Easy (5 Minute) DIY Vitamin C Serum Recipe

I’ve mentioned my super-easy DIY vitamin C serum a few times before on social media, and some of you have been asking me for the recipe… but I’ve been so distracted with other things I never got around to posting it until now. I’m sorry! Please forgive me. I hope the results make up for my tardiness! Here’s the video …

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Choosing retinol products: Neutrogena Rapid Wrinkle Repair Regenerating Cream

Neutrogena Rapid Wrinkle Repair Regenerating Cream

This post is sponsored by Neutrogena. Retinol is one of the most popular anti-aging skincare ingredients, but it’s also one of the trickiest when it comes to choosing a product, and one of the ones where looking at the percentage and analysing the INCI list doesn’t quite cut it.  There’s a common perception that drugstore skincare is ineffective, and only …

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Should You Wear Sunscreen Indoors? The Science (with video)

Do you need sunscreen indoors?

Since so many of us are staying indoors more at the moment, I’ve had a lot of people ask me whether they still need to wear sunscreen inside. And I personally haven’t been wearing sunscreen indoors, even as a sunscreen nerd who owns all of the sunscreens. So do you need to wear sunscreen indoors? The truth is… it depends. “Indoors” …

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Ascorbyl Glucoside Vitamin C: Avène A-Oxitive

Avene A-Oxitive

This post is sponsored by Avène. I’ve been really happy to see more vitamin C products hit the marketplace recently. Vitamin C is one of my favourite skincare ingredients – it’s a powerful antioxidant that’s fantastic for soaking up free radical damage, which makes it great for evening out skin tone and reducing fine lines. As someone who’s very prone to …

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Busting Retinoid Skincare Myths (with Video)

Retinoids are vitamin A derivatives, and they’re some of the most popular ingredients in skincare. They’re anti-aging, anti-pigmentation and anti-acne, plus their effectiveness is backed by lots of studies. But like everything else in skincare, there are lots of myths and half-truths about how they work and how you’re meant to use them. Here’s the video on YouTube – keep scrolling for …

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Bakuchiol: Better Than Retinol?

Bakuchiol skincare products

Retinoids (vitamin A derivatives) are by far the most raved-about ingredients by both dermatologists and skincare junkies. They’re absolutely fantastic for treating both acne and the signs of aging skin. Unfortunately, retinoids tend to be irritating for most people, turning your face into a dry peeling mess if you’re too heavy-handed (me, a lot of the time). That’s why there’s a …

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My Routine for Starting on Tretinoin (Retin-A) Cream (with video)

My Routine for Starting on Tretinoin (Retin-A) Cream

I recently started using a prescription tretinoin cream, a generic version of Retin-A. Tretinoin is probably THE most popular and evidence-supported prescription retinoid (vitamin A derivative), and works as an acne treatment, for anti-aging, and a generous handful of other skin issues. I’ve had a lot of requests for advice and tutorials on how to start on retinoids, how to …

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How Do Bubbling Oxygen Masks Work? (with Video)

How Do Bubbling Oxygen Masks Work?

Oxygen masks are products which come out of the bottle as a gel, but start bubbling with oxygen gas after a few seconds on the skin. Brands like Bliss, Peter Thomas Roth, Dr Brandt, Oseque and Sephora have oxygen bubble masks. What do they do, and how did they get the gas into the bottle?

Here’s the video, scroll down for the text version…

How do oxygen masks work?

Oxygen masks work a lot like soda water or soft drinks, where gas is dissolved in water under pressure (carbon dioxide gas, for soda), and is released when the pressure drops (when you open the bottle).

How Do Bubbling Oxygen Masks Work?

Oxygen doesn’t dissolve as well in water, so instead it’s dissolved in chemicals called perfluorocarbons, which are stable, unreactive carbon-based compounds containing fluorine atoms. They can dissolve 20 times more oxygen than water, and have even been investigated for use in artificial blood.

These oxygenated perfluorocarbons are then sealed in a pressurised bottle. When the mask comes out, the oxygen starts fizzing out slowly like the bubbles in soft drink. For some thicker products, a pressurised bottle isn’t required – the thickness of the product itself is enough to hold the oxygen until you massage it out by applying it on the skin.

How Do Bubbling Oxygen Masks Work?

oxygen-mask-IMG_9522

The most commonly used perfluorocarbons in cosmetics are perfluorodecalin and methyl perfluorobutyl ether, but pretty much anything in the ingredients list with “perfluoro” in it will be a perfluorocarbon. Here are the perfluorocarbon ingredients in some popular oxygen masks:

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