Spray sunscreens are even worse than we thought: a laboured analysis

Published 2024-07-10
Sunscreen sprays seem like the perfect way to reapply sunscreen. But how effective are they? I did some experiments to find out, and the results were pretty shocking.

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0:00 Intro
0:33 Why sprays are tricky
2:33 Where does the spray go?
5:04 More complicatedness: Volatile ingredients
8:49 How much lands on your face?
10:37 What if you try really hard?
14:53 What if you try even harder?
17:21 Even coverage?
18:45 Aerosol sprays are… worse
22:27 What we learned

Aerosol spray studies: www.arpansa.gov.au/sites/default/files/aerosol_sun…, www.arpansa.gov.au/sites/default/files/aerosol_sun…

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All Comments (21)
  • @lygophilia4127
    "plus he wasn't really spraying the spray like a normal person." This is how I describe things my husband does, as well. 😆
  • @dehosyt
    You could tell her scientific background with how critical she is with every one of her experiment and how convoluted she has to be to figure out and solve every flaw
  • @tavolinov.8857
    Tbh the results are insane-. I expected It wouldn't be good but I really did not expect it would be THIS bad... And it's not like I would ever think "Yeah!! It's so REASONABLE and USER FRIENDLY! Obviously I NEED TO SPRAY IT 180 TIMES to MAYBE get enough protection from this!!"
  • @user-rh6ru5oz2o
    The research design stuff is every bit as interesting as the sunscreen information
  • @janette6
    Poor Omar, what a good sport. The toilet sheet was hilarious!
  • @JasonAtlas
    I live in Scotland. Last time we saw the sun my family thought a meteor had come to destroy earth and we fled into heather. I am now for some reason invested in sunscreen.
  • @mv848
    OMG the best channel ever. I believe in science. That's how you move forward in life. No BS! Science, numbers, math......
  • @seanvalentinus
    okay, so i’ve gotten a toilet seat, hung it around my neck, and sprayed sunscreen up both nostrils. that should pretty much cover me for the day, right? do i have to keep wearing the toilet seat all day, or can i take it off?
  • @ER__783
    I cackled with laughter at imperial heathens, I felt seen and attacked all at once hahaha. Loved this video. Greetings from USA.
  • @lumina56
    Me and my bff were in a debate about whether sprays or sticks were better to use (especially for replications) turns out we both were wrong LOL
  • @splendidcolors
    My favorite use of stick sunscreen is to prevent hair dye from staining my face. I hadn't been using it as sunscreen because I couldn't apply it evenly enough and it was visibly whitish when I used enough. But it was on my counter when I dyed my hair purple for the first time in years so I tried it as a stain block. It turns out to be easy to apply to the face, neck, and ears and effectively prevented hair dyes from staining my skin. (I know petroleum jelly is what people usually use, but it's difficult to apply around the hairline without smearing it into my hair, and hair that touches it gets coated and won't take dye.) I realize the SPF ingredients are irrelevant to hair dye blocking, but the waterproof "dry finish" base was useful.
  • Hands down! Sunscreen Queen of Internet. I think since covid period I started to watch your videos. Heavily educational. Love love love that. Thank you for all your hard work. Also I have observed that many doctors, estheticians, influencers started to preach after watching your videos but unfortunately people don't give you that credit. Btw Imperial heathens. Lollllllll 😂😂😂
  • So basically it’s not worth using sunscreen sprays as a form of reapplication, best to stick to cream based sunscreens
  • @KittySheep
    This all really explains why I got burned so much as a kid, and have moles popping up so much. I was expected to spray my own sunscreen, without any adult help, for as long as I can remember. I thought that getting burned even with sunscreen was just expected. Thankfully I use lotions and protective clothing now.
  • @giochacon8354
    LOVE HOW GEEKY this is !!!! thank you for ALL your efforts.
  • @chaoticpoodle
    The best sunscreen is the one you'll use. If it takes wasting 80% of the product to get my parents to wear ANY amount of sunscreen, so be it. Though, I do wish SPF was measured under conditions that even vaguely resemble typical use
  • I will never buy spray again. I didn't like it before but allowed my child to use it for reapplication on the body. But it doesn't provide good enough protection. Boy will he be mad. Thank you for all this very hard work.
  • I am brown, I use chemical sunscreen which avoids white cast. I don usually reapply sunscreen (it's too expensive for me) but when I do, like when I am at the beach or outside for too long e use a cushion foundation sponge to reapply. It doesn't scratch my face with sand nor mess up my makeup underneath.