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Poursuivez la lecture si vous souffrez d’affections cutanées ou de problèmes de santé d’origine hormonale tels que :
mélasma, acné hormonale, syndrome prémenstruel (SPM), endométriose, fibromes, syndrome des ovaires polykystiques (SOPK)
Poursuivez la lecture si vous souffrez d'affections cutanées ou de problèmes de santé d'origine hormonale tels que
le mélasma, l'acné hormonale, le SPM, l'endométriose, les fibromes, le SOPK
Continuez votre lecture si vous souffrez de problèmes de peau ou de santé liés aux hormones, tels que le
mélasma, l'acné hormonale, le syndrome prémenstruel, l'endométriose, les fibromes utérins, le SOPK
Your skin is not just a surface - it’s a biologically active organ that constantly communicates with your internal systems. What you apply to it matters. Many ingredients used in modern skincare - from additives to preservatives and UV filters - can penetrate the skin, accumulate over time, or interact with hormone receptors in ways that impact both health and appearance. And the most shocking recent discoveries show that not only synthetic skincare ingredients could be endocrine disruptors but certain common plant extracts and essential oils can interfere with hormonal balance.
For women, whose hormonal systems are naturally more sensitive and cyclical, avoiding endocrine disruptors and hormone-active compounds is essential for long-term well-being. And for women already dealing with hormone driven conditions like PMS, PCOS, Endometriosis, fibroids, and adenomyosis avoiding endocrine disruptors as much as they can is a must.
How Endocrine Disruptors Affect Women’s Hormonal Health
Endocrine-disrupting chemicals (EDCs) can mimic hormones, block them, or interfere with their metabolism. Even low-level, chronic exposure can influence health outcomes, particularly estrogen-related processes.
In women, EDCs are associated with:
These ingredients do not exist in isolation - they accumulate. Daily skincare routines can become a major source of exposure.
Mechanisms of Endocrine Disruption
Endocrine disruptors (natural or synthetic) affect the hormonal system via several pathways:
Even weak activity can matter in chronic exposure, particularly during sensitive life stages (pregnancy, puberty).
Hormonal Disruption and the Skin: A Direct Pathway
Hormones regulate collagen, pigmentation, inflammation, lipid balance, and skin immunity. Disrupting these pathways can lead to:
This is why hormone-conscious skincare is fundamentally about supporting biological balance - not overloading the body with foreign signaling molecules.
The Unsuspected Danger: Endocrine-Active Essential Oils
Essential oils are a staple in clean beauty and considered “natural,” but natural does not mean biologically inactive. Many essential oils contain potent terpenes and phenolic compounds capable of interacting with human hormone receptors.
Essential oils with demonstrated estrogenic or endocrine-disrupting effects include:
Essential oils are extremely concentrated - often 40–100× stronger than the raw plant - meaning even minimal daily use can deliver significant hormonal activity.
Because they are lipophilic, they penetrate easily through the skin’s lipid layers, especially when used in serums, oils, moisturizers, or products left on overnight.
For women with hormonal sensitivity, this exposure is meaningful.
Natural Plant Extracts: The Surprising Role They Play in Hormonal Balance
While essential oils are the most concentrated plant derivatives, many plant extracts also contain phytoestrogens such as flavonoids, isoflavones, lignans, coumarins, and terpenoids. These compounds are structurally similar to human estrogen and may bind to estrogen receptors (ER-α and ER-β), affecting:
Common skincare plant extracts with estrogenic or hormone-active potential include:
Many are included for antioxidant or soothing benefits - but their hormonal effects are often overlooked.
Synthetic Additives: The Most Common Endocrine Disruptors in Skincare
Modern skincare, especially mainstream products, often contains a cocktail of preservatives, UV filters, fragrances, and surfactants that have well-documented endocrine-disrupting activity.
1. Preservatives with Hormonal Activity
Many conventional preservatives used to prevent microbial growth can mimic estrogen or interfere with hormone receptors.
Parabens
Widely used in creams, lotions, and cleansers:
Parabens have estrogenic activity and accumulate in breast tissue.
Phenoxyethanol
Common in “clean beauty,” yet shown to interfere with reproductive signaling and irritate the skin barrier.
Formaldehyde-releasing preservatives
These compounds release slow, constant amounts of formaldehyde - a known endocrine disruptor and carcinogen.
BHT and BHA
Antioxidant preservatives in creams, sunscreens, and lip products:
2. UV Filters With Estrogenic or Thyroid-Disrupting Effects
Chemical sunscreens often contain UV filters that interact with hormone receptors or interfere with thyroid function.
Common endocrine-disrupting UV filters:
These filters accumulate in the body, breast milk, and water systems.
3. Fragrance and “Parfum” - One Word, Hundreds of Unregulated Chemicals
Fragrance is one of the most significant sources of endocrine disruptors in personal care. Brands are not required to disclose individual components.
Common hormone-disrupting fragrance compounds:
Fragrance can also impair the skin barrier and trigger inflammation.
4. Surfactants and Emulsifiers That Affect Hormonal and Skin Health
Surfactants make cleansers foam and help formulas emulsify - but some have systemic effects.
Sodium lauryl sulfate (SLS)
Highly irritating; disrupts skin barrier → causes chronic inflammation, which impacts hormone regulation indirectly.
Sodium laureth sulfate (SLES)
Sometimes contaminated with 1,4-dioxane, a carcinogenic endocrine disruptor.
PEGs (polyethylene glycols)
Can carry impurities like ethylene oxide and 1,4-dioxane, both linked to endocrine disruption.
Ethanolamines (TEA, DEA, MEA)
React with nitrites to form carcinogenic nitrosamines; linked to hormonal imbalance.
5. Other Common Additives with Hormone - Active Properties
Phthalates
Found in fragrance, plastics, and some polymers; strongly disrupt estrogen and androgen signaling.
Triclosan
Antimicrobial agent known to disrupt thyroid function.
Siloxanes (D4, D5, D6)
Used for slip and glide in lotions and primers; interfere with estrogen and reproductive hormones.
Benzophenones
Used as stabilizers in products - mimic estrogen and affect thyroid function.
Women today receive estrogenic exposure from many sources - plastics, preservatives, pollution, fragrance, food, and now skincare. These exposures accumulate into what researchers call total estrogenic load. For those already dealing with estrogen-dominant conditions, thyroid issues, melasma, hormonal acne, fertility issues, perimenopause, or family histories of hormone-driven cancers, minimizing additional estrogenic input matters.
Your skin is not just a surface — it’s a biologically active organ that constantly communicates with your internal systems. What you apply to it matters. Many ingredients used in modern skincare — from additives to preservatives and UV filters — can penetrate the skin, accumulate over time, or interact with hormone receptors in ways that impact both health and appearance. And the most shocking recent discoveries show that not only synthetic skincare ingredients could be endocrine disruptors but certain common plant extracts and essential oils can interfere with hormonal balance.
For women, whose hormonal systems are naturally more sensitive and cyclical, avoiding endocrine disruptors and hormone-active compounds is essential for long-term well-being. And for women already dealing with hormone driven conditions like PMS, PCOS, Endometriosis, fibroids, and adenomyosis avoiding endocrine disruptors as much as they can is a must.
How Endocrine Disruptors Affect Women’s Hormonal Health
Endocrine-disrupting chemicals (EDCs) can mimic hormones, block them, or interfere with their metabolism. Even low-level, chronic exposure can influence health outcomes, particularly estrogen-related processes.
In women, EDCs are associated with:
These ingredients do not exist in isolation — they accumulate. Daily skincare routines can become a major source of exposure.
Mechanisms of Endocrine Disruption
Endocrine disruptors (natural or synthetic) affect the hormonal system via several pathways:
Even weak activity can matter in chronic exposure, particularly during sensitive life stages (pregnancy, puberty).
Hormonal Disruption and the Skin: A Direct Pathway
Hormones regulate collagen, pigmentation, inflammation, lipid balance, and skin immunity. Disrupting these pathways can lead to:
This is why hormone-conscious skincare is fundamentally about supporting biological balance — not overloading the body with foreign signaling molecules.
The Unsuspected Danger: Endocrine-Active Essential Oils
Essential oils are a staple in clean beauty and considered “natural,” but natural does not mean biologically inactive. Many essential oils contain potent terpenes and phenolic compounds capable of interacting with human hormone receptors.
Essential oils with demonstrated estrogenic or endocrine-disrupting effects include:
Essential oils are extremely concentrated — often 40–100× stronger than the raw plant — meaning even minimal daily use can deliver significant hormonal activity.
Because they are lipophilic, they penetrate easily through the skin’s lipid layers, especially when used in serums, oils, moisturizers, or products left on overnight.
For women with hormonal sensitivity, this exposure is meaningful.
Natural Plant Extracts: The Surprising Role They Play in Hormonal Balance
While essential oils are the most concentrated plant derivatives, many plant extracts also contain phytoestrogens such as flavonoids, isoflavones, lignans, coumarins, and terpenoids. These compounds are structurally similar to human estrogen and may bind to estrogen receptors (ER-α and ER-β), affecting:
Common skincare plant extracts with estrogenic or hormone-active potential include:
Many are included for antioxidant or soothing benefits — but their hormonal effects are often overlooked.
Synthetic Additives: The Most Common Endocrine Disruptors in Skincare
Modern skincare, especially mainstream products, often contains a cocktail of preservatives, UV filters, fragrances, and surfactants that have well-documented endocrine-disrupting activity.
1. Preservatives with Hormonal Activity
Many conventional preservatives used to prevent microbial growth can mimic estrogen or interfere with hormone receptors.
Parabens
Widely used in creams, lotions, and cleansers:
Parabens have estrogenic activity and accumulate in breast tissue.
Phenoxyethanol
Common in “clean beauty,” yet shown to interfere with reproductive signaling and irritate the skin barrier.
Formaldehyde-releasing preservatives
These compounds release slow, constant amounts of formaldehyde — a known endocrine disruptor and carcinogen.
BHT and BHA
Antioxidant preservatives in creams, sunscreens, and lip products:
2. UV Filters With Estrogenic or Thyroid-Disrupting Effects
Chemical sunscreens often contain UV filters that interact with hormone receptors or interfere with thyroid function.
Common endocrine-disrupting UV filters:
These filters accumulate in the body, breast milk, and water systems.
3. Fragrance and “Parfum” — One Word, Hundreds of Unregulated Chemicals
Fragrance is one of the most significant sources of endocrine disruptors in personal care. Brands are not required to disclose individual components.
Common hormone-disrupting fragrance compounds:
Fragrance can also impair the skin barrier and trigger inflammation.
4. Surfactants and Emulsifiers That Affect Hormonal and Skin Health
Surfactants make cleansers foam and help formulas emulsify — but some have systemic effects.
Sodium lauryl sulfate (SLS)
Highly irritating; disrupts skin barrier → causes chronic inflammation, which impacts hormone regulation indirectly.
Sodium laureth sulfate (SLES)
Sometimes contaminated with 1,4-dioxane, a carcinogenic endocrine disruptor.
PEGs (polyethylene glycols)
Can carry impurities like ethylene oxide and 1,4-dioxane, both linked to endocrine disruption.
Ethanolamines (TEA, DEA, MEA)
React with nitrites to form carcinogenic nitrosamines; linked to hormonal imbalance.
5. Other Common Additives with Hormone-Active Properties
Phthalates
Found in fragrance, plastics, and some polymers; strongly disrupt estrogen and androgen signaling.
Triclosan
Antimicrobial agent known to disrupt thyroid function.
Siloxanes (D4, D5, D6)
Used for slip and glide in lotions and primers; interfere with estrogen and reproductive hormones.
Benzophenones
Used as stabilizers in products — mimic estrogen and affect thyroid function.
Women today receive estrogenic exposure from many sources — plastics, preservatives, pollution, fragrance, food, and now skincare. These exposures accumulate into what researchers call total estrogenic load. For those already dealing with estrogen-dominant conditions, thyroid issues, melasma, hormonal acne, fertility issues, perimenopause, or family histories of hormone-driven cancers, minimizing additional estrogenic input matters.
En tant que personne en périménopause aux prises avec la dominance œstrogénique et des voies de détoxification lentes, et qui vit des montagnes russes hormonales au quotidien, je suis constamment à la recherche de moyens de soutenir et d'équilibrer mes hormones. Cette recherche m'a amenée à changer radicalement mon mode de vie – mais elle transforme aussi mon entreprise de soins de la peau et la façon dont nous formulons nos produits « naturels » aujourd'hui.
Elitsa Milanova, fondatrice de The Other Skincare Company
