Beauty and Skincare
What goes on your skin goes into your body. Here is what that means and what to do about it.
Your skin absorbs. That is what it does. Everything you apply to it has a direct route into your bloodstream, and from there into every system in your body.
It is not a barrier. It is a doorway.
Research suggests that a significant portion of what you apply to your skin is absorbed directly into the bloodstream within minutes. The skin does not filter or neutralise what passes through it. Whatever is in your moisturiser, your shampoo, your deodorant, your perfume, your sunscreen, goes in.
The average person applies between nine and fifteen personal care products every single morning before leaving the house. Each product contains multiple ingredients. Many of those ingredients have been linked to hormonal disruption, reproductive harm and long term health consequences.
Think about that for a moment. Before breakfast, before a single bite of food, the body has already been exposed to dozens of synthetic chemicals through the daily routine most of us never think twice about.
This page tells you which ingredients to avoid, why they matter, and what genuinely clean alternatives look like.
The Ingredients to Avoid
These are the most common hormone disrupting chemicals found in mainstream skincare and personal care products. Learning to recognise them on an ingredient list is one of the most useful things you can do for your long term health.
Parabens
Parabens are preservatives used to extend the shelf life of cosmetics and personal care products. They mimic oestrogen in the body, binding to oestrogen receptors and interfering with the hormonal system. They have been detected in breast tissue samples and are associated with disruption of reproductive hormones in both men and women.
Look for: methylparaben, ethylparaben, propylparaben, butylparaben, isobutylparaben on ingredient lists.
Phthalates and Synthetic Fragrance
Phthalates are synthetic chemicals used to make fragrances last longer and to make plastics more flexible. In skincare they are most commonly delivered through a single word on the ingredient list: "fragrance" or "parfum." That word is a legal loophole. It can represent a blend of hundreds of individual chemicals, none of which the manufacturer is required to disclose. Phthalates, synthetic musks and other hormone disrupting compounds are routinely hidden inside it.
Phthalates have an anti-androgenic effect, meaning they lower testosterone. Dr Shanna Swan's research found a direct link between prenatal phthalate exposure and reduced testosterone in male babies, with measurable effects on reproductive development that can last into adulthood.
Look for: DEP, DBP, DEHP on ingredient lists, or avoid any product listing "fragrance" or "parfum" without further disclosure. Products scented only with named essential oils are the cleanest alternative.
Sodium Lauryl Sulphate and Sodium Laureth Sulphate
SLS and SLES are foaming agents found in most shampoos, body washes, toothpastes and facial cleansers. They are effective at stripping grease, which is why they foam so well. The problem is they also strip the skin and scalp of their natural protective barrier, increasing permeability and making it easier for other chemicals in the product to penetrate the skin. SLES can also be contaminated with 1,4-dioxane, a probable carcinogen, as a byproduct of its manufacturing process.
Look for: sodium lauryl sulphate, sodium laureth sulphate, SLS, SLES on ingredient lists.
Chemical Sunscreen Filters
Chemical sunscreens work by absorbing UV radiation and converting it to heat. The most widely used filters, including oxybenzone, octinoxate and homosalate, have been detected in human blood, urine and breastmilk after a single application. Oxybenzone in particular has been identified as an endocrine disruptor in multiple studies. The FDA in the United States has stated that only two sunscreen ingredients, zinc oxide and titanium dioxide, can currently be considered safe and effective based on available evidence.
What to look for instead: mineral sunscreens using non-nano zinc oxide or titanium dioxide as the active ingredient.
Mineral Oils and Petroleum Derivatives
Mineral oil, petrolatum and paraffinum liquidum are byproducts of petroleum refining. They are cheap, long lasting and used widely in moisturisers, lip products and baby products. They sit on top of the skin creating a barrier that locks in moisture but also locks in heat and prevents the skin from breathing. Poorly refined grades can contain polycyclic aromatic hydrocarbons, which are known carcinogens. The EU restricts their use in cosmetics more strictly than the UK currently does.
Look for: mineral oil, petrolatum, paraffinum liquidum, petroleum jelly on ingredient lists.
The Fertility Connection
The link between personal care products and reproductive health is one of the most important and least discussed areas of fertility research.
Dr Shanna Swan, whose work on declining sperm counts we reference throughout this site, has spent years specifically studying phthalates and their effect on reproductive development. Her findings are stark. Prenatal exposure to phthalates, meaning exposure during pregnancy through the products a mother uses daily, has been directly linked to changes in male reproductive development including reduced testosterone, altered genital development and lower sperm quality in adulthood.
Phthalates are not an industrial chemical most people would ever encounter in isolation. They are in the perfume worn every day. In the shampoo used every morning. In the nail polish applied once a week. The exposure is not occasional. It is constant. And it accumulates.
Parabens have been detected in breast tumour tissue. Oxybenzone has been found in human breastmilk and blood at concentrations exceeding the FDA's level of concern after just a single application. Research associates these chemicals with negative hormonal outcomes, though definitive causation in humans is still being established. The precautionary case for avoiding them is strong. The body burden of synthetic chemicals from personal care products alone is significant, before food, water or the home environment are even considered.
For anyone trying to conceive, pregnant, or thinking about becoming pregnant, the bathroom cabinet deserves as much attention as the kitchen cupboard.
What Clean Skincare Actually Looks Like
Clean skincare is not about expensive products or complicated routines. It is about fewer, better ingredients. The shorter the ingredient list and the more recognisable each item on it, the better.
Here is what to look for:
Look for Soil Association COSMOS Organic certification. This is the UK gold standard for organic skincare and guarantees the product meets strict standards for ingredient sourcing, processing and packaging.
If a product is scented, the ingredient list should name the specific essential oils used. Rose water, lavender oil, chamomile extract are all transparent. The word "fragrance" or "parfum" alone is not.
Choose sunscreens with non-nano zinc oxide or titanium dioxide as the sole active UV filter. These sit on top of the skin rather than being absorbed into it, and neither has been associated with hormonal disruption.
Products need some form of preservation to remain safe and stable. Clean alternatives to parabens include rosemary extract, vitamin E (tocopherol), sodium benzoate from natural sources, and potassium sorbate.
Plastic packaging can leach chemicals into the product inside, particularly when the product contains oils or acids. Glass and aluminium are the cleanest options for storage.
Certifications Worth Trusting
Not all claims on skincare packaging are meaningful. These certifications have genuine standards behind them and are worth looking for:
The UK's most rigorous organic certification for cosmetics. Prohibits synthetic fragrances, parabens, phthalates, SLS, mineral oils and GMO ingredients.
A French certification body recognised across Europe. Products must contain a minimum percentage of natural and organic ingredients and exclude a defined list of harmful synthetics.
An international standard for natural and organic cosmetics. Prohibits synthetic fragrances, silicones, parabens and petrochemical derivatives.
The Environmental Working Group's own product verification programme. Products must meet strict criteria for ingredient safety and full transparency of formulation. The EWG Skin Deep database is also a free resource for checking the safety rating of individual ingredients and products.
Where to Start
Replacing every product at once is unnecessary and expensive. The most effective approach is to replace products as they run out, starting with the ones you use most frequently and leave on your skin the longest.
Priority order for switching to clean:
1. Moisturiser and body lotion. Left on skin all day, maximum absorption.
2. Deodorant. Applied to thin skin near lymph nodes daily.
3. Perfume and fragrance products. Highest concentration of hidden phthalates.
4. Sunscreen. Applied to large surface areas, chemical filters absorb rapidly.
5. Shampoo and body wash. Rinse off products have lower absorption but SLS and fragrance still matter.
One swap at a time is enough. It adds up quickly.
The skin is the body's largest organ. What it absorbs becomes part of the body's chemical environment, the same environment in which hormones are produced, fertility is maintained, and the next generation begins to form.
It deserves the same attention as the food on your plate.
Start with what you put on your skin today.
Sources: Dr Shanna Swan, Count Down (2021) | Campaign for Safe Cosmetics | Environmental Working Group Skin Deep Database | FDA Sunscreen Safety Review (2019) | Soil Association COSMOS Standard | European Commission Cosmetics Regulation (EC) No 1223/2009