1] Avobenzone, Oxybenzone, Homosalate
, Octisalate, Octocrylene [sup.
Oktil salisilat (2 etil heksil salisilat) ve Homosalate
(homomentil salisilat) en cok kullanilan salisilatlardir.
In particular, avoid: parabens (butyl-, methyl-, and propyl-), PABAs (para-aminobenzoic acid), padimate-O or parsol 1789, and benzophenone, homosalate
or octy-methoxycinnamate (octinoxate).
Many contained potentially harmful chemicals like Benzophenone, homosalate
and octyl methoxycinnamate (also called octinoxate), which are known to mimic naturally occurring bodily hormones and can thus throw the body's systems out of whack.
Mindy Pennybacker responds: I should have described zinc oxide and titanium dioxide as inorganic sunscreens and benzophenone, homosalate
, and octymethoxycinnamate as organic sunscreens; both types are chemicals.
1) reported on the in vitro and in vivo "estrogenicity" of six ultraviolet (UV) filters: benzophenone-3 (Bp-3), homosalate
(HMS), 4-methyl-benzylidene camphor (4-MBC), octyl-methoxycinnamate (OMC), octyl-dimethyl PABA (OD-PABA), and butyl-methoxydibenzoylmethane (BMDM).
Key ingredients in Skin Authority's new sunscreen include avobenzone, homosalate
, octinoxate, octisalate, octocrylene and oxybenzone.
Results * Significantly increased SPF of test material SPF 4 Homosalate
Unfortunately, most sunscreens contain at least some iffy chemicals, including benzophenone, homosalate
, and octymethoxycinnamate, shown in animal tests to disrupt hormones and affect development of the brain and reproductive organs.
In MCF-7 breast cancer cells, five out of six chemicals, that is, benzophenone-3 (Bp-3), homosalate
(HMS), 4-methyl-benzylidene camphor (4-MBC), octyl-methoxycinnamate (OMC), and octyl-dimethyl-PABA (OD-PABA), increased cell proliferation with median effective concentrations ([EC.
This leaves only 10 ingredients that could be formulated in today's US sunscreen formulations--namely octocrylene, homosalate
, octinoxate, octisalate and ensulizole for UVB protection and avobenzone, oxybenzone, titanium dioxide and zinc oxide for UVA protection.
Focus on a sunscreen product on the US market today with an SPF of 70-110 having more than 40% UV actives (avobenzone 3%, homosalate
14%, octisalate 5%, oxybenzone 6%, octocrylene 7%, and other active UV quenchers and photostabilizers of over 5%) that the consumer is urged to use every time they are exposed to the sun, reapplying it every two hours and more often after swimming or sweating, applying each time a shot-glass full or golf ball size product.