Biggest Skincare Myths and What to Do Instead | Lab Muffin Beauty Science

So many skincare myths, so little time to debunk them! Here are 5 of the biggest skincare myths, why they’re not true according to the science, and what you should be doing instead.

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Lab Muffin Beauty Science is a channel by me, Michelle – I’m a chemistry PhD and beauty lover, here to explain how beauty products work, debunk myths, and help you make smarter decisions about your skincare, hair and makeup!




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  1. Lab Muffin Beauty Science says:

    What skincare myth do you want me to break down? Leave it in a comment!

    • Cecile Pham says:

      Just wanted to thank you for such an informative video!

    • apple tree says:

      What do you think of the carnivore diet like the youtuber Frank Tufano?

    • Livie Rose says:

      Not all of these are strictly skincare, more just beauty/hygiene, but here goes
      1. Deodorant: the “green” crowd mentions aluminum, etc. as problematic (also some say we should cook with aluminum foil for the same reasons). Not sure what is myth here but would love your thoughts.
      2. Toothpaste: sls and fluoride specifically. The truth (especially because I think in the US some places we have fluoride in our drinking water?).
      3. Not a myth, but I know you mentioned issues with myths in “green” or “clean” beauty, but do any of these products work? Do these some of these companies have beauty scientists who know what they are doing? I’d love a video more directly on “green” beauty. I can see errors, but does that mean none of it is better or works? I’m still clinging to a lot of it because I’m still afraid of conventional stuff (I mean in past history we put lead and arsenic on our skin plus I don’t trust all the big companies and ethics all the time, who are their beauty scientists, are they being honest about their products, are there political/corruption issues?), possibly I’m still brainwashed plus I get information overload. Also, I’m really only into beauty stuff to “fix” my skin. I’d prefer as minimal as possible.

    • Tonah 93 says:

      Dark skin people doesnt need apply sunscreen whereas fair or white skin people need apply. Yeah i was jealous of dark skin people but i found out all skin colour should apply sunscreen. Such life.

    • Monica Calhoun says:

      Mari Star yeah, that was something else..🤔

  2. Yoshian Blue says:

    I should’ve watched this earlier! Subscribed ✌︎

  3. Palladio 747 says:


  4. Yuqi Chen says:

    Thank you for the video. One thing that’s still unclear to me is that do I have to wait 20 mins to do my make up after sunscreen application?

  5. HotandFlashy says:

    Hi Michelle~ Great video! Do you have any inside chemist scoop on whether percentage of sunscreen ingredient is directly linked to spf? I do my big all-mineral sunscreen testing every year and since I’m not a scientist I go on the assumption that the spf on the label is accurate, but I get comments from some viewers who say only sunscreens with a minimum of 10% Zinc Oxide can really provide spf 50…. I’ve looked for info on this or where it came from but can’t find anything on it. Some of my faves have 4% each ZO & TD, or 7% each ZO & TD, yet others have 20% zinc but all are spf 50. My understanding is it’s all in the formulation and the particle size of the ingredients… If you could shed some light I’d appreciate it! xo ~angie

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