Cleaner Homes, Greener Planet: The Natural Power of Pine, Camphor & Eucalyptus

Keywords: natural household cleaners, antibacterial cleaners, natural tree extracts, plant-based cleaners, terpene-based cleaners, plant-derived disinfectants

Introduction: The Growing Demand for Plant-Based Cleaners

In recent years, there has been a significant shift toward bio-based, environmentally safe household cleaners, driven by heightened awareness of ecological preservation and the health risks linked to synthetic chemicals in conventional products. Today’s consumers prioritize both efficacy and safety, ensuring their families, pets, and the environment are protected during daily cleaning routines.

The Shift Toward Sustainability

Traditional cleaners often contain toxic substances such as phthalates, chlorine, and bleach, which can cause skin irritation, respiratory issues, and environmental contamination. As ecological responsibility gains prominence, plant-derived cleaners have surged in popularity due to their ability to deliver robust cleaning power without harmful side effects. Research underscores their efficacy: Pandya, Doshi, and Sahay (2017) demonstrated the antibacterial potential of herbal disinfectants for domestic use, while Mawire et al. (2021) validated the antimicrobial properties of Parinari curatellifolia phytochemicals ^{(1; 2)}. These findings solidify the role of natural ingredients in sustainable cleaning.

The Science Behind Bio-Based Chemicals

Bio-based chemicals originate from biodegradable, renewable plant sources rather than synthetic petroleum derivatives. These chemicals degrade naturally into non-toxic constituents, posing less environmental hazard compared to synthetic chemicals, which persist in ecosystems and cause lasting harm. Pine oil, for example, is derived from the gum turpentine of pine species such as Pinus sylvestris L, P. nigra, P. massoniana, and P. elliottii. These trees produce oils rich in natural terpene compounds with strong cleansing qualities, making pine oil a key ingredient in many cleaners.

Key Ingredients: Pine, Camphor, and Eucalyptus

Three popular plant-based ingredients that are commonly used in household cleaners include pine oil, camphor, and eucalyptus oil.

Pine Oil

Pine Oil is the by-product of producing terpineol from gum turpentine obtained by steam distillation of the species Pinus. It contains alpha-Terpineol plus other cyclic terpene alcohols and terpene hydrocarbons. It is valued for its powerful antibacterial, antiviral, and deodorising properties. Its primary components—α-Pinene, β-Pinene, limonene, terpinen-4-ol, and bornyl acetate—contribute to its effectiveness as a cleaning agent. α-Pinene and β-Pinene provide antimicrobial action, while limonene acts as a solvent for grease and grime. Pine oil is widely used in natural cleaning products for its ability to disinfect surfaces, neutralise odours, and break down oils and grease.

Historically, pine wood was used for furniture or building materials, releasing volatile compounds that posed health risks upon exposure. Modern studies, however, highlight its benefits. For instance, Ham and Wells (2011) investigated the surface chemistry of pine-oil cleaners and terpene mixtures reacting with ozone on vinyl flooring tiles. Their findings revealed that terpene compounds enhance reactivity with indoor oxidants when adsorbed to surfaces. If the polar groups of VOCs and semi-VOCs in the gas phase are reoriented when adsorbed to the surface, the reaction with indoor oxidants can be enhanced ⁽³⁾. In household formulations, these terpenes are prized for disinfection, stain removal, and their fresh, natural scent. Pine oil’s biodegradability also makes it an eco-friendly choice for green cleaning.

Recent innovations include multi purpose cleaning tablets, which blend limonene (to dissolve grime) and α/β-Pinene (for antimicrobial action) with citric acid and non-toxic surfactants. These tablets offer a pleasant odour, biodegradability, and powerful cleaning without harsh chemicals.

Camphor

Camphor, a naturally occurring terpenoid ketone from Cinnamomum camphora, has been used for centuries for medicinal and cleaning purposes. Beyond its traditional role as a moth repellent, camphor is now a key ingredient in surface cleaners, soaps, and pet shampoos, valued for its pungent odour, antimicrobial properties, and ability to combat mites.

Common Effects of Camphor

• Antimicrobial Activity: Camphor is highly effective against many forms of bacteria and fungi, making it a strong disinfectant. It sanitizes surfaces in household cleaners, removing harmful microbes from kitchens, bathrooms, and floors.
• Acaricidal Properties: Camphor and its structural analogs possess significant toxicity against house dust mites, making camphor an ideal ingredient in cleaning products designed to control allergens (⁴). In households with asthma patients, the use of miticides (such as products containing emamectin) can reduce exposure to dust mites (⁵). However, if an appropriate amount of camphor is added to the acaricide, camphor can soothe tracheal smooth muscles. This type of product may not only meet the needs of removing mites, but also improves asthma symptoms of patient in the household, thus increasing the added value of the product (⁶).
• Solvent Properties: Camphor is also an effective solvent for essential oils and active ingredients in cleaning products. This property enhances the overall performance of cleaners by helping to dissolve greases, oils, and other stubborn stains.

Eucalyptus Oil

Eucalyptus Oil is widely recognized for its strong antimicrobial properties, making it an effective choice for multi-surface cleaners and floor solutions. Eucalyptus oil is typically used to disinfect surfaces, combat bacteria, and promote freshness in household environments. It is a popular ingredient in formulations for all-purpose cleaners, disinfectants, and floor care products.

Recent studies have highlighted its utility beyond household cleaning. For instance, Tovey and McDonald (1997) demonstrated that eucalyptus oil can be effective in controlling house dust mites and reducing their allergens in clothing and bedding, suggesting that it may help in mitigating respiratory issues related to allergens ⁽⁷⁾. In addition to its role in controlling allergens, Batish et al. (2008) found that eucalyptus oil has significant natural pesticidal properties, making it a potential alternative to synthetic pesticides in various settings ⁽⁸⁾. These findings not only reinforce eucalyptus oil’s versatility but also emphasize its effectiveness in both home and environmental applications.

Figure 3. Common plant monomers from eucalyptus ©Foreverest

Comparison to Traditional Chemicals

These plant-derived substances are typically less toxic than synthetic chemicals and tend to be non-cumulative, which means they do not remain indefinitely in the environment or persist in the human body over time. They are also biodegradable, minimizing the risk of long-term environmental pollution.

Environmental and Health Benefits of Plant-Based Cleaners

Plant-based cleaning products are being adopted at an increasing rate. Plant-based and non-toxic options are gaining popularity as consumers grow increasingly aware of the dangers of traditional cleaning chemicals. Here we delve into the benefits associated with using plant-based cleaners, focusing on health and environmentally friendly outcomes.

Safer for Health

Safety: One of the best reasons to convert to natural cleaning products is because they are safe for humans. Many conventional cleaners include chemical culprits like ammonia, chlorine bleach, and phthalates that can irritate skin, worsen breathing issues, and lead to long-term health issues. In comparison, plant-based detergents typically contain natural components, minimizing the probability of exposure to such chemicals and making them a safer option, particularly in houses with kids, pets, or those with allergies and asthma.

In a study by Harley et al. (2021), participants who used green cleaning products registered sizable declines in harmful chemical compounds including 1,4-dioxane, chloroform, and benzene. At the same time, levels of some fragrance compounds rose, including the plant-derived beta-myrcene, which increased 221.5%, and synthetic musks such as celestolide (31.0%) and galaxolide (79.6%). Despite these increases, almost all participants (98%) believed that the green products worked just as well as their previous cleaners, and 90% said they would consider buying them again ⁽⁹⁾.

In addition to reducing exposure to toxic chemicals, plant-based products also minimize the formation of hazardous by-products. A study by Deeleepojananan and Grassian (2023) revealed that reactions between conventional bleach and terpene-containing cleaners can generate harmful chlorination and oxidation products, which accumulate on indoor surfaces. These by-products are a potential source of indoor air pollution, reinforcing the need to move towards non-toxic alternatives ⁽¹⁰⁾.

Biodegradability and Environmental Impact

Many plant-based cleaners are biodegradable, which also offers significant environmental benefits. As the cleaners originate from natural sources, they break down faster into non-harmful components compared to traditional cleaning products, minimizing the environmental load. On the other hand, numerous synthetic compounds present in commercial cleaners are non-biodegradable and linger in the ecosystem, causing integrative pollution.

Studies have shown that plant-based products are not only safer for human health but also gentler on the planet. For instance, Nørgaard et al. (2014) demonstrated that replacing conventional cleaning agents in office environments with plant terpenes led to reductions in reactive products produced from ozone-initiated reactions, highlighting the environmental safety aspect of plant cleaning agents ⁽¹¹⁾.

Reducing Chemical Waste

Plant-based cleaners also have a smaller environmental impact, as they reduce chemical waste. Since these items are usually biodegradable, they decompose into nonharmful by-products when they reach wastewater systems. This is in stark contrast to synthetic chemical cleaners, which can remain in the environment and also pose a serious threat to aquatic life and ecosystems. By opting for plant-based cleaners, consumers ease the overall chemical burden on water treatment plants and the potential for pollution.

Commercially Available Products and Innovations in the Market

The growing demand for plant-based cleaning products has led to a surge in innovation within the cleaning product industry. Many well-established brands are incorporating plant-derived substances in their products, providing consumers with effective and eco-friendly alternatives.

Popular Plant-Based Cleaning Products：

• Method All-Purpose Cleaner (Pineapple + Eucalyptus): This cleaner contains eucalyptus oil, known for its antimicrobial properties. Method emphasizes the use of biodegradable and non-toxic ingredients in its formulations.
• Seventh Generation Disinfecting Multi-Surface Cleaner (Lemon + Eucalyptus): Featuring eucalyptus oil, this cleaner is an EPA-approved disinfectant and is made with natural ingredients that are safe for use around children and pets.
• Pine-Sol Multi-Surface Cleaner (Original Scent): Pine-Sol’s original cleaner incorporates pine oil, which has natural antibacterial and deodorizing properties, making it effective for disinfecting various surfaces.
• Mrs. Meyer’s Clean Day Multi-Surface Cleaner (Lemon Verbena): Mrs. Meyer’s products are well-known for their natural ingredients, including essential oils. Their formulations are made with plant-based ingredients and are cruelty-free, making them a popular choice for eco-conscious consumers.

Market Trends and Innovations

The global volume market for natural household cleaners to grow 126 percent by 2028. The natural household cleaners market was valued at USD 6.97 billion in 2024, and is expected to grow at a compound A annual growth rate (CAGR) of 11.3% from 2025 to 2030., according to the Grand View Research. The growth is being propelled by a growing consumer inclination for cleaner and greener cleaning products.

Brands like Frosch, Seventh Generation, and Method are leading the way in making plant-based cleaners more accessible to a wider audience. They focus on developing products that perform well without the use of harsh chemicals, offering both cleaning power and environmental responsibility.

Challenges in the Industry

While the market for plant-based cleaners is growing, there are still challenges in widespread adoption. These include the higher cost of natural ingredients, the variability of natural substances that can affect product consistency, and the need for regulatory compliance to ensure safety and performance standards. However, as consumer demand increases and technology improves, the industry is expected to overcome these challenges and continue to grow.

Conclusion: The Future of Plant-Based Household Cleaners

Plant-based cleaning products are just one facet of a worldwide desire for more sustainable, health-conscious living. With this increasing awareness regarding synthetic chemicals in consumer products, more and more people realize that these can be harmful to both their health and the environment, finding an alternative in plant-based cleaners. These products have continued to evolve, and with an increasing market and demand, we can expect further innovations and improvements in natural cleaning solutions.

By choosing plant-based products, consumers can reduce their exposure to harmful chemicals, improve indoor air quality, and contribute to a healthier, more sustainable environment. With continued innovation and increasing consumer awareness, plant-based cleaners are poised to become the future of household cleaning.

References

1. Pandya, U., Doshi, A., & Sahay, N. (2017). Development of herbal disinfectants formulation for mopping households and its antibacterial activity. Natural Product Research, 31, 2665 – 2668. https://doi.org/10.1080/14786419.2017.1283491.
2. Mawire, P., Mozirandi, W., Heydenreich, M., Chi, G., & Mukanganyama, S. (2021). Isolation and Antimicrobial Activities of Phytochemicals from Parinari curatellifolia (Chrysobalanaceae). Advances in Pharmacological and Pharmaceutical Sciences, 2021. https://doi.org/10.1155/2021/8842629.
3. Ham, J., & Wells, J. (2011). Surface chemistry of a pine-oil cleaner and other terpene mixtures with ozone on vinyl flooring tiles. Chemosphere, 83(3), 327-33. https://doi.org/10.1016/j.chemosphere.2010.12.036.
4. Jeon, J., Yang, J., & Lee, H. (2014). Evaluation of the acaricidal toxicities of camphor and its structural analogues against house dust mites by the impregnated fabric disc method. Pest management science, 70(7), 1030-2. https://doi.org/10.1002/ps.3769.
5. Chen, M., Wu, Y., Yuan, S., Tang, M., Zhang, L., Chen, J., Li, L., Wu, J., Zhang, J., & Yin, Y. (2021). Allergic Rhinitis Improvement in Asthmatic Children After Using Acaricidal Bait: A Randomized, Double-Blind, Cross-Placebo Study. Frontiers in Pediatrics, 9, 709139. https://doi.org/10.3389/fped.2021.709139
6. Maíra M. Freitas, et al. (2021). Investigation of the relaxing effect of a camphor nanoemulsion on rat isolated trachea. Chemico-Biological Interactions, 348, 109656, https://doi.org/10.1016/j.cbi.2021.109656
7. Tovey, E., & McDonald, L. (1997). A simple washing procedure with eucalyptus oil for controlling house dust mites and their allergens in clothing and bedding. The Journal of Allergy and Clinical Immunology, 100(4), 464-6. https://doi.org/10.1016/S0091-6749(97)70136-2.
8. Batish, D., Singh, H., Kohli, R., & Kaur, S. (2008). Eucalyptus essential oil as a natural pesticide. Forest Ecology and Management, 256, 2166-2174. https://doi.org/10.1016/J.FORECO.2008.08.008.
9. Harley, K., Calderon, L., Nolan, J., Maddalena, R., Russell, M., Roman, K., Mayo-Burgos, S., Cabrera, J., Morga, N., & Bradman, A. (2021). Changes in Latina Women’s Exposure to Cleaning Chemicals Associated with Switching from Conventional to “Green” Household Cleaning Products: The LUCIR Intervention Study. Environmental Health Perspectives, 129. https://doi.org/10.1289/EHP8831.
10. Deeleepojananan, C., & Grassian, V. (2023). Gas-Phase and Surface-Initiated Reactions of Household Bleach and Terpene-Containing Cleaning Products Yield Chlorination and Oxidation Products Adsorbed onto Indoor Relevant Surfaces. Environmental Science & Technology, 57, 20699 – 20707. https://doi.org/10.1021/acs.est.3c06656.
11. Nørgaard, A., Kofoed-Sørensen, V., Mandin, C., Ventura, G., Mabilia, R., Perreca, E., Cattaneo, A., Spinazzé, A., Mihucz, V., Szigeti, T., De Kluizenaar, Y., Cornelissen, H., Trantallidi, M., Carrer, P., Sakellaris, I., Bartzis, J., & Wolkoff, P. (2014). Ozone-initiated terpene reaction products in five European offices: replacement of a floor cleaning agent. Environmental Science & Technology, 48(22), 13331-9. https://doi.org/10.1021/es504106j.