overall advice

updated advice here – http://www.bad.org.uk/for-the-public/skin-cancer/sunscreen-fact-sheet

debate about UV light, melanoma, and sunscreen

https://www.bmj.com/bmj/section-pdf/186530?path=/bmj/337/7663/Head_to_Head.full.pdf

background

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4041476/

case control study

http://cebp.aacrjournals.org/content/early/2010/05/21/1055-9965.EPI-09-1249.abstract

review article

https://onlinelibrary.wiley.com/doi/pdf/10.1111/bjd.16111

RCT follow up with subgroup analysis

https://www.ncbi.nlm.nih.gov/pubmed/21135266

also some evidence re reducing risk of squamous cell carcinoma

https://jamanetwork.com/journals/jamadermatology/fullarticle/479276

https://www.cochrane.org/CD011161/SKIN_sun-protection-including-sunscreens-prevent-basal-cell-carcinoma-and-cutaneous-squamous-cell

early studies shown sunscreen increased melanoma use

https://jamanetwork.com/journals/jamadermatology/article-abstract/478092

bias – in that some people may use sunscreen as a route to being in the sun for longer

Norway study 

https://ascopubs.org/doi/full/10.1200/JCO.2016.67.5934

case control study 2011 found controls used safe sun measures more – cover, sunscreen spf 15 + = small studies, uncertainty, but

http://cebp.aacrjournals.org/content/20/12/2583https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2133.2009.09448.x

JAMA 2018

https://jamanetwork.com/journals/jamadermatology/article-abstract/2687549

childhood sunscreen use and lifetime sunscreen use were significantly associated with a decreased risk of cutaneous melanoma among young adults.

10.1001/jamadermatol.2018.1774

review and meta analysis 2018

10.1001/jamadermatol.2018.1774

French holiday resort given out sunscreens

high SPF group had fewer sunburns

black/asian skins

.http://www.bad.org.uk/for-the-public/skin-cancer/sunscreen-fact-sheet#skin-types

also

https://www.bbc.co.uk/weather/features/44013020

about the detrimental effects of these chemicals on coral and other marine organismshttps://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(18)30224-9/fulltext

Beginning Jan 1, 2021, Hawaii will ban the sale or distribution of any sunscreens containing oxybenzone or octinoxate without a prescription from a licensed health-care provider

 Hawaii, Palau and Key West have started to ban sunscreens with many organic ingredients because they may be damaging coral reefs. Those ingredients include oxybenzone, octinoxate and parabens.

https://www.ncbi.nlm.nih.gov/pubmed/29801220

JAMA/FDA

https://jamanetwork.com/journals/jama/article-abstract/2733085?resultClick=1