
Pregnancy comes with a host of changes and symptoms, and one of the most common is a heightened sense of smell. This can make the experience of perfume very different for expectant mothers, and not always in a good way. The question of whether it is safe to wear perfume during pregnancy is complex and depends on various factors, from the ingredients in the perfume to the mother's personal comfort level. While there is limited scientific research on the topic, anecdotal evidence suggests that the strong sense of smell pregnant women often experience can make perfumes smell different and more unpleasant. This can contribute to pregnancy side effects like headaches, nausea, and vomiting.
| Characteristics | Values |
|---|---|
| Effect on pregnancy | Aversion to perfumes due to heightened sense of smell |
| Hormonal changes | Increase in estrogen, progesterone and hCG |
| Side effects | Headaches, dizziness, nausea and vomiting |
| Synthetic fragrances | May contain phthalates, synthetic musks, synthetic UV filters and other toxic ingredients |
| Natural alternatives | Essential oils, natural perfumes, ginger, mint, lemon, cinnamon |
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What You'll Learn

Aversion to perfume during pregnancy
Pregnant women often experience an aversion to perfume. This is believed to be caused by hormonal changes, which can lead to a heightened sense of smell, making perfumes and other things smell different and often unpleasant. This heightened sense of smell is a common symptom during pregnancy, with studies showing that about two-thirds of pregnant women become more sensitive to smells.
The aversion to perfume during pregnancy can be quite strong, with some women describing it as a feeling of repugnance or a desire to avoid the smell altogether. This aversion is not just limited to perfume but can also extend to other common odors, such as fried chicken or cologne. It is important to note that this heightened sense of smell can also be beneficial, as it may serve as a protective function, warning pregnant women of something potentially toxic to their baby.
The change in the perception of perfume during pregnancy can be attributed to several factors. Firstly, hormonal changes during pregnancy can alter the way perfume interacts with a woman's body, leading to a different smell. Additionally, weight gain and an increase in body temperature can cause an increase in sweat production, which can combine with the perfume and result in a different scent.
To manage this aversion to perfume, some women opt for natural perfumes made from essential oils or phthalate-free beauty products. However, it is recommended to keep any scent, even natural ones, to a minimum during pregnancy to maximize the baby's olfactory development and bonding. Avoiding synthetic scents during breastfeeding is also important as the fat-soluble toxins can be stored in fatty deposits and passed on to the baby through breast milk.
While there is limited scientific research on the direct relationship between perfume and pregnant women's senses of smell, the anecdotal evidence is consistent and abundant. The decision to continue wearing perfume during pregnancy ultimately depends on each woman's personal comfort level and preference.
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Hormonal changes and their impact on smell
Pregnancy brings a host of changes, and one of the most notable is the heightened sense of smell that many women experience. This enhanced sense of smell, known as hyperosmia, can cause a range of reactions to perfumes and other scents. While the exact causes are still being studied, hormonal changes are believed to play a significant role in this phenomenon.
Hormones and their impact on olfaction during pregnancy:
Hormonal fluctuations during pregnancy are thought to be a key factor in the heightened sense of smell many women experience. Specifically, the increase in progesterone and hCG (human chorionic gonadotropin) levels is believed to play a role in enhancing olfactory sensitivity. Mahino Talib, MD, an OB-GYN and clinical assistant professor, explains that these hormonal changes lead to an increase in the acuity and number of receptors on the olfactory nerve, resulting in a heightened sense of smell. This heightened sensitivity often occurs early in pregnancy, with many women noticing it around the six-week mark or even before they take a pregnancy test.
The impact of this heightened sense of smell can be quite significant. Many women report that scents they previously enjoyed now smell unappealing or even repulsive. Perfumes, in particular, can become overpowering or unpleasant. This aversion to perfumes and other strong scents is likely due to the increased sensitivity and the way hormones interact with the sense of smell. The change in perception of perfumes can be quite drastic, with some women reporting that they can now detect colleagues or neighbours wearing strong perfumes from a distance.
The increase in olfactory sensitivity can also have functional implications. It is believed to serve a protective function, as a more sensitive nose can warn of potentially toxic substances or foods that could be harmful to the developing fetus. This sensitivity may also be linked to morning sickness, with strong smells triggering nausea and vomiting. Additionally, the change in smell perception can impact a woman's food choices, as certain foods may become unappealing due to their odour.
The impact of hormonal changes on smell perception during pregnancy extends beyond the sense of smell itself. The alteration in how scents are perceived can lead to physical discomfort, including headaches and nausea. This can be exacerbated by the use of perfumes, especially synthetic fragrances, which often contain toxic ingredients such as phthalates and synthetic musks. These ingredients can not only affect the pregnant woman but may also reach the growing fetus via the bloodstream, potentially impacting the baby's health.
In summary, hormonal changes during pregnancy, particularly fluctuations in progesterone and hCG levels, are believed to contribute to the heightened sense of smell that many pregnant women experience. This heightened sensitivity can lead to aversions to perfumes and other strong scents, potentially serving a protective function and triggering morning sickness. Additionally, the use of synthetic fragrances during pregnancy may expose both mother and fetus to toxic ingredients commonly found in these products.
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Morning sickness and its link to smell sensitivity
Pregnancy brings a host of changes to a woman's body, and one of the most common is an increased sensitivity to smell. This heightened sense of smell, or hyperosmia, can cause once-pleasant aromas, like perfumes, to become unpleasant or even repulsive. This phenomenon is believed to be linked to the surge of hormones during pregnancy, particularly in the first trimester, and it often coincides with the onset of nausea and vomiting associated with morning sickness.
The link between smell sensitivity and morning sickness is well-documented in anecdotal reports, with many pregnant women experiencing a stronger sense of smell and heightened reactions to various scents. This heightened sense of smell can make perfumes and other fragrances smell different or more intense, often contributing to nausea and aversions to specific odours. The change in how perfumes are experienced is believed to be due to the interaction between the fragrance and the increased hormones, particularly estrogen, during pregnancy.
While the exact mechanism is not fully understood, studies have shown that the majority of pregnant women experience a heightened sense of smell, with some research suggesting that up to two-thirds of pregnant women are affected. This increased sensitivity to smell is believed to serve a protective function, warning pregnant women of potentially toxic substances and helping them avoid foods that could be harmful to their developing baby. Additionally, the enhanced sense of smell may contribute to the development of food aversions, which are common during pregnancy.
The impact of perfumes on pregnancy is not limited to their smell. Synthetic fragrances often contain toxic ingredients such as phthalates, synthetic musks, and UV filters, which can interfere with the mother's and baby's hormones. These xenoestrogens (artificial oestrogens) can be harmful to humans, animals, and the environment. Therefore, it is recommended to opt for natural perfumes, essential oils, or fragrance-free options during pregnancy to minimise potential risks to both mother and child.
To manage smell sensitivity during pregnancy, it is advisable to avoid strong scents and noxious smells. Unscented or lightly scented products, including toiletries and cleaning supplies, can help reduce exposure to overwhelming fragrances. Saline washes and sprays can also keep nasal passages healthy and alleviate congestion, another common issue during pregnancy. Surrounding oneself with soothing scents like mint, lemon, ginger, or cinnamon can help ease nausea and provide some relief from unpleasant smells.
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Potential toxins in synthetic fragrances
Pregnant women often experience a heightened sense of smell, which can make perfumes smell different than before pregnancy, and often unpleasant. This is caused by a change in hormones, specifically estrogen, and an increase in body temperature, causing an increase in sweat production. This natural body odor combines with the scent of the perfume, causing it to smell different.
Synthetic fragrances are derived from petroleum and contain several toxic ingredients, including phthalates, synthetic musks, synthetic UV filters, benzene derivatives, aldehydes, toluene, and other known carcinogens. These toxins are considered xenoestrogens (artificial estrogens) and are toxic to humans, animals, and the environment. They can have a serious impact on the hormones of both the mother and the baby and may be passed on to the baby through breast milk.
In addition to the potential harm caused by exposure to these toxins, synthetic fragrances can also cause short-term symptoms such as allergies, respiratory distress, headaches, dizziness, nausea, and brain fog. They may also trigger various acute and chronic pathological conditions, including asthma attacks, breathing difficulties, cardiovascular and neurological problems, and endocrine disruption.
To avoid these potential risks, it is recommended to use natural perfumes and essential oils, or fragrance-free options, especially during pregnancy and breastfeeding. It is also important to note that even natural scents should be kept to a minimum during pregnancy to maximize the baby's olfactory development and bonding.
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Natural alternatives to synthetic perfumes
Pregnant women often experience a heightened sense of smell, which can make perfumes smell different than before pregnancy, and often in an unpleasant way. This can be attributed to hormonal changes, particularly an increase in estrogen, as well as weight gain and an increase in body temperature, causing an increase in sweat production.
Synthetic fragrances almost always contain phthalates, synthetic musks, synthetic UV filters, and other toxic ingredients, which can have a serious impact on hormones and on the health of the mother and baby. Phthalates are endocrine disruptors, wreaking havoc on hormones, and are linked to decreased fertility in men and women, miscarriage, pregnancy complications, increased risk for breast cancer, and interruptions in the normal development of the fetus and of small children.
To avoid these risks, natural perfumes and essential oils are recommended during pregnancy. Here are some natural alternatives to synthetic perfumes:
- Nurture by Abel Odor is a 100% natural fragrance with top notes of fleur l'orange, Bulgarian rose, and lentisque, a heart of jasmine and ginger, and base notes of East Indian sandalwood.
- Maison Sybarite is a water-based, alcohol-free, paraben-free, phthalate-free, and chemical-free fine fragrance brand.
- Pretty Special Beauty offers delicately scented perfume oils that are specially formulated to improve wellbeing and mood and are perfect from the second trimester of pregnancy.
- Beautycounter has launched the first non-toxic perfumes, which are EWG Verified and safe for pregnancy.
- Natural perfumes based on absolutes, resins, and essential oils, such as those from Abel, NEOM, and Pacifica, offer gorgeous natural fragrances without harmful preservatives, sunscreens, or other dubious ingredients.
When selecting a non-toxic fragrance, it is important to be responsible as essential oils can interfere with natural hormones and cycles. It is recommended to consult a naturopath or qualified aromatherapist if unsure.
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Frequently asked questions
There is limited research on the effects of perfume on pregnant women. However, it is known that synthetic fragrances contain toxic ingredients such as phthalates, synthetic musks, and UV filters, which can negatively impact the hormones of both mother and baby. Therefore, it is recommended to avoid synthetic fragrances and opt for natural perfumes or essential oils.
Pregnancy can cause a heightened sense of smell, especially in the first trimester, which may make you more sensitive to strong scents. This heightened sensitivity often declines as the pregnancy progresses and usually returns to normal after giving birth.
Yes, almost everything a pregnant woman is exposed to will reach the baby via the bloodstream. Toxins from synthetic fragrances can be stored in fatty deposits in the body and passed on to the baby through breast milk.
Natural perfumes made from essential oils are a safer alternative during pregnancy. However, it is recommended to keep any scent, even natural ones, to a minimum to maximize your baby's olfactory development and bonding.
Yes, some ingredients to avoid include sage, clary sage, basil, and jasmine, as these extracts can help regulate the menstrual cycle. It is best to consult with a healthcare professional or aromatherapist if you are unsure about specific ingredients.











































