The phrase
"commercial sunscreens" refers to sun protection products that are sold in stores and marketed to the general public.
Full definition
Another part of the answer may involve the potentially harmful chemicals that are found in
many commercial sunscreen formulas.
After removing certain ingredients the researchers compared Solar D, which has an SPF of 30, to a popular
commercial sunscreen with the same SPF, and found Solar D allowed for up to 50 percent more production of vitamin D in - vitro.
Many of the common chemicals in
most commercial sunscreen lotions actually can CONTRIBUTE to cancer, stubborn abdominal fat (due to the xenoestrogens in sunscreen chemicals), and many other health problems.
Dunlap says the coral byproduct is chemically simpler than the aromatic ring molecules at the basis
of commercial sunscreens and thus is less likely to trigger allergic responses.
If you are looking for an alternative to
commercial sunscreens this homemade sunscreen recipe is a great way to go.
There are many reasons to be concerned with
commercial sunscreens (read this post: Is Sunscreen Healthy?).
There's a myriad of toxic ingredients found in
commercial sunscreens.