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HOW TO CHOOSE A SUNSCREEN: Know Your UV Filters

Sunscreen is one hot topic with little chance of cooling off anytime soon.  Given the recent hullabaloo over Korean sunscreens testing below stated SPF/PA ratings plus Valisure’s discovery of benzene contaminants in some No. American sunscreens https://www.valisure.com/blog/valisure-news/valisure-detects-benzene-in-sunscreen/ the chatter isn’t going to die down anytime soon. Social media debates over transdermal absorption, hormone disruption, environmental safety, photo stability, nano vs non-nano, inclusion/exclusion by regulatory bodies etc. etc. etc. can get pretty heated. All the fearmongering leaves the humble consumer either confused or with a hefty pile of research to do.

In my videos I review over 30 sunscreens. I also created a reference list below to assist you in deciphering UVA/UVB filters on your sunscreen’s INCI. I recommend keeping it simple. Confirm your sunscreen contains both UVA and UVB filters, you like it enough reapply through out the day and be done. Still stuck? Check out my videos for my favorite mineral and chemical sunscreens, or ask your dermatologist for suggestions.

Then buy a floppy hat, or two, grab a pair of UV protective sunglasses & relax knowing you’re doing your best!  

UVA / UVB Broad Spectrum Filters

Mexoryl XL (L’Oreal): Drometrizole Trisiloxane

Tinosorb A2B: Tris-Biphenyl Triazine (nano)

Tinosorb M: Bisoctrizole, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

Tinosorb S: Bemotrizinol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

Zinc Oxide/Mineral filter

UVA Filters: 

Mexoryl SX (L’Oreal): Ecamsule, Terephthalylidene Dicamphor Sulfonic Acid

Neo Heliopan AP: Bidisulizole Disodium, Disodium Phenyl Dibenzimidazole Tetrasulfonate

Avobenzone: Butyl Methoxydibenzoylmethane

Uvinul A plus: Diethylamino Hydroxybenzoyl Hexyl Benzoate

UVB Filters 

Amiloxate:  Isoamyl p-Methoxycinnamate

Ensulizole: Phenylbenzimidazole Sulfonic Acid

Enzacamene: 4-Methylbenzylidene Camphor

Homosalate: Homomenthyl Salicylate

Icotrizinol: Uvasorb HEB, Diethylhexyl Butamido Triazone

Octinoxate: Ethylhexyl Methoxycinnamate

Octisalate: Octyl Salicylate, Ethylhexyl Salicylate

Octocrylene

Oxybenzone: Benzophenone-3

Polysilicone 15

Titanium Dioxide/mineral filter

Uvinul T 150: Octyl Triazone, Ethylhexyl Triazone

Acknowledgment:

Dan Finaldi – an avid & passionate #sunscreenscholar, artist and one funny guy who’s educational posts and discourse are in large part responsible for educating me (well, trying to educate me) on the complexity of UV filters AND the unnecessary (IMO) heated debates over sunscreen and vilification of various sunscreen filters. Dan is on social media posting break.  However, I encourage you to check out his library of IG posts @danlovesskincare if you have a sense of humor and want to learn more about sunscreen filters. Also check out his UV filters.

*This list is not an exhaustive list of the all the UV filters but likely ones on this list are the ones you will encounter on most INCI lists.

(updated 06/03/21)