Beauty by the Beaker

Welcome to Beauty by the Beaker, the podcast where Sciences Gets a Hot New Makeover! We're two cosmetic chemists who want to reveal what really goes into your favorite products. Join us in the Science Salon! Whether you’re a skincare enthusiast, a curious consumer, or just tired of being told coconut oil cures everything, you’re in the right place. Let's gossip about all things beauty together! Pull up a chair, your appointment's about to start.

There is drama in the soap making community, and we are here to weigh in. This week we a...

Winter is coming, so this week we are reminding you how to keep your hair happy and healthy as the temperatures drop. In this episode, we discuss the effects of winter on skin and hair, emphasizing the importance of adjusting beauty routines to combat dryness and irritation caused by cold weather. We explain the science behind humidity, skin structure, and the necessity of maintaining hydration through effective skincare products. The conversation also highlights the significance of understanding how environmental changes impact skin health and offers practical tips for winter skincare routines. Join us as we discuss essential skincare and...

This week we are feeling extra spooky, because it’s nearly Halloween! So we wanted to give you a sneaky little peak into the scariest things we have heard as cosmetic chemists, and we promise its more than just unpreserved cosmetics (Of course its still a little bit of that, because they are really scary). 

Sadie and Nat are sharing some of the times that things didn’t go as planned while working in the lab. Maybe they were honest mistakes, but we can’t prove that these events weren’t supernatural. We discuss spilling banned ingredients, broken gl...

Fungi are everywhere, and I mean EVERYWHERE. And they tend to be pretty misunderstood.  Yeast, mold, and mushrooms are not plants, not bacteria, and not just spooky Halloween germs. They are a completely different branch of life, and they play a much bigger role in your environment, your skin, and your cosmetics than you probably realize.

This week we break down what it means to be a fungus in a way that finally makes sense, from the cell-wall secret ingredient that separates them from bacteria and plants to the digestive reason they can be both helpful and h...

Have you heard of Zombie Cells? Senescent cells are real, but the skincare claims built around them are often way more terrifying than the science supports. This week in the Science Salon, Sadie and Nat unpack the spooky truth behind these dormant skin cells. 

The scariest thing might be all the new vocab words. This week we discuss telomeres and apoptosis and explain how UV damage and stress fit into the story. You’ll hear how certain ingredients are being sold as senolytics, and why the jump from petri dish results to real-world skin benefits is a muc...

We are kicking off Spooky Season the scariest way we know how! Beauty misinformation is more than annoying, it shapes what people buy, believe, and do with their skin. In this episode, Sadie and Nat break down some of the most persistent beauty myths, from chemical sunscreen fears and “reef-safe” claims to oral sunscreen supplements, preservative misinformation, and the ways AI and sensational headlines can distort scientific evidence.The hosts recap the Truth and Beauty eSummit from The Eco Well, exploring how emotional marketing, cherry-picked studies, and the attention economy help beauty misinformation spread. They discuss why chemical sunscreens are...

This week is all about scalp health. Your itchy, flaky scalp might not be dandruff, and using the wrong treatment could make it worse. In this episode of Beauty by the Beaker, cosmetic chemists Sadie and Natalie explain the difference between dry scalp, dandruff, seborrheic dermatitis, and psoriasis, plus how to choose a smarter next step.

Learn how scalp oil, aka sebum, and the yeast Malassezia are connected to dandruff and why itching can start before flakes appear. Not all scalp issues are microbial, and this week we discuss how clues like flake texture, redness, your environment...

Every once in a while we see pH marketed on labels, but most people have no idea what it actually means - and that confusion is exactly why it has the opportunity to become such a powerful buzzword. If you’ve ever wondered whether “pH balanced” skincare or hair care is worth paying more for, this episode breaks down the science in a way that finally makes sense.

This week we are discussing the power of Hydrogen, and we are doing it in some very conceptual and possibly less than scientific ways. We explain what the pH is, wh...

When it comes to curls there is a lot of misinformation, and this week we are setting the record straight. Natalie and Sadie, cosmetic formulation chemists are covering the 3 main misconceptions when it comes to curly hair, and explaining why you might not be treating your hair right. We break down why curl type is a weak predictor of what your hair actually needs, why “wash less” is not universal, and why products do not magically change your curl pattern.

Starting with the origins of curl typing, including its uncomfortable ties to racial classification and the later Andr...

 It’s the first official episode of season 2, and we are going to be trying something a little bit different. Mostly because we want to talk about beauty science you are actually interested in, but also because our lives have been a bit crazy, and we needed another week of chatting to give us more time for research. Since we want to give you the most accurate and easy to understand information we possibly can, we typically have to spend a LOT of time researching for each episode, but we only want to do that for topics you have que...

Happy Birthday BXB!!! This week we are celebrating 1 year of the podcast by reflecting on some of the epic highs and lows of the past, and setting some new expectations for the future. We discuss the unexpected struggles of co-hosting a beauty science podcast, and the desire to stop the spread of misinformation while still appealing to a large audience… which we unfortunately haven’t done yet after a year… but we aren’t ready to stop trying! And although small, we talk about how positive the feedback on the show has been, especially from the people we were most afr...

Summer isn’t over yet! We have stressed the importance of sunscreen, but how does the sun affect your hair? In this episode we are breaking down the science of UV damage, visible light, melanin, and why some hair fades or weakens faster in the sun. Have you ever wondered if your hair needs sunscreen? Tune in, this episode is for you.

Welcome to Beauty by the Beaker, the podcast where Sciences Gets a Hot New Makeover! We're two cosmetic chemists who want to reveal what really goes into your favorite products. Join us in...

It’s about time we give you another peak into our vanity shelves!

This week we are spilling the details on our favorite skin and hair care products under $30 (well almost, we need to make one exception for Sadie). As cosmetic formulation chemists we have tried a lot of different products, and are very familiar with all types of ingredients.

Join us in the Science Salon for 10 products we are currently obsessed with. And we know how hard it can be to trust ‘influencers’ but don’t worry, we are scientists. We have no affiliation with any...

Are you ready for perfect hair?

Good, because this episode is your scientifically proven guide to perfect hair! .. well… sort of.

As it turns out, hair isn’t super vital, and for that reason, there hasn’t been a very strong push for rigorous scientific evaluation. But today we have the closest thing we are going to get to a hair expert, Sadie!

Sadie performs microscopic hair analysis, and writes up a customized report, detailing everything you could need to know about your hair. She has looked at thousands of hairs under a micros...

What ingredients are in your lash serum? And is it really worth the risk? 

Long, luscious lashes are a beauty goal for many, but do you really know what's happening when you use those popular eyelash serums? This week we are diving into an unlikely lash lengthener that was discovered while treating glaucoma. We are telling you everything you need to know about prostaglandin analogs. These ingredients not only stimulate lash growth but can also cause side effects like eye color darkening and sunken under-eye fat. In this eye-opening episode, cosmetic chemists Natalie and Sadie explain the s...

Exosomes are rapidly becoming the hottest buzzword in skincare, but what do we really know about their power? Are they the regenerative breakthrough they're made out to be, or simply a clever marketing tactic? If you're curious about whether products claiming to harness these tiny cellular messengers are worth your hard-earned money, this episode is for you!

As cosmetic chemists, we cut through the hype to explain what exosomes are, and more importantly, what they aren’t. We are breaking down the science behind these cell signaling vesicles, why their source (human, plant, bacteria, or fungus) matters im...

Welcome back to the Science Salon! You might claim to be a K-beauty fan, but did you know that it’s a result of Korea’s strategic comeback after the 1997 Asian financial crisis? And was Missha the first Ordinary when it comes to simple and effective, no-frills skincare? This week is part 2 of our K Beauty series, and this week we are discussing all things Hallyu, or the Korean Wave.

We break down how Korean beauty became a worldwide phenomenon, why the 10-step Korean skincare routine took off, and what people often get wrong about K-beauty trends (espe...

You can’t be a skincare fan and not know about K-Beauty. Today we are talking about the history behind Korea’s astonishing rise to global beauty powerhouse. It’s more than just cosmetic, it’s a story of resilience, strategy, and innovation.

Most Americans overlook Korea’s deep history, but a centuries-old story of oppression, evolution, and social shifts laid the groundwork for today’s K-beauty craze. We are going all the way back to the beginning, and looking at how ancient legends and the strict standards of Confucianism laid the groundwork for modern beauty culture. 

Welcome...

We bet you have heard of Ozempic, but did you know it was first discovered in Gila Monster venom? This week we are talking about weight loss drugs, and the shocking side effects they can cause. If you're curious about the science, the beauty industry's profit-driven response, and why these weight-loss drugs might be doing more harm than good, this episode is your essential guide.

We talk about the mechanism of action, and how it's used for managing blood sugar and suppressing appetite. We’re talking all about how and why these drugs work, and why their po...

This week we are diving deep into Accutane, also known as isotretinoin. This is one of the most talked about acne treatments in dermatology. If you’ve ever wondered how Accutane works, why skin can get worse before it gets better, what the purge phase feels like, or whether Accutane is actually safe, this episode breaks it all down in a science-backed, easy-to-understand way.

We cover the accidental discovery of Accutane, the history behind isotretinoin, how it targets sebaceous glands and oil production, and why it’s often considered a last-resort treatment for severe or stubborn acne. We a...

EMERGENCY SUNSCREEN UPDATE! 

The FDA just approved the first UV filter in over 20 years! Join us for breaking news in US sunscreens. This ingredient promises to be the safest and most effective filter the United States Market has ever seen, but what does that actually mean as a consumer? 

This week we are telling you EVERYTHING you need to know about Bemotrizinol, BEMT, bis-ethylhexyloxyphenol methoxyphenyl triazine (Which is actually still an INCI name, not IUPAC) Tinosorb S, or Parsol SHIELD. Whatever you decide to call it, we are here to break down what it means fo...

0:00 - Introduction to Looksmaxxing 

Discussion on the concept and its societal implications.

15:18 - A Never Ending Pursuit For Perfection

How looksmaxxing has roots in historical beauty practices.

19:06 - Modern Trends and Influences 

The role of social media and influencers in popularizing looksmaxxing.

21:35 - Gender Perspectives 

Differences in beauty standards and expectations for men and women.

25:14 - Psychological and Social Impacts

How looksmaxxing affects self-esteem and social interactions.

28:31 - Ethical Considerations 

The dangers and ethical concerns surrounding extreme beau...

Is there a line between makeup and skincare? If there is, it's extremely blurry, and understanding the science behind it can change the way you approach your beauty routine. In this eye-opening episode, cosmetic chemists Sadie and Natalie peel back the layers of what truly goes into your favorite complexion products. from BB creams with origins in 1960s Germany to the skin tints that are still very popular today. Discover the surprising history of BB and CC creams and why they’re more than just beauty trends, but a reflection of industry shifts, inclusivity challenges, and innovative formulations.

...

We are unlocking the secret differences between makeup and skincare formulations and discover why most companies excel in one, but not both. 

Cosmetic chemists Sadie and Natalie pull back the curtain on how the beauty industry structures its product development, from the complex web of outsourcing to the specialized labs that craft your favorite products. They explore the vast “umbrella” of cosmetics, breaking down why makeup (color cosmetics) require such painstaking precision, and how formulating a lipstick or foundation is a whole different ballgame from creating a serum or night cream. You'll learn about the intricacies of color...

We are cosmetic chemists, and today we are uncovering secrets behind hair care myths, product hype, and what science actually says about styling and cleansing routines in this lively Q&A. From horse shampoos to curl conditioners, discover whether your favorite products are worth the hype, and learn how to optimize your routine, even in hard water or with stubborn color fades.Ever wondered if rinsing with cold water truly seals the cuticle or if hot water strips your hair? Want to know why curly hair responds differently to shampoos or whether you should really avoid sulfate shampoos for...

Are you brushing your teeth with explosives? No, not really, but your cosmetics could still set off alarms going through TSA, and not just because they are bigger than 3.4oz. In this episode we are diving into a cosmetic ingredient that might help with tooth sensitivity, but it might also get you stuck at the airport security checkpoint having your luggage swabbed. Potassium Nitrate, KNO3. In this episode we are diving into some of the primary uses of Potassium Nitrate. We are covering fertilizers, fireworks and filet mignon (meat preservation), and how the oxygen present in nitrates makes it...

Do you know truth behind terms like "non-comedogenic"? Most skincare claims are based on estimates and outdated science, 

In this eye-opening episode, cosmetic chemists Sadie and Natalie reveal the hidden flaws in skincare labeling, and why "non-comedogenic" means little without proper evidence, and how marketing exploits consumer fears.

If you have shopped for cosmetics you have probably come across the term non comedogenic, but what does that really mean? In this episode we are talking all about what it actually takes to be permitted to legally use the words non comedogenic on your product, shockingly i...

Most people believe certain ingredients or products cause acne, but the truth is far more complex, and surprisingly outdated. This week we are diving into the real science behind the popular non-comedogenic claim that’s been shaping skincare for over 50 years. This episode unpacks the origins of the Rabbit Ear Study, revealing why its findings are not super reliable. If you’ve ever read a label claiming “non-comedogenic” and wondered what it really means, this is your essential guide to understanding the truth about acne-causing ingredients, and spoiler: it's not what you think.

Sadie and Natalie, cosmetic chemists...

How do we know which skincare ingredients actually work? Do cosmetics even work? Or are over the counter topical drugs the only way to reliably treat problem skin? In this discussion episode, hosts Natalie and Sadie reveal why some treatments are prescription-only while others are OTC, and why this matters more than you think. This week we are continuing our retinol conversation, and also revisiting some of our other recent topics like PDRN and Reale Actives, and explaining why cosmetic brands have no incentive to do good scientific studies. 

Discover how the FDA's outdated definitions make it t...

Retinoids, the skincare ingredient powerhouse that everyone talks about but few truly understand. Whether you're battling acne, fine lines, or just trying to maintain youthful skin, this week we are revealing the science-backed secrets behind how retinoids work and how to incorporate them safely into your routine. Discover why some forms are more effective, how your skin metabolizes each type, and why patience is the ultimate key to getting real results.

We delve into the different types of retinoids, from Retinyl Esters, Retinol, Retinal and Retinoic Acid, we are breaking down their conversion processes and potency levels...

PDRN is the trending skincare ingredient derived from salmon sperm that promises rapid skin repair. Is all the hype justified, or is it just another trendy ingredient with little scientific backing? Before you decide to spend your money on PDRN, this episode is a must-listen.We are Sadie and Natalie, two cosmetic chemists who love to chat. This week we are pulling back the curtain on PDRN’s fishy origins. You’ll discover the biggest hurdle when formulating with this ingredient, size limitations of molecules, and whether it truly penetrates the skin or just sits on the surface. We are...

We are two cosmetic chemists, and in this mini episode we are chatting all about one particular TikTok it-girl, and her highly anticipated new skincare line. Of course we are going to be addressing all the controversy. There is at least one thing that Sadie, Natalie, and Alix all have in common, and thats a history with Isotretinoin (Accutaine), and we are diving into the ethics of creating and marketing cosmetics aimed at acne prone skin while not being transparent about your how you achieved your own results. 

But beyond perfect skin, we are talking about how b...

This week we are jumping into a highly requested topic - synthetic food dyes. But in order to really answer the question - Do we need to fear Red 40 - we first need to go over some of the history of Dyes. It turns out humans love colors, and we have for as long as we have been around. We talk about the first synthetic dye, mauvine, which was made on accident when an 18 year old chemist was trying to make medicine out of coal tar. We also talk about the first synthetic pigment, which was a much earlier...

Is the guy in the logo real? In our first solo mini episode, we are going to deep dive into the story behind the brand, Burt's Bees. Burt Shavitz wasn't looking for fame, so how did he go from a self described loner to arguably the most famous bee keeper in the world? It started when a 60s hippie left his life as a street photographer for Time-Life in Manhattan. Burt describes getting his hives as divine intervention, and started selling honey from his truck. In another turn of fate, he met a woman who would take his sweet...

This week we are putting an end to greenwashing in cosmetics! (If only it was that easy) 

Welcome to Beauty by the Beaker, the podcast where Sciences Gets a Hot New Makeover! We're two cosmetic chemists who want to reveal what really goes into your favorite products, and we aren't afraid to bust some myths while doing it. Whether you’re a skincare enthusiast, a curious consumer, or just tired of being told coconut oil cures everything, you’re in the right place. Let's gossip about all things beauty together! Pull up a chair, your appointment's about to st...

Welcome back to another Wednesday! This week we are giggling about gold. This beautiful metal has been popular throughout all of history, but why is that? In this episode we are explaining the science behind this unique material. Its variety of uses range from traditional medicine to jewelry, but does it have potential to be a skincare miracle worker? We are discussing nanoparticles, and how gold can be complexed with beneficial active ingredients - but not all that glitters is gold. Pull up a chair and laugh along with us. 

Welcome to Beauty by the Beaker, the p...

We have spent all month talking about smells, but how do perfumes even work? And what makes them all smell so different? In this week's episode we are explaining some perfume basics, like what is the difference between cologne and an eau de toilette? We are talking about fragrance ingredients, and the important roles that they play in finished perfumes. Plus, we are telling you what perfume bottles you are likely to find on each of our shelves, and the scent notes that are inside. Of course, since Natalie and Sadie don’t necessarily sniff nose-to-nose, we end with a...

This week we are back in the Salon to talk about a special type of chemical that MIGHT help you find your Valentine, Pheromones! Which as you may have guessed, are linked to some debatable science. We are discussing some well known examples of animals who use pheromones, and then talking about why humans probably don't. Even if we don’t use our noses to find love, we are talking all about how our sense of smell influences our decision making. 

Welcome to Beauty by the Beaker, the podcast where Sciences Gets a Hot New Makeover! We're two...

Chances are, you probably have some sort of fragrance in your going out routine, whether its a scented lotion, body spray, deodorant, or perfume. For many of us, the way we smell is in some way tied to our identity, but this isn't new. Humans have been using fragrance oils and perfumes for basically as long as we have been around. Today we are diving into the weird history of perfume. From Egyptian head cones to Chanel no. 5 and Creed Aventus, we are learning how scent has shaped our society.

Welcome to Beauty by...

Welcome back! This week is a fragrance overview to get you ready for some stinky subjects! This week, hosts Sadie and Natalie are talking about fragrances in cosmetics! Sadie tells you what a fragrance is, how we smell them, and some of your burning questions regarding fragrance safety. Learn about allergies, how they develop, and the dangers of misusing essential oils. If you have ever wondered if you need to avoid scented products, this episode is for you!

Welcome to Beauty by the Beaker, the podcast where science gets a hot new makeover! We're...