it just protects from UVB and either UVA 1 OR 2 but not both. 93% is better than no protection at all and it's fine for daily protection but for prolonged exposure like a day on the lake etc then it's best to wear a 30 spf with 100% UV protection meaning a physical block containing micronized zinc and titatianium dioxide.
When it comes to ingredients you need to look for;
1) broad spectrum burn protection
2) oil soluble antioxidants to reduce oxidative stress
3) protection to the skin barrier defence system
4) anti-aging properties
5) Vitamin replacement A,C,E
6) enhance the skins own sun protection systems
7) Zinc and Titanium dioxide are the best physical sunblocks on the market.
15 spf everyday
30 spf for extended exposure with 100% UV Protection