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The Aesthetics Edit

Welcome to The Aesthetics Edit™ - our award-winning educational platform at the intersection of art, beauty, medicine and science.


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Medical History, Skincare Science Dr Emmaline Ashley Medical History, Skincare Science Dr Emmaline Ashley

Mad as a Hatter: Mercury, Skin-Lightening, and a Poison That Never Left

Let's start with a phrase you've said a hundred times without thinking about it: "mad as a hatter."

It isn't just a bit of whimsy from Alice in Wonderland. For centuries, hat-makers used mercury to turn animal fur into felt — and breathing its fumes, day after day, in poorly-ventilated workshops slowly poisoned them. The result was a syndrome doctors called erethism: tremors (the "hatter's shakes"), crippling anxiety and irritability, memory loss, personality change. An entire trade was, quite literally, being driven mad by a heavy metal. Mercury is a spectacular poison — it wrecks the kidneys and the nervous system — and we have known this for a very, very long time.

Which makes what I'm about to tell you all the more depressing. Because mercury didn't just disappear when the hat factories shut down. Today, it's in skin-lightening creams — and it's still poisoning people, right now, in 2026.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

The Paraben Panic: How a Health Scare Made Your Skincare Less Safe

"Paraben-free" is one of the most successful marketing phrases in beauty history. It's also a cautionary tale. The campaign against a cheap, well-tested, genuinely safe preservative didn't make your skincare cleaner — it handed you more allergies and more contamination, and charged you extra for the privilege.

Here's how one flimsy study in 2004 rewrote the back of every bottle you own — and why fear is a terrible way to choose skincare.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

Skincare Acids You’ve Never Heard Of

When it comes to skincare, acids have long been the stars of the show—think glycolic, salicylic, and hyaluronic acids. These tried-and-tested ingredients have earned their reputation for addressing common skin concerns such as acne, wrinkles, and dryness.

But did you know there are lesser-known acids that are starting to make their mark in the skincare world? While some have been used for centuries, others are still emerging in research. In this blog, we’ll introduce you to some skincare acids you may have never heard of, discuss their potential benefits, and help you decide whether they should make their way into your routine.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

What is Happening with the EU’s New “Ban” on Retinol?

You might have seen it all over the media recently - the EU is apparently banning retinol?! What is going on?

Well don't panic - retinol isn't disappearing completely! Instead, there are new rules that are going to regulate its percentages in cosmetic, over-the-counter products - and this does not apply to the use of these vitamin A derivatives (prescription retinoids) by healthcare professionals.

So let’s explore what’s happening.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

Island Glow: Skincare in the Caribbean

Hello from the Cayman Islands!

As a cosmetic doctor new to these stunning shores, I've been captivated not only by the breathtaking beauty of the islands, but also by the rich traditions of natural skincare deeply rooted in Caribbean culture.

This stunning, lush landscape offers an abundance of treasures that have been nurturing skin for generations.

Let's dive into some of the time-tested ingredients that contribute to that radiant "island glow."

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

How Do Skincare Ingredients Penetrate into Your Skin?

Attention all skincare enthusiasts! It's time to find out what really goes on with those creams, serums, and lotions that we slather onto our faces every day. Did you know that not all skincare ingredients can penetrate your skin? And that that you don’t always want them to?

Let’s do a little dive into the science behind your skincare.

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Psychology, Skincare Science Dr Emmaline Ashley Psychology, Skincare Science Dr Emmaline Ashley

What are Neurocosmetics?

The concept of neurocosmetics represents a fascinating convergence of neuroscience and skincare, marking a significant shift in how we perceive beauty and wellness. This emerging field, also known as psychodermatology, delves into the intricate relationship between the skin and the nervous system.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

Teenagers and Skincare

Tweens and teenagers are diving headfirst into the skincare scene. They’re flocking to beauty counters with their enthusiasm for elaborate 10-step routines once reserved for adults. But behind the glossy facade of 'Sephora kids' and their viral TikTok skincare sagas lies a problem.

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Medical History Dr Emmaline Ashley Medical History Dr Emmaline Ashley

A Brief History of Sunscreen

Sunscreen has a long and rich history, dating back thousands of years to ancient civilizations. While we have perfected it in the 21st century and innovations are ongoing, protecting your skin has never been a new thing.


Let’s take a whirlwind tour through this fascinating topic!

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

Trending: What is New in the World of Skincare

Skincare is the bedrock of aesthetic medicine - but it is also a field that is filled with conflicting information from influencers, cosmetic chemists, and dermatologists. I have fallen in love with skincare, but I also recognise there’s a constant desire to chase the latest trend. There’s nothing inherently wrong with wanting to know what’s new and exciting in the skincare world, and to that end I wanted to touch on the hottest current trends in skin.

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Skincare Science Dr Emmaline Ashley Skincare Science Dr Emmaline Ashley

Hypochlorous Acid: Skincare’s Secret Weapon

What is all the buzz around hypochlorous acid? 

Find out about this great skincare ingredient - how it's a powerhouse at killing microbes and reducing skin inflammation, all while being extreme gentle and soothing for your skin!

We've known about it for a century, it's something our own white blood cells make to protect our bodies, and it's only in recent years some clever chemists have been able to synthesise the chemical and make it stable enough to use in skincare.

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Skincare Science, Skin Concerns Dr Emmaline Ashley Skincare Science, Skin Concerns Dr Emmaline Ashley

The Best Skincare Ingredients for Sensitive Skin

What are the best skincare ingredients for sensitive skin?

Sensitive skin is all down to an issue with the skin barrier, where your skin is not working effectively to protect you from environmental irritants, and you’re more likely to feel stinging or discomfort when you encounter any insult or challenge to your skin. When it comes to good skincare ingredients, basically it’s all about barrier repair.

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