As a plant extract supplier, I’ve spent the last decade standing in processing facilities, testing source crops, and problem-solving the small, daily tradeoffs that come with turning wild herbs and farmed botanicals into the ingredients that make everything from skincare serums to dietary supplements work. For years, I assumed our biggest environmental impact came from the amount of water we use to wash raw plant material or the energy required to run our extraction tanks. But a few years ago, I joined a panel with a local organic farm cooperative, where a farmer who’d supplied us for five years called out, “Your extract orders don’t exist in a vacuum—every pound of rosemary you source ties back to how we till our soil, how we plan crop rotations, and what gets left in the fields after harvest.” That conversation stuck with me, and over the years, it’s pushed me to dig into the full, often overlooked environmental footprint of plant extract production, from the farm where the raw material grows to the byproducts we dispose of when processing is done. What I’ve learned is that it’s not just one big impact—it’s a web of small, interconnected choices, and while the industry has real challenges, there are actionable, science-backed steps that suppliers and farms can take to reduce harm without cutting corners on quality. Plant Extract
Let’s start with the most foundational link in the supply chain: raw material sourcing, because 80% of a plant extract’s environmental footprint is actually determined before it ever reaches our processing facility, according to a 2022 study in the Journal of Cleaner Production. A lot of new suppliers will cut costs by sourcing conventional, industrial-farmed botanicals, which are grown with synthetic fertilizers and monocropping. Monocropping—growing the same crop year after year on the same plot—depletes soil nutrients, leading to more synthetic fertilizers being applied, which run off into nearby waterways and cause harmful algal blooms. For example, one of our best-selling extracts is pure chamomile, and a decade ago, we were sourcing from a farm in central California that used synthetic nitrogen fertilizers. Testing their runoff showed nitrates at levels 15 times the legal limit for drinking water, and that had downstream effects on local salmon populations. That’s not just a farm problem—it’s an extract supplier problem, because when we choose that source, we’re effectively outsourcing that harm to someone else. Conventional farming also relies heavily on water for irrigation, especially in arid regions like the Mediterranean or Southwestern U.S., where many medicinal and aromatic plants grow. A 2021 study by the International Water Management Institute found that producing one kilogram of dried lavender (a common extract source) uses over 2,000 liters of water if grown conventionally, compared to just 600 liters for organic, rainfed lavender. That’s a staggering difference, and it’s one that every supplier has to account for when they calculate their actual environmental impact.
But sourcing isn’t just about choosing organic—it’s about what we don’t source at all. Overharvesting wild plants is another huge, often underdiscussed impact. For example, we used to source echinacea from wild populations in the Rocky Mountains, until a local conservation group pointed out that our annual harvests were reducing root systems by 12% each year, which hurt local pollinators that rely on echinacea nectar. Many rare plant species used in extracts, like goldenseal or ginseng, are now at risk due to unregulated wild harvesting, and that doesn’t just hurt biodiversity—it disrupts entire ecosystems. That’s why we shifted 100% of our echinacea sourcing to certified organic, farmed stands within three years, a choice that actually made our extract more consistent in quality too, because wild plants can have variable potency depending on weather conditions.
Once the raw material arrives at our processing facility, the next layer of environmental impact comes from the extraction process itself, and this is an area where different suppliers can have wildly different footprints. The most common methods are solvent extraction (using chemicals like hexane or ethanol), supercritical CO2 extraction, and steam distillation, and each has pros and cons. Solvent extraction is often the cheapest, but leftover chemical residues can contaminate water runoff, and the solvents themselves are volatile organic compounds (VOCs) that release into the air if not properly captured. When I first opened our facility, we used a small amount of hexane extraction for a less potent mint extract, and we didn’t have the air filtration system we should have—until the local air quality board flagged our emissions as a minor concern. That was a wake-up call. Now, even for our budget-friendly lines, we use food-grade ethanol extraction with closed-loop systems that capture and reuse 95% of the ethanol, so almost none is released into the atmosphere. Supercritical CO2 is more energy-intensive upfront, but it doesn’t leave residual chemicals, and the CO2 is captured from industrial emissions (we source it from a nearby fertilizer plant) so it’s not adding new carbon to the atmosphere.
Then there’s the amount of energy used in processing. Steam distillation, which is used for essential oils (a type of plant extract), requires a lot of heat to boil water and produce steam that pulls the oils out of plant material. A 2020 study in the Journal of Environmental Management found that steam distillation can account for up to 70% of an extract’s total carbon footprint. That’s why we installed a biomass boiler at our facility three years ago, which runs on agricultural waste from local farms—like chamomile stems and lavender stalks that would otherwise be burned or sent to landfills. It cut our energy-related carbon emissions by 45%, and it also gave us a way to use the byproducts we were previously throwing away. Which leads me to the next big impact: waste. Most plant extract producers leave behind tons of plant biomass after extraction—for every kilogram of dried plant we process, we end up with about 1.5 kilograms of wet pulp, and most of it goes to landfills, where it decomposes and releases methane, a greenhouse gas 25 times more potent than carbon dioxide.
We used to send all our wet pulp to a local landfill, until we started working with a team of agricultural scientists at a nearby university. Now, we dry most of the pulp and sell it as organic livestock feed for local goat and sheep farms—goats love the leftover protein-rich pulp from aloe and chamomile, and it’s a great alternative to conventional grain feed. We also partner with a local composting collective to process the pulp that isn’t used for feed, and that compost is sold back to organic farms to improve their soil health. In fact, last year we repurposed 82% of our processing byproducts, which turned a liability into an asset, and it cut our landfill waste by 90%. That’s not just good for the environment—it’s good for business too, because it reduces our waste disposal costs and lets us market our extracts as circular economy products.
Another less talked-about impact is transportation, because plant extracts are often sourced from one country, processed in another, and sold globally. For example, a lot of vanilla extract is made from beans grown in Madagascar, processed in Europe, and then shipped to North America and Asia, which adds thousands of miles of transport and significant carbon emissions. A 2019 study in Transportation Research Part D found that the carbon footprint of a plant extract can be 30% higher from long-haul shipping than from all other steps combined. That’s why we’ve prioritized local sourcing for 75% of our raw materials—we work with 12 certified organic farms within a 200-mile radius, so the plants only travel a few hours to our facility, not thousands of miles. For the ingredients we can’t source locally (like ginger, which needs a warmer climate), we work with fair-trade farms in small-batch operations in places like Peru, where farmers use sustainable growing practices, and we ship the extracts in bulk to our customers, instead of small individual bottles, to reduce packaging waste and transport emissions.
Now, I’m not saying that plant extract production is inherently bad for the environment—far from it. The extracts we make replace synthetic chemicals in so many products: the natural preservative we developed from rosemary cuts the need for synthetic parabens in skincare, and our turmeric extract is used in dietary supplements that reduce inflammation without the side effects of pharmaceutical drugs. But it’s easy for suppliers like me to hide behind vague claims like “sustainable” or “organic” without diving into the real, day-to-day impacts. For example, a lot of suppliers will label their extracts as “organic” because the raw material is grown organically, but they’ll still use high-energy extraction methods or send all their byproducts to landfills, so the overall footprint is actually much higher than it needs to be.
Over the years, I’ve seen the industry make real progress. More farms are adopting regenerative agriculture practices—like cover cropping and no-till farming—that build soil health and reduce water use. More suppliers are investing in closed-loop extraction systems and biomass energy. But there’s still a long way to go. Too many small suppliers can’t afford the equipment to switch to more sustainable processes, and too many large corporations prioritize cost over environmental impact when choosing extract suppliers.
That’s why we’ve made it our mission to be transparent about our own impacts. Last year, we published our first full sustainability report, breaking down our carbon footprint, water use, and waste diversion rates, and we invite all our customers to audit our facility anytime. We also partner with a non-profit that provides grants to small organic farms to help them adopt sustainable harvesting practices, so we’re not just improving our own operations—we’re lifting up the entire supply chain.
At the end of the day, every choice a plant extract supplier makes matters. It’s choosing to source from a farm that uses cover crops instead of synthetic fertilizers. It’s choosing closed-loop ethanol extraction instead of hexane. It’s choosing to repurpose byproducts instead of sending them to landfills. If you’re a brand looking for plant extracts that don’t carry a hidden environmental footprint, we’d love to talk. We can walk you through our sourcing practices, our processing methods, and our commitment to reducing harm at every step.
If you’d like to learn more about how we can support your product goals while working together to minimize environmental impact, feel free to reach out to our sales team to discuss your specific needs. We’re always happy to provide detailed specifications, sustainability data, and answer any questions you have.
Cosmetic Raw Materials References
- Journal of Cleaner Production. (2022). Lifecycle assessment of botanical extracts: Mapping hotspots for environmental improvement.
- International Water Management Institute. (2021). Water footprint of aromatic and medicinal crop production.
- Journal of Environmental Management. (2020). Carbon footprint reduction in steam distillation of essential oils: Case study of lavender processing.
- Transportation Research Part D. (2019). Global supply chain emissions of plant-based ingredients for consumer products.
Xi’an Tobrand Group Inc.
As one of the most professional plant extract manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to buy the best plant extract for sale here from our factory. Good service and reasonable price are available.
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