Hidden Hormone Disruptors: The Chemicals Commonly Found in Everyday Body Products
Most people think about nutrition, stress and sleep when it comes to hormone health. But there is another piece of the puzzle that is often overlooked — daily exposure to environmental toxins hidden inside personal care products.
From moisturisers and perfumes to shampoo, makeup and deodorant, many conventional body products contain chemicals that can interfere with hormones, irritate the microbiome and place additional strain on detoxification pathways. These substances are often referred to as endocrine disrupting chemicals (EDCs), meaning they may interfere with normal hormone signalling within the body.
Importantly, the research in this area is still evolving. While some chemicals have stronger evidence than others, scientists are increasingly concerned about the cumulative effects of long-term, low-dose exposure to multiple compounds simultaneously rather than one isolated ingredient alone.
Why Are These Chemicals Used?
Many synthetic compounds are used because they improve product stability, texture and shelf life. They may help products:
Resist mould and bacterial growth
Maintain fragrance for longer
Improve texture and spreadability
Create foaming or lathering effects
Enhance water resistance
Reduce manufacturing costs
From an industrial perspective, these ingredients are highly effective. However, concerns arise when repeated exposure may influence endocrine, reproductive or metabolic health.
What Is the Environmental Working Group (EWG)?
The Environmental Working Group is a non-profit organisation that researches chemical exposure in consumer products and advocates for stricter safety standards around cosmetics, food and environmental toxins.
One of their best-known tools is the EWG Skin Deep Database, which evaluates thousands of personal care products and ingredients according to available safety data, toxicity concerns and research relating to cancer, allergies, reproductive toxicity and endocrine disruption.
EWG has repeatedly highlighted concerns about:
Undisclosed fragrance chemicals
PFAS (“forever chemicals”) in cosmetics
Parabens and phthalates
Formaldehyde-releasing preservatives
Weak cosmetic regulations in many countries
While not all scientists agree with every EWG risk rating, the organisation has played a major role in increasing public awareness around cumulative chemical exposure and transparency within the beauty industry.
Common Chemicals of Concern in Body Products
Parabens
Parabens are preservatives commonly used in skincare, makeup, shampoo and body washes to prevent microbial growth and extend shelf life.
Common examples include:
Methylparaben
Propylparaben
Butylparaben
Ethylparaben
Parabens have attracted attention because they can exhibit weak oestrogen-like activity in laboratory studies. Research has investigated potential links between paraben exposure and reproductive health, breast tissue changes and altered puberty timing.
A 2022 systematic review examining parabens, phenols and phthalates in personal care products concluded that exposure to endocrine disrupting chemicals is widespread and may influence hormone-sensitive processes, particularly during vulnerable developmental periods such as puberty.
However, it is important to present the evidence fairly. Some reviews note that although parabens demonstrate hormonal activity in experimental settings, evidence directly linking typical cosmetic exposure to major human disease outcomes remains inconsistent.
This is an important distinction. The concern is not necessarily that one moisturiser will cause disease, but rather that chronic cumulative exposure may contribute to overall hormonal burden in susceptible individuals.
Phthalates
Phthalates are chemicals commonly used to stabilise fragrances and increase flexibility in plastics. In body products, they are often hidden under the ingredient term “fragrance” or “parfum.”
Phthalates are among the most extensively studied endocrine disrupting chemicals and have been associated with:
Reproductive hormone disruption
Reduced testosterone production
Fertility concerns
Metabolic dysfunction
Altered fetal development
Obesity risk
Research suggests phthalates may interfere with hormone signalling even at relatively low exposure levels.
Children may be particularly vulnerable. Studies have found higher urinary levels of phthalates in children using multiple personal care products including lotions, sunscreens and hair products.
Synthetic Fragrance
The term “fragrance” may represent a mixture of dozens or even hundreds of undisclosed chemicals.
Some fragrance compounds have been associated with:
Allergic reactions
Skin irritation
Headaches and migraines
Respiratory irritation
Hormone disruption
Individuals with asthma, mast cell activation, histamine intolerance or chemical sensitivities may be especially reactive to synthetic fragrance exposure.
One challenge is that fragrance formulations are often protected as trade secrets, meaning companies may not disclose every ingredient used within the blend.
Triclosan
Triclosan is an antimicrobial chemical previously common in antibacterial soaps, toothpaste and deodorants.
Research has raised concerns about:
Thyroid hormone disruption
Alterations to the gut microbiome
Antibiotic resistance
Immune dysregulation
Laboratory studies demonstrate endocrine activity, although the long-term implications in humans remain under investigation.
PFAS (“Forever Chemicals”)
PFAS are synthetic compounds used to create smooth, waterproof or long-lasting cosmetic finishes.
They are called “forever chemicals” because they persist in both the environment and the human body for extremely long periods.
Emerging evidence has linked PFAS exposure with:
Thyroid dysfunction
Immune dysregulation
Fertility concerns
Liver stress
Hormonal disruption
EWG investigations have identified PFAS contamination in a variety of cosmetics including foundations, mascaras and long-wear makeup products, particularly those marketed as “waterproof” or “long-lasting.”
Formaldehyde-Releasing Preservatives
Some preservatives slowly release formaldehyde over time to prevent microbial contamination.
Examples include:
DMDM hydantoin
Quaternium-15
Imidazolidinyl urea
Formaldehyde exposure has been associated with:
Skin sensitisation
Respiratory irritation
Inflammatory responses
Certain individuals with eczema, asthma or chemical sensitivities may be more reactive to these preservatives.
Why Hormone Disruption Matters
Hormones regulate nearly every major process in the body, including:
Metabolism
Fertility
Mood
Sleep
Thyroid function
Energy production
Menstrual cycles
Skin health
Endocrine disrupting chemicals may mimic hormones, block hormone receptors or alter hormone production and metabolism.
The endocrine system is particularly sensitive during periods of hormonal change such as:
Pregnancy
Puberty
Perimenopause
Menopause
This is one reason researchers remain concerned about long-term environmental exposures, especially during vulnerable life stages.
The Detoxification Connection
The body does possess sophisticated detoxification systems involving the liver, kidneys, gut, skin and lymphatic system. However, detoxification capacity may be influenced by:
Nutrient status
Gut health
Sleep quality
Chronic stress
Fibre intake
Environmental load
This does not mean the body is incapable of detoxifying chemicals. Rather, reducing unnecessary exposure while supporting normal elimination pathways may help reduce the overall burden placed on the body.
A Simple Low-Toxin Herbal Balm Recipe
One practical way to reduce exposure is to simplify body care products and use ingredients with fewer synthetic additives.
Simple Calendula Skin Balm
Ingredients
50mL organic olive oil infused with calendula
10g beeswax pellets
5mL jojoba oil
Optional: 2 drops lavender essential oil
Method
Add the calendula oil and beeswax to a heatproof jar or double boiler.
Heat gently until the beeswax melts completely.
Remove from heat and stir in jojoba oil.
Add lavender essential oil if using. Don’t exceed the recipe amount. The general guide is not to exceed 0.5%
Pour into a sterilised jar or tin and allow to cool fully before sealing.
This simple balm avoids synthetic fragrance, parabens and unnecessary preservatives while still providing effective skin barrier support.
Practical Ways to Reduce Exposure
You do not need to pursue perfection or fear every ingredient. A more balanced and evidence-informed approach is to reduce unnecessary exposure where practical.
Some realistic starting points include:
Choosing fragrance-free products where possible
Reducing heavily scented products in the home
Looking for paraben-free and phthalate-free options
Avoiding excessive plastic food and cosmetic containers
Simplifying skincare routines
Checking ingredients using the EWG Skin Deep Database
Supporting healthy detoxification through adequate protein, fibre, hydration and micronutrient intake
Small consistent changes are often more sustainable than attempting to eliminate every possible exposure source.
Environmental toxins in personal care products are an increasingly researched area within endocrine and environmental medicine. While not every study shows definitive harm at everyday exposure levels, there is sufficient evidence to justify awareness and precaution, particularly regarding cumulative long-term exposure and vulnerable populations.
The goal is not fear, but informed decision-making. Understanding what is in your products allows you to reduce unnecessary chemical burden while supporting overall hormonal, metabolic and immune health.
References
Braun JM, et al. Personal care product use and urinary phthalate metabolite and paraben concentrations during pregnancy among women from a fertility clinic. Environmental Research. 2014.
Diamanti-Kandarakis E, et al. Endocrine-disrupting chemicals: an Endocrine Society scientific statement. Endocrine Reviews. 2009.
Gao CJ, Kannan K. Phthalates, bisphenols, parabens and triclosan in feminine hygiene products from the United States and their implications for human exposure. Environment International. 2020.
Gore AC, et al. EDC-2: The Endocrine Society’s Second Scientific Statement on Endocrine-Disrupting Chemicals. Endocrine Reviews. 2015.
Hampton T. Researchers examine potential effects of endocrine-disrupting chemicals. JAMA. 2016.
Environmental Working Group Skin Deep Database.
Kassotis CD, et al. Characterization of estrogen and androgen activity of chemicals commonly found in personal care products. Toxicology and Applied Pharmacology. 2020.
National Institute of Environmental Health Sciences (NIEHS). Endocrine Disruptors Fact Sheet.
Philippat C, et al. Prenatal exposure to phenols and growth in boys. Epidemiology. 2014.
Scientific American. The Problem With Forever Chemicals in Cosmetics. 2023.
Disclaimer: This blog is intended for educational and informational purposes only and does not constitute medical advice, diagnosis or treatment. While every effort has been made to ensure the information provided is evidence-based and accurate at the time of writing, research surrounding environmental toxins and endocrine disrupting chemicals is continually evolving. The information presented should not replace personalised advice from your doctor, naturopath or qualified healthcare practitioner. Always consult a healthcare professional before making significant changes to your health routine, particularly if you are pregnant, breastfeeding, taking medication or managing a medical condition. References to specific ingredients, organisations or studies are provided for educational purposes and do not constitute endorsement or guarantee of harm or safety.
