Endocrine disruptors in cosmetics: the ingredients that may affect your hormones
There is something almost nobody explained to us properly.
We worry about what we eat. We check if a product contains sugar, additives, organic ingredients, strange names or anything that does not really deserve a place in our pantry.
But then we get home, open the bathroom cabinet and apply a cream, deodorant, perfume, shampoo, makeup, sunscreen or body lotion to our skin without reading anything at all.
And here comes the uncomfortable question:
Do you know which ingredients in your cosmetics may be affecting your hormonal system?
This is not about creating fear. It is about understanding that the skin is not a wall. The skin is a living organ. And many of the substances we apply every day can come into contact with our body.
The problem is usually not one cream used once. The problem is the total amount.
Every day. For years. In different products. On different areas of the body. And often without knowing what we are applying.
What are endocrine disruptors?
Endocrine disruptors are chemical substances that can interfere with the natural functioning of our hormones.
They may mimic a hormone, block its action or alter the way the body produces, transports, uses or eliminates it.
This matters because hormones regulate key functions such as metabolism, fertility, the menstrual cycle, thyroid function, sleep, mood, energy and development.
When we talk about endocrine disruptors in cosmetics, we are not talking about a trend or a strange internet theory. We are talking about a topic that has been studied by scientific and health organisations for years.
This is not about living in fear. It is about learning to choose better.
Why they may be found in conventional beauty products
Many ingredients are used in cosmetics because they have a specific function.
Some preserve the product so it does not spoil. Others make it smell better. Others create a more pleasant texture. Others help a cream spread more easily, make makeup last longer or allow a sunscreen to filter UV radiation.
The problem appears when some of these ingredients are suspected or known to have endocrine activity.
In other words, when they do not only affect the texture, smell or preservation of the product, but may also interact with our hormonal system.
Ingredients you should learn to recognise
1. Parabens
Parabens are used as preservatives in many cosmetic products. Their function is to prevent the growth of microorganisms and extend the shelf life of the product.
On the label, they may appear as:
- Methylparaben
- Ethylparaben
- Propylparaben
- Butylparaben
- Isobutylparaben
The most debated ones are usually longer-chain parabens, such as propylparaben and butylparaben, because of their possible estrogenic activity.
Does this mean that if you use one product with parabens something will automatically happen to you?
No.
But if every day you use face cream, body cream, makeup, shampoo, shower gel, deodorant and intimate care products with these preservatives, the question changes.
How much exposure am I accumulating without realising it?
2. Phthalates
Phthalates have been used in some products to fix fragrances, improve textures or make certain finishes more flexible.
The problem is that they do not always clearly appear on the label with the word “phthalate”.
Sometimes they may be part of perfume or fragrance formulas, which appear in the INCI simply as:
- Parfum
- Fragrance
If a product says “parfum”, it does not automatically mean it is dangerous. But it does mean that the fragrance formula is not always completely transparent for the consumer.
That is why, if you want to reduce exposure, especially in products that stay on the skin for many hours, such as perfumes, body creams, deodorants or makeup, it makes sense to prioritise more transparent brands.
3. Triclosan and triclocarban
Triclosan and triclocarban have been used as antimicrobial ingredients in personal care products.
For years, they appeared in soaps, toothpastes, deodorants and other antibacterial products.
On the label, you may find them as:
- Triclosan
- Triclocarban
Today they are much more regulated, but they are still ingredients worth recognising.
This is not an obsession of a few “natural living” people. It is a real cosmetic safety issue.
4. Controversial chemical UV filters
Some chemical UV filters have also been studied for their possible endocrine activity.
Among the best-known ones, you may find:
- Benzophenone-3
- Oxybenzone
- Octinoxate
- Ethylhexyl Methoxycinnamate
- Homosalate
This does not mean you should stop using sunscreen.
Quite the opposite.
Sun protection is still important. But if you use sunscreen every day, especially on the face, neck, chest or on children, it makes sense to choose well-formulated products without unnecessary ingredients.
The question is not “sunscreen yes or no”.
The question is:
Which sunscreen am I using every day?
5. PFAS in some makeup products
PFAS are often known as “forever chemicals” because they can persist for a long time in the environment and accumulate.
In cosmetics, they may appear in some waterproof products, long-lasting makeup, mascaras, eyeliners or lip products.
On the label, they may appear with words such as:
- PTFE
- Perfluoro
- Polyfluoro
- Perfluorononyl dimethicone
This does not mean that all cosmetics are dangerous. But it does confirm that reading labels makes sense.
How to read a cosmetic label in 30 seconds
You do not need to be a chemist.
You do not need to understand every ingredient.
You only need to learn how to detect warning signs.
Step 1: look for words ending in “paraben”
If you see methylparaben, propylparaben, butylparaben or isobutylparaben, you already know the product contains parabens.
Step 2: check for “triclosan” or “triclocarban”
Especially in antibacterial products, toothpastes, deodorants or hygiene products.
Step 3: review the UV filters
If it is a sunscreen or a cream with SPF, look for names such as benzophenone-3, oxybenzone, octinoxate, ethylhexyl methoxycinnamate or homosalate.
Step 4: be careful with “parfum” if it appears high on the list
If “parfum” or “fragrance” appears high on the ingredient list, it means it has a significant presence in the formula.
It is not always bad, but if you have sensitive skin, hormonal issues or simply want to reduce unnecessary exposure, it is better to look for more transparent formulas.
Step 5: look for “perfluoro”, “polyfluoro” or “PTFE”
Especially in waterproof makeup, lip products, long-lasting foundations, eyeliners or mascaras.
Start with the products that stay on your skin
Not all cosmetics have the same potential impact.
A shampoo that you rinse off after 30 seconds is not the same as a body cream that stays on your skin for hours.
If you want to make a smart change, start with leave-on products.
- Deodorant
- Face cream
- Body cream
- Daily sunscreen
- Makeup
- Perfume
- Intimate care products
- Products for babies or children
These are the ones that make the most sense to review first.
Not because the rest does not matter.
But because, if you want to reduce exposure, you should start with what stays in contact with your body the longest.
Natural, organic and toxin-free cosmetics: what to really look for
Be careful, because there is also a lot of marketing here.
If a product says “natural”, it does not automatically mean it is perfect.
If it says “clean beauty”, it does not necessarily mean it is truly clean.
If it has a green leaf on the packaging, it does not mean it is well formulated.
What matters is checking:
- The real INCI list
- The transparency of the brand
- The certifications, if any
- The type of preservatives
- The type of fragrance
- Whether it is a rinse-off or leave-on product
- Whether it avoids unnecessary ingredients
At Linverd, we do not defend natural cosmetics because they are trendy.
We defend them because they make sense.
Because just as we do not want to eat ultra-processed products full of unnecessary additives every day, it also does not make much sense to apply cosmetic formulas full of ingredients we cannot understand every day.
Beauty that cares should not work against your health
This article is not about being afraid of cosmetics.
It is about having criteria.
It is about understanding that what you apply to your skin every morning is also part of your lifestyle.
Just as you choose better olive oil, bread, eggs or chocolate, you can also choose a better cream, deodorant or sunscreen.
Because real beauty should not only be about looking good on the outside.
It should also help you respect what is happening inside.
And perhaps the first step is not changing your whole routine.
Perhaps the first step is simply turning the bottle around and reading the label.