Working on a new face serum! It contains performative feminism extract, good feelings, and incluuuusiv! Also lots of water.
Working on a new face serum! It contains performative feminism extract, good feelings, and incluuuusiv! Also lots of water.
BUT PROM IS TOMORROW?!
Don't be a Joey. Get the full story by binging that link in Chanandler Biong.
One of my favourite packaging innovations. This is a self-sealing bag with a pump. It has very low air permeation and prevents backflow - so no retro-contamination! The product only comes out when the pump is pressed, despite no traditional nozzle system. As an added bonus, all the materials are easily recyclable!
Been dealing with packaging a little tube much lately
I came here to sit on my ass and chew whatever abomination this is that Whole Foods calls vegan cheese substitute. And I'm all out of whatever abomination this is that Whole Foods calls vegan cheese substitute
This dispenser has a self cleaning nozzle! It has a few benefits, it reduces the air exposure of the product inside the discharging tube (not completely, but less), reduces potential contamination from backflow, water, and fingers...and it also gets rid of that dried up booger thing that forms when the product dries up! No more boogers!
When we mix in a moisturizer or foundation to an amount of sunscreen - we dilute it, reducing the concentration of sunscreen filters and possibly affecting their distribution. Research shows that how much sunscreen we apply affects how much photoprotection we receive The Beer-Lambert Law (A =εcl) shows us the relation between the attenuation of light between a physical material, based on its thickness (path of light) and concentration. The thickness of a sunscreen's film and the concentration of its sunscreen filters will affect its absorbance We've probably all experienced this, especially if you've mixed a foundation with a moisturizer to make it sheerer. Fewer pigments mean less absorbance leading to less coverage. The same principle is at work with sunscreens - only we can't see the wavelengths of light that sunscreens absorb Diluting a sunscreen and plotting its absorbance based on the concentration of sunscreen is a common high school or undergraduate lab In an experiment, researchers diluted a sunscreen with its own vehicle (the sunscreen formula without the sunscreen filters) and measured its effect on in vitro SPF Diluting the sunscreen by half decreased an in vitro SPF 40 to an SPF 15, and an SPF 8 to an SPF 5 Their results didn't strictly follow what we would expect from the Beer-Lambert Law (a log-linear relationship) but did show that dilution decreased in vitro SPF - which agrees with human research that shows that less sunscreen applied means less photoprotection. In comparing their in vitro data to human data the researchers point out that their in vitro SPF overpredicted and the real SPF was much lower In vitro SPF won't always match in vivo SPF, especially if the sunscreen includes antioxidants and anti-inflammatories. The biological effect captured in clinical SPF tests won't be seen in tests done like this one As a consumer, it's your choice whether you want to mix your sunscreen with other products or not. But you should understand that protection and other aspects like water resistance can be affected Source: K. Kelley, In vitro sun protection factor evaluation of sunscreen products, J. Soc. Cosmet. Chem., 44, 139-151 (1993)
You've probably seen the outrage and anger directed towards certain brand founders who implied that they weren't going to be vaccinating their children. I encourage you to channel that energy into supporting organizations like Gavi; whose aim is to reduce the disparity in vaccine access between countries and within countries. This photo taken in 2015 is of Tabu Kitmonga Kiparu, a woman of Tanzania, a woman who is receiving treatment for cervical cancer. She is just one reminder that there are real lives behind the statistics. Current estimates suggest that by 2035, cervical cancer is expected to cause 416,000 women to die every year, overtaking even childbirth as the number one killer of women worldwide. In Ontario, the HPV vaccine is covered by the government for students in Grade 7 and other at-risk groups. Certain types of HPV can cause cervical cancer for women, and anal and penile cancer in men. The HPV vaccine is extremely effective in reducing infections that can lead to these types of cancers. It's estimated that up to 70% of cervical cancer cases can be prevented with HPV vaccination. Through Gavi's support, the government of Tanzania has been able to offer HPV vaccines as part of its routine immunisation programme. Over 600,000 young women have already received the treatment as of April 18, 2018. The cost of administering the vaccine in Tanzania is $15 USD and could reduce or prevent the need for cervical cancer treatment - which costs about $2000 USD. In 2017, a Tanzanian government report estimated that only 30 per cent of the people can access health insurance. Sadly, according to a recent analysis of 2012 data, "most Tanzanian women with cervical cancer are diagnosed at late stages when curative treatments are no longer possible" I encourage you to visit Gavi.org, Amref.org, and Unicef.org/immunization, read their stories, and donate if it is something that you are passionate about supporting. Source: http://doi.org/10.1155/2018/2458232
To put that into perspective, textiles contribute about 5.4x more pollution and vehicle tire dust 7.7x more. Removing plastic microbeads from cosmetics is just one important step in a long journey. Source: http://www.eunomia.co.uk/reports-tools/plastics-in-the-marine-environment/
Are you using retinoids in the hopes of improving atrophic or sunken scarring? Newer research from Galderma has shown that Adapalene at 0.3% is effective at improving the appearance of atrophic acne scars. Click that link in bio for more info and a realistic look at what improvements you might expect
Is the SPF test a global standard? Not exactly. Over 60 countries now accept the ISO 24444:2010 SPF Test, but many countries still also accept their own standards. The United States has its own method for SPF testing, which Canada and Mexico accept along with the ISO 24444:2010 test. Countries and regions that accept the ISO 24444:2010 standards: Australia, New Zealand, European Union, UK, India, Japan, MERCOSUR, Canada, ASEAN, South Africa, Mexico, Chile, Russia, Israel, India, Russia, and Japan. According to regulatory experts Giulio Pirotta and Eurofins, Taiwan and South Korea also accept ISO 24444:2010. It's important to understand that despite differing standards, many are performed similarly. The US SPF test is based on an older version of the ISO SPF Test and is very similar to the current one. The South Korea and China standards are also very similar to ISO standard. All the standards use 2 mg/cm2 as the density of sunscreen applied and prescribe that participants be of "light" skin (so sunburn can be observed) or Fitzpatrick skin phototypes I, II, or III. There is some variation in the number of participants, but all include at least 10 participants. The UV spectrum is divided into UVB (290 nm to 320 nm) and UVA (320 nm to 400 nm). There is some variation in the UV source, but all the tests compare the ratio of UV exposure it takes for sunburn on unprotected vs protected skin. Based on the similarity, it's unlikely to be much variation between SPF tests, but I have not seen any comparative studies. It's important to understand that SPF is an estimate of the protection against erythema for a population. For example, if the result of an ISO 24444:2010 SPF test is 10, it doesn't mean all the participants experienced 10 times more UV exposure before sunburn - but on average (within a limited range of deviation) they did. ISO 24444:2010 is currently being updated with one of the suggested changes being the removal of the use of the Fitzpatrick skin phototype and moving to a measurement of skin colour by spectrophotometer. Sources: "An overview of sunscreen regulations in the world" by Giulio Pirotta, Eurofins, ISO 24444:2010, and ISO 26369:2009
Relative molecular mass or molecular weight is dimensionless but is often expressed as absolute molecular mass in the unit Daltons in cosmetic chemistry. 1 Dalton is equal to the mass of 1/12 of the Carbon-12 isotope. You may have seen molecular weight when looking at the 500 Dalton Rule of Skin Penetration or in macromolecules like the hyaluronic acid polymer. The 500 Dalton Rule of Skin Penetration was put forward by Jan Dos and Marcus Meinardi, who observed that most topical drugs that can penetrate through the stratum corneum are below 500 Daltons. This is meant as a general guideline and not an absolute rule as it may come across. For example in their own observations, they point out Neomycin Sulphate which has an absolute molecular mass of 712 Daltons. Hyaluronic acid is a polymer, meaning it is a macromolecule made up of repeating smaller units. These smaller units themselves are a disaccharide made up of glucuronic acid and acetyl glucosamine. As you may imagine, the molecular weight of a particular hyaluronic acid polymer changes depending on how many repetitions of the disaccharide units that are present. In organisms, hyaluronic acid polymers have been found ranging in size from 5,000 Daltons to 200,000,000 Daltons (found in the parotid saliva of humans). In human skin hyaluronic acid is often found with sizes between 600 - 1000 kDa or 600,000 - 1,000,000 Daltons. In cosmetics, hyaluronic acid is often divided into arbitrary groups: High molecular weight and low molecular weight. One manufacturer, for example, produces a hyaluronic acid polymer labelled as low molecular weight which has an average absolute molecular mass of 20 - 50 kDa or 20,000 to 50,000 Daltons. They also produce another grade of hyaluronic acid polymer that has an average absolute molecular mass between 550 - 1,000 kDa or 550,000 - 1,000,000 Daltons. Experiments using Raman spectroscopy have shown that hyaluronic acid polymers with sizes ranging between 20 - 300 kDa or 20,000 - 300,000 Daltons have been able to penetrate past the stratum corneum of human skin, another example of an exception to the 500 Dalton Rule of Skin Penetration.
When your new mascara looks amazing, but smudges.
Anti-pollution or anti-particulate matter has become a huge buzzword in cosmetics. Pollution and particulate matter have been linked to many negative health effects (mainly cardiovascular) and while the link to skin health and acceleration of ageing are logical...does the data support it? There have a been a few correlational studies that have shown that people living in areas with higher levels of pollution exhibit more signs of oxidative stress in skin lipids and some have even correlated it with increased wrinkling. But what's the mechanism and can particulate matter even penetrate the skin? A group of researchers from Seoul used an in vivo mouse and in vitro keratinocyte model to study this. First was the collection of particulate matter from the air. To do this they set up a vinyl tarp on a rooftop near a busy intersection to collect dust. The particulate matter was then purified and separated to be used in the experiment. The majority of the particles ranged from 200 to 300 nm. Particulates found included: Naphthalene, biphenyl, acenaphthylene, acenaphthene, fluorene, dibenzothiophene, and 28 others identified. For the in vitro portion of the experiment, cell cultures of human primary keratinocytes were performed with varying concentrations of the particulate matter. The cells absorbed the particulate matter, and the researchers found a concentration-dependent increase of inflammatory cytokine IL-8 and collagenase MMP-1. They also found that the addition of an antioxidant, n-acetyl cysteine, was able to suppress this effect. In the in vivo portion of the experiment, the researchers used mice that did not produce melanin and divided them into two skin conditions: One with their skin intact, and another with barrier-damaged skin. To damage the skin barrier they stripped the skin 10 times with tape to remove layers of the stratum corneum. The particulate matter was applied 10 times over 2 weeks and included a skin penetration enhancer (DMSO). // Continued in comments
Drinking 8 glasses of water will restore the youthful glow to your skin, so much so that you'll turn into a dewy beauty monster. Drinking water will absolve you of the fact that sometimes you're a bad person. If you drink water, people will engage on your social media more, they'll actually read those funny captions you put so much time on and genuinely laugh, they'll think about you when their screens are off. Drinking water will erase your embarrassing teenage years and replace those memories with a Disney sitcom. Drinking water will make you feel like an accomplished health guru, floating over a field of organic Ãmárånth, also known as Foreigner's Wheat. Is any of this true? Find out by diving into that link in bio, like a tiny, disgusting, faeces covered fly diving into a cooling refreshing glass of some jerk's $18 patio drink. Also, that's milk.
Good morning. In less than an hour, aircraft from here will join others from around the world. And you will be launching the largest aerial battle in this history of mankind. Mankind -- that word should have new meaning for all of us today. We can't be consumed by our petty differences anymore. We will be united in our common interests. Perhaps its fate that today is the 4th of July, and you will once again be fighting for our freedom, not from tyranny, oppression, or persecution -- but from annihilation. We're fighting for our right to live, to exist. And should we win the day, the 4th of July will no longer be known as an American holiday, but as the day when the world declared in one voice "We will not go quietly into the night! We will not vanish without a fight! We're going to live on! We're going to survive!