Seamus Hammond
Galaxolide is a synthetic musk commonly used in fragrances and household products. It is prized for its clean, sweet, and floral scent, and ability to increase diffusion and add roundness to fragrances. However, galaxolide has also been the subject of controversy due to its potential health and environmental hazards. Studies have shown that galaxolide exposure is ubiquitous in humans, and its presence has been detected in the Great Lakes, leading to concerns about its impact on aquatic life and human health.
| Characteristics | Values |
|---|---|
| Odor profile | Clean, sweet, floral, woody musk, somewhat fruity |
| Odor threshold | 1 ng/L or less |
| Bioconcentration factor (BCF) in fish | 600-1600 |
| Octanol-water partition coefficient (Log Kow) | 5.5 (5.3 – 5.9) |
| Persistence | High |
| Bioaccumulation | High |
| Aquatic toxicity | High |
| Human health hazard | Moderate |
| EU classification | Not a PBT substance |
| EPA classification | Moderately persistent, bioaccumulative, and toxic |
| State of Oregon classification | PBT substance |
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What You'll Learn
- Galaxolide is a synthetic musk with a clean, sweet, floral, woody fragrance
- It is highly toxic to aquatic life and has been found in the Great Lakes
- It may interfere with hormones and other chemical signals in the human body
- It is one of the most popular musks in the world and is used in many luxury fragrance brands such as Tom Ford, Amouage and Creed
- It was first synthesized in 1956 and used in fabric softeners and detergents in the late 1960s
Galaxolide is a synthetic musk with a clean, sweet, floral, woody fragrance
Galaxolide was first synthesized in 1956 and used in the late 1960s. It is a mixture of stereoisomers, with the (4S,7R) and (4S, 7S) forms being the most powerful musk notes. It has a long-lasting fragrance, with a measured bioconcentration factor (BCF) in fish ranging from 600-1600. The EU has determined that galaxolide does not meet the criteria for being classified as a Persistent, Bioaccumulative, and Toxic (PBT) substance. However, the EPA and other studies have found it to be persistent, bioaccumulative, and highly toxic to aquatic organisms, contaminating water sources like the Great Lakes.
The potential health hazards of galaxolide have been a subject of debate. While the SCCNFP stated in 2002 that it can be safely used as a fragrance ingredient in cosmetic products, other studies have raised concerns about its endocrine-disrupting effects, which can impact development, reproduction, metabolism, brain function, and behaviour. It has also been detected in high percentages of human blood plasma and breast milk samples. As a result, there are ongoing efforts to assess and address the potential risks associated with galaxolide exposure.
Galaxolide is a versatile and powerful ingredient in the fragrance industry, offering a clean and sweet musky note. However, its environmental and potential health impacts have led to increasing scrutiny and the need for further research and regulation.
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It is highly toxic to aquatic life and has been found in the Great Lakes
Galaxolide is a synthetic musk with a clean, sweet, floral, and woody fragrance. It is commonly used in household products, including surface cleaners, laundry products, air fresheners, cosmetics, and perfumes. Due to its widespread use, galaxolide has become a persistent pollutant in the environment, particularly in the Great Lakes.
Galaxolide has been detected in the Great Lakes, with studies finding its presence in the water, air, and sediment of these lakes. One study found that galaxolide levels in Lake Erie were doubling every 8-16 years, indicating its bioaccumulative properties. Additionally, galaxolide was detected in 92% of water samples from Lake Michigan.
The presence of galaxolide in the Great Lakes is concerning due to its toxicity to aquatic life. Studies have shown that galaxolide can cause long-term inhibition of specific transporters in cell walls, preventing the removal of toxic molecules from cells. This can lead to an accumulation of toxic substances within cells and increased cell damage. Additionally, galaxolide has been found to inhibit the larval development of small aquatic crustaceans called copepods, further indicating its toxicity to aquatic organisms.
The GreenScreen® for Safer Chemicals, an internationally recognized tool for assessing chemical hazards, has assigned galaxolide a score of Benchmark 1. This score is given to chemicals of the highest concern, with use recommended to be avoided. Benchmark 1 was assigned due to galaxolide's high persistent, bioaccumulative, and aquatic toxicity properties. This means that galaxolide does not break down easily in the environment and can build up over time, leading to toxic effects on aquatic life.
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It may interfere with hormones and other chemical signals in the human body
Galaxolide is a synthetic musk with a clean, sweet, and somewhat fruity fragrance. It is commonly used in fragranced household products and cosmetics, including perfumes, colognes, fabric softeners, and detergents. While galaxolide enhances the fragrance of these products, there are concerns about its potential impact on human health.
One key concern is that galaxolide may interfere with hormones and other chemical signals in the human body. This interference is known as endocrine disruption, and it can have a range of significant effects. Endocrine disruption can result in developmental, reproductive, metabolic, brain, and behavior problems. In other words, exposure to galaxolide may impact the way our bodies develop and function, including our ability to reproduce and the regulation of our metabolism.
The potential for endocrine disruption by galaxolide has been recognized by regulatory bodies. In 2002, the Scientific Committee on Cosmetics and Non-Food Products (SCCNFP), an expert scientific board advising the European Commission, reviewed the human safety of galaxolide in cosmetic products. While they concluded that galaxolide could be safely used as a fragrance ingredient without restrictions, there is ongoing debate and conflicting evidence regarding its potential health hazards.
For instance, a GreenScreen® assessment of galaxolide identified it as a moderate human health hazard for endocrine disruption. This assessment also raised concerns about the potential breakdown of the body's natural defenses against other toxic chemical exposures due to galaxolide exposure. The persistence and bioaccumulation of galaxolide further compound these concerns. Studies have detected galaxolide in various environmental samples, including rivers, drinking water, lake sediment, and fish tissue, indicating its widespread presence and potential for human exposure.
The high persistence and bioaccumulation of galaxolide mean that pollution from this chemical will likely worsen over time with continued use. This is particularly concerning given that galaxolide exposure appears to be ubiquitous in humans. One study found galaxolide in the blood plasma of 91% of participants, with significantly higher levels detected in those who used scented lotions and perfumes. Another study found galaxolide present in 97% of breast milk samples from new mothers.
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It is one of the most popular musks in the world and is used in many luxury fragrance brands such as Tom Ford, Amouage and Creed
Galaxolide is a synthetic musk with a clean, sweet, and somewhat fruity fragrance. It is often used as a fragrance ingredient in household products, cosmetics, and perfumes. Its popularity can be attributed to its low cost and pleasant odour, making it a common ingredient in luxury fragrance brands such as Tom Ford, Amouage, and Creed. It is also known by its chemical name, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta [g]-2-benzopyran, and was first synthesized in 1956.
Galaxolide is a powerful and versatile musk that can be blended with other musks or used as a single note. Its high appreciation among consumers is due to its ability to enhance and fixate the other materials in a fragrance, allowing them to shine through. This quality makes it a popular choice for perfumers, as it can be used in various combinations to create unique and appealing scents.
The use of galaxolide in fragrances has sparked some concerns due to its potential health and environmental hazards. Studies have shown that galaxolide exposure is common in humans, with detectable levels found in the blood plasma of a significant percentage of participants in several studies. It has also been found in breast milk samples, raising concerns about its potential impact on infant health.
Additionally, galaxolide contamination has been detected in water bodies, particularly in the Great Lakes. Its presence in lake sediment, water, and fish tissue suggests that it does not break down easily and accumulates over time. This has led to concerns about its toxicity to aquatic life, with studies indicating that it is highly toxic to fish and other aquatic organisms.
Despite these concerns, the European Chemicals Bureau (ECB) and the Scientific Committee on Cosmetics and Non-Food Products (SCCNFP) have concluded that galaxolide is safe to use as a fragrance ingredient in cosmetic products. However, organisations like Women's Voices for the Earth have commissioned assessments, such as the GreenScreen® for Safer Chemicals, to determine its hazard level and find safer alternatives.
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It was first synthesized in 1956 and used in fabric softeners and detergents in the late 1960s
Galaxolide, a synthetic musk fragrance ingredient, was first synthesized in 1956. It is a mixture of stereoisomers, with the (4S,7R) and (4S, 7S) forms being the most powerful musk notes. This synthetic musk has a clean, sweet, and somewhat fruity fragrance with a floral, woody musk odour. It is commonly used in fragranced household products such as fabric softeners and detergents, to which it was introduced in the late 1960s.
Galaxolide is highly valued by consumers and is the key synthetic musk ingredient, according to the International Fragrance Association (IFRA). Its popularity is due to its ability to enhance and complement other fragrances, allowing them to shine through even in extreme overdoses. It is often the largest aromachemical in luxury fragrance brands such as Tom Ford, Amouage, and Creed. Its long-lasting quality makes it a popular choice for perfumes and colognes, where it adds a musk odour.
The process of organic synthesis used to create galaxolide results in a cleaner fragrance than traditional animal-derived musk, which may have an unpleasant, fecal odour. The synthetic nature of galaxolide also makes it a more ecologically and economically sustainable option than natural musk, which was originally extracted from musk deer.
Despite its widespread use, galaxolide has come under scrutiny for its potential health and environmental hazards. Studies have detected galaxolide in high percentages of human blood plasma and breast milk samples, raising concerns about its ubiquity in humans. Additionally, galaxolide contamination has been found in the Great Lakes, with levels in Lake Erie doubling every 8–16 years. This has led to concerns about its bioaccumulation and persistence in the environment.
In 2002, the Scientific Committee on Cosmetics and Non-Food Products (SCCNFP) reviewed the human safety of galaxolide in cosmetic products and concluded that it could be safely used without restriction. However, other organisations, such as the GreenScreen for Safer Chemicals, have assigned galaxolide a high-concern score due to its persistence, bioaccumulation, and aquatic toxicity properties. The state of Oregon also added galaxolide to its Priority Persistent Pollutants (P3) list in 2010.
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Frequently asked questions
Galaxolide is a synthetic musk with a clean, sweet, floral, woody odour used in fragrances. It is commonly used in fragranced household products and cosmetics.
Galaxolide is used in fragrances to add a musk odour. It is highly appreciated by consumers and allows the other materials in a fragrance to shine through. It is also low cost and popular.
The EU has determined that galaxolide does not meet the criteria for being classified as a Persistent, Bioaccumulative and Toxic (PBT) substance. However, the EPA has found it to be moderately persistent and bioaccumulative and highly toxic to aquatic organisms. The Scientific Committee on Cosmetics and Non-Food Products (SCCNFP) has stated that galaxolide can be safely used as a fragrance ingredient in cosmetic products without any restriction. However, other studies have shown that galaxolide exposure is ubiquitous in humans and may interfere with hormones and other chemical signals in the body.
Galaxolide is often the single largest aromachemical in luxury fragrance brands such as Tom Ford, Amouage and Creed. It is also used in household products such as fabric softeners and detergents. It is not always listed as an ingredient on product labels or websites, so consumers must ask the manufacturer if their products contain galaxolide.
