I finally got a tripod, it's hard to demo things with just two hands. Look out M. Night Shyamalan, I can't direct either.
If you’re considering a haircut, dont forget to check if you can make a donation! If you spend some time researching, you’ll find many organisations now accept greying or processed hair!
What's the best order to use your product? There's a lot of differing opinions on it, but I have yet to find much scientific or experimental evidence that lays out a clear order. In reality, most cosmetic research is performed with only one or two products (often a control) and order of application isn't often a variable. Sunscreen, for example, is only applied to clean skin with no products after. Based on that, if you want the protection on the label you should only use it on clean skin with nothing after. But many of us don't use skincare like that and will often use multiple products in our routine. But as I said, not a lot of data to provide guidance. I found this experiment performed by Chinese researchers that looked at the order of application with a cream and toner, as well as further reapplication of either the toner or a mineral water spray. The products used were a Winona brand cream and toner and Avene's Thermal Spring Water. They measured the skin hydration of 20 female subjects (divided into normal and dry skin) with a Corneometer and found that order application didn't matter when using a cream and toner together. Interestingly, using the water spray decreased skin moisture with each reapplication, whereas toner boosted hydration. This one's a bit too complicated for an Instagram description so hit the link in bio to read! Source: PMID 29394018 #kbeauty #abcommunity #skincare
"Remember to look up at the stars and not down at your feet," he said. "Try to make sense of what you see and about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do, and succeed at. It matters that you don't just give up."
Top panel: Me with retinoids, this won't be so bad Bottom panel: 1 week later
This is a microscopic image of normal human epidermal keratinocytes (NHEK). These are harvested from people and can grow in lab conditions just like the ones in your skin would. They can even form the stratified layers that we see in our skin. By growing NHEKs in different conditions researchers can see how certain chemicals and conditions (like UV) affect the chemicals they produce, how they form, and how viable and healthy they are. Claims on how a cosmetic ingredient can boost collagen or some other effect are often studied on cells just like these. NHEKs are important for other types of research too, they can help us understand the mechanics of cancer and other diseases - providing us with new pathways to target with therapies and treatments.
The secret is industrial spies and garlic.
Just some of the incredible people I've met over the years. I'm so proud and happy to call you friends! @aboutliahyoo @kflemming @keepitbloom @gothamista @charlottejcho @christine_glow @aliciayoon212 @emilydougherty @fanserviced @arabellesicardi @skinandtonics @ivory717 @tealeavesandtweed @mar1onette @sabletoothtigre @cottoncodinha @dat_seoul_glow @vanessacraft @victoriadiplacido @labmuffinbeautyscience @drmklevin @tiffanyandlupus @mybeautyjars @tibetnchina
A painting of Dido Belle wearing Fenty foundation. Circa 1779.
What's the point of before and afters if you're not even going to try to standardize them? I have nothing witty to say, I've been cleaning out storage. I found a Grade 3 project about leaves, in it I wrote "My name is TREEphen"
A very, very old bottle of Vitamin C as ascorbic acid that I pulled out of the Cloverfield hell dimension.
The EU's Scientific Committee on Consumer Safety (SCCS) adopted limits for retinol (Vitamin A) and associated compounds like retinyl acetate, and retinyl palmitate on October 6th, 2016 For the face, hands, and rinse-off products the limit is a concentration of 0.3% For products applied to the whole body the limit is a concentration of 0.05% This is based on estimations of systemic (bloodstream) exposure from retinol and related compounds applied to the skin. For example, with a 0.3% retinol product applied to the face, the SCCS estimated that it could lead to a daily dose of 1661 IU for an adult. That's 1/3rd of the recommended upper limit of 5000 IU per day of Vitamin A The amount of retinol that penetrates through the skin and makes it into the bloodstream is going to vary depending on the concentration and formulation of the product. The SCCS based their estimates on an absorption of 7.7% which is based on prior research. The concern with high levels of systemic Vitamin A is that it can act as a teratogen (causing birth defects) and effects like bone loss and increasing the risk of hip fractures. While it's very unlikely that one would experience systemic side-effects from topically applied retinol and its associated compounds, it's important to be aware of its risks and safe limits. When properly formulated and used in conjunction with sunscreen and smart photoprotection, retinol is a fantastic ingredient with one of the larger collections of scientific literature showing its effectiveness in improving the appearance of the skin and improving photodamage and photoaging. While the EU's safety standards can sometimes tend to be overly restrictive, in the case of retinol - I personally think these limits are fine. Higher amounts of retinol don't necessarily confer more benefits, but they often do produce more side-effects, mainly irritation. Studies on concentrations as low as 0.025% have shown changes in retinoid associated enzyme activity and changes in human skin. In the long-term, it's been shown that low doses of retinoids are often just as effective. Source: doi.org/10.2875/642264
Stages of ascorbic acid decomposition! The left is from the conversion of some of the ascorbic acid to dehydroascorbic acid. Not a lot, mind you, dehydroascorbic acid is coloured whereas ascorbic acid isn't...so even some will cause the solution to change colour Dehydroascorbic acid can be reduced back into ascorbic acid by reducing agents which are found in the body, such as glutathione or some sulfur-containing amino acids. The middle beaker contains ascorbic acid, dehydroascorbic acid, and compounds like erythrulose, furfural, and other compounds. These compounds cannot be converted back to ascorbic acid like dehydroascorbic acid. They are brown, red, and orange tinged and can sometimes stain the skin. At this point, there is still ascorbic acid in the solution, but the other compounds can make it unenjoyable to use. The furthest right beaker is a dilution of the middle beaker to show the colour difference, it's not just a more intense colour, but different compounds altogether. Not every ascorbic acid is going to look the same, because of varying concentrations and other ingredients which may impart colour. But my rule of thumb is: Be mellow if it's yellow, Flush it down if it's orange or brown #vitamincserum #skincare #skincareroutine
Hey bros and nonguys, it's a repost or as I like to call them REPS
Are you taking biotin for your skin and nails? Be aware that biotin supplements can interfere with many lab tests. The FDA is warning and helping to raise awareness of this side-effect, "Biotin in blood or other samples taken from patients who are ingesting high levels of biotin in dietary supplements can cause clinically significant incorrect lab test results. The FDA has seen an increase in the number of reported adverse events, including one death, related to biotin interference with lab tests." Their recommendation for consumers is to talk to their healthcare provider about biotin supplements, and for healthcare professionals to report adverse events to the FDA through the MedWatch report system. I know supplements seem like an effective way to boost your beauty, because who doesn't like the concept of beauty from within? But be aware that these claims are not regulated by the US FDA, nor do they require testing or approval. A study requested by the New York State attorney general found that 4 out of 5 herbal supplements were mislabelled - and these were bought from reputable stores like GNC, Target, Walgreens and Walmart. The US supplement industry is huge, poorly regulated, generally poorly backed by research, and has large profit margins. It's easy to see why it's attractive to someone with a large social media presence *coughSugarBearHaircough*. Don't trust your health and money to something as weak as anecdotal evidence. #hairvitamins #beautyvitamins
Illusions, Michael! A team of researchers from Osaka University set out to find out just how much of an impact eyelash makeup and eyeliner had on the perception of the size of the eyes. The researchers say that eye-enhancing makeup is hugely popular in Japan, but to their knowledge, no scientific study has quantitatively measured its effect - if there is one. To study the effect, the researchers presented a panel with two images of the same face with varying amounts of eye makeup. The panel was then asked to quickly choose which one appeared to have bigger eyes. 22 undergraduate students (presumably from Osaka University) participated in the study. Keep in mind that the presented face was of Japanese ethnicity, so these results may not be applicable to faces and eye makeup of other races and eye shapes. The 5 levels of eyelash makeup were; No eyelash makeup, Mascara only on the upper eyelashes, Mascara on upper and lower eyelashes, Mascara on upper and lower eyelashes as well as false eyelashes on the outer corners, Mascara on upper and lower eyelashes and full false eyelashes The 5 levels of eyeliner makeup were; No eyeliner, Brown eyeliner on the inner upper eyelid, Brown eyeliner on the inner and outer upper eyelid, Brown eyeliner on the upper and lower eyelid, and Black eyeliner on the upper and lower eyelid What they found was pretty interesting, there was a modest (about 6%) increase in perceived eye size when the model was wearing any form of eyelash makeup. The influence on eye size perception of eyeliner was weaker, with only black eyeliner on the upper and lower eyelids having a similar effect even just mascara on the upper eyelashes. As well, interestingly, if the model was wearing some form of eyelash makeup the addition of any amount of eyeliner did not increase the illusion. The researchers also looked at the effect of eyeshadow on perceived eye size, on 6 different faces. While the use of eyeshadow increased perceived eye size by about 5%, there was a variation of the effect between faces. Source: ncbi.nlm.nih.gov/pubmed/26454904 #eyeshadow #mascara #eyeliner #eyelashes #beauty