Why You Should Probably Just Take a Shower

A Blog by Pratishtha Natarajan

Social Media is Maxxing Away

If you are like me, recently social media has been blowing up with all types of maxxing trends. I have stopped to keep up with what the new one is. But one of them really caught my attention: pheromone maxxing.

I wanted to get it right, so I looked up what it is and here is what it is currently been defined as: Pheromone maxxing is a viral social media and dating trend where individuals skip showers, avoid deodorant as proponents believe that washing up and wearing deodorant or cologne blocks the body’s natural “sex pheromones”.

Biology, Psychology, and Maxxing

I do not know about you, but I would much rather smell some nice Le Labo or even a clean Nivea deodorant over “natural musk” of any kind. But, as a former teaching assistant for psychology of human sexuality, I really wanted to deep dive into this trend because I think it just comes from a fundamental misunderstanding of our biology. It is okay we do not know this information. I had a similar feeling of “why wasn’t I taught this?” Social media is incredible at building awareness about things like pheromones. To me so many people wanting to learn more about the connection between their biology and psychology is incredible. But think about what sells on the internet- it is a quick catchy title. Not a nuanced but truthful breakdown.

So, my hope is to give you a good scientific breakdown on pheromones simply put. I am not telling you what to do, but I do want to give you accurate information for how you can make an informed choice.

The TLDR

The TLDR: Pheromones do impact your mating behaviour. But:

  • It is not to the extent that you think it impacts 
  • It can be detected quicker than you realize- you do not need to skip hygiene for its impacts
  • Male-cantered trends miss the complex realities of how perception of pheromones by women changes across their menstrual cycle and if they are on any additional hormones (like birth control)

We will first dive into what pheromones are, then talk about the study this trend is based on. I will then dive into a similarly set up study that reveals what it is like for women and then give you some ways to learn more. Feel free to jump to any part that you are most curious about.

What is a Pheromone Exactly?

A pheromone is a chemical your body secretes. It is like a little flag on top of your skin. What to flags do? They signal something. So, pheromones are simply chemical messengers that signal something to another member of the same species. 
Think of “marking your territory” behaviour we see in animals.

So, how does this work? In most mammals they have a specialised structure called the vomeronasal organ (VNO). This does not go through our nose or nasal pathways but instead can send a signal directly to the emotional centre of our brain (amygdala). So, these messages are super-fast and often perceived as “subconscious” because our nose was not “aware” of the signal.

But here is the catch- in humans, our VNO doesn’t actually function. We as humans, use our nose to pick up on these chemical signals that are mixed with body odour.

Let’s Go Scientific

When we are talking about the smelling attractive pheromones, we are generally talking about the Major Histocompatibility Complex (MHC).

These are genes that build the molecules that help your immune system recognise foreign invaders. These genes are what we call co-dominant. Think of it like blood types: type O is recessive, but A and B are co-dominant. If one parent has blood type A and the other has B, they don’t overpower each other; the kid simply ends up with AB. The exact same is true for your MHC.

How does this translate to scent? MHC molecules bind to small protein fragments in your sweat and skin secretions. Normal bacteria living on your skin then break these secretions down, creating a unique scent signature perfectly tied to your specific MHC type. Since these vary from person to person, almost everyone has a unique MHC profile.

The science shows we are drawn to people with a very different MHC from our own. Why? Because combining two highly varied genetic profiles means your future kids would have a much better, more diverse immune system. (By the way, this is also exactly why your sibling could be sitting on the couch doing absolutely nothing, and they just smell disgusting to you! You have an MHC that is way too similar). But here is a crucial caveat: just because someone is from a different race, or looks vastly different from you, does not automatically mean their MHC is highly compatible with yours.

The Sweaty T-Shirt Study

To really understand how this trend evolved into not showering, we need to look at Claus Wedekind’s 1995 “Sweaty T-shirt” study. In this study, researchers had 44 men wear identical cotton T-shirts for two consecutive days without using any deodorant, cologne, or scented soaps so that 49 women could blindly smell and rate the boxed shirts. The results showed that women overwhelmingly preferred the scent of men whose MHC genetic profiles were the most dissimilar to their own, proving we can subconsciously detect genetic compatibility through body odour.

The two-day requirement in this study is exactly where the modern “pheromone maxxing” hygiene misconception comes from. People read this methodology and assume they need to skip showering for days to build up their natural scent, but they are confusing a clinical research mechanism with a lifestyle rule.

Researchers asked the men to wear the shirts for two consecutive days simply because scientific studies require strict, exaggerated conditions to guarantee a heavily concentrated, easily measurable result on a piece of cotton in a lab setting. They needed to ensure the scent was strong enough to survive being taken off, boxed up, and smelled by someone else later. In the real world, you do not need 48 hours of sweat buildup to project your MHC profile. Your normal skin bacteria are constantly breaking down your natural secretions in real-time. By the time you’ve finished taking transit or sitting through the first hour of a date, your unique scent signature is already fully present and subconsciously doing its job.

Here is the major catch of the original T-shirt study: for women taking oral contraceptives, the preference completely reversed. They actually favoured the scent of men with similar MHC profiles.

This perfectly illustrates why viewing attraction through a strictly male-centric lens misses the complex realities of women, menstruating individuals, and anyone taking hormones.

The Psychological Perspective

To understand this further let’s look at evolutionary psychologist Dr. Martie Haselton’s research. I would highly recommend checking out her book Hormonal, but you can find amazing YouTube videos of her breaking this down. She is an incredible woman, and she was my professor in the first unit I ever took in university, and instantly made me fall in love with evolutionary psychology.

So, let’s look at this study that uses the same methodology but studies the female scent: Women were asked to wear T-shirts during their high-fertility window (around ovulation, days 13-15) and again during their low-fertility luteal phase (days 20-22). Researchers didn’t just guess the timing; they used rigorous luteinizing hormone (LH) tests to verify impending ovulation.

When men later smelled the shirts, the results were striking. The men didn’t just rate the high-fertility scents as significantly more pleasant and attractive: smelling those specific ovulatory shirts caused a measurable spike in the men’s testosterone levels.

Just like the pill reversed MHC preferences in women, birth control that halts ovulation fundamentally alters these dynamic scent signals. This isn’t meant to create fear around contraceptives, but rather to highlight a fascinating piece of mate-choice science brought to the mainstream by researchers like Dr. Haselton. Understanding this simply gives you the context to chat with your doctor or read resources like This Is Your Brain on Birth Control so you can make a fully informed choice about your own body.

Why is Maxxing Pervasive

Now that we understand the actual biology, I want to turn back to why this “maxxing” trend is so pervasive. I wrote this mainly because I deeply empathise with it. I remember being a teenager and being made fun of because I wasn’t perceived as attractive. Honestly, I don’t even think I cared at the time, nor did I actually have a crush on anyone around me. I was far too busy living in my own fictional teen rom-com book fantasy world to be attracted to the actual people in my environment. But the media and my peers constantly reinforced this idea that our fundamental worth is defined by whether or not we are chosen. We were all just misinformed kids leading each other, internalising the lie that our value is tied solely to our attractiveness. Whether it manifests as being a “pick me” or obsessively “looks-maxxing,” the root is the exact same.

I get the temptation to optimise every part of yourself, but as someone who has been through it, you eventually must ask: to what extent, and when does it end? You are not a hamster on a wheel. I once changed everything about myself: my body, my presentation, my habits, and I still wasn’t happy. I am sharing this from a place of love, because I want you to take the immense pressure off yourself.

Everyone Deserves Kindness

If you have a partner who only values, you for your physical traits or an unconscious immune-system check, no matter your gender or age, that is simply not the person for you. You deserve kindness and respect first, far more than you deserve to just be seen as attractive. Start emphasising the wonderful traits, passions, and life experiences that make you the unique, fully realised person you are. Ultimately, that is what makes you genuinely attractive and builds a sustainable connection.

Learning the actual science is a wonderful, empowering way to step off that hamster wheel. I would love for you to explore the research and learn more for yourself. Dr. Martie Haselton’s book Hormonal, Dr. Sarah Hill’s This Is Your Brain on Birth Control, and Claus Wedekind’s original 1995 “Sweaty T-shirt” study are all brilliant places to start. Read the biology, understand how complex and fascinating you already are naturally, and let it set you free from the need to “maxx” anything at all.