Hair salons in Europe are dumping their clippings into forests and it’s miraculous

Deers don’t like it but trees absolutely love it.

By Heather Wake

Every day, hair salons sweep countless hair clippings off their floors and toss them into the trash without much thought. But in parts of France, Belgium, and Luxembourg, those discarded strands are finding an entirely different purpose: helping forests grow.

French recycling company Capillum has developed a surprisingly effective way to reuse human hair by turning it into biodegradable mulch that protects young trees from hungry deer. The company collects hair from participating salons and transforms it into flattened fiber sheets that can be wrapped around vulnerable saplings.

What sounds unusual at first actually solves several environmental problems at once.

A second life for salon clippings

Hair salons generate an enormous amount of waste each year. Most clippings are simply thrown away, even though human hair is remarkably durable because it is made largely from keratin, a fibrous protein that breaks down slowly over time.

Capillum saw potential in a material most people never think twice about. The company accepts hair regardless of texture, length, color, or whether it has been dyed. Once gathered, the hair is fed into a machine that minces everything together into dense fiber sheets that can be laid around the base of trees. The process transforms something typically viewed as garbage into a practical tool for conservation efforts.

Why young trees need protection

Many forests depend on saplings surviving long enough to mature and replenish the ecosystem. However, young trees often struggle in areas with large deer populations. Deer are known to chew on bark, especially during seasons when food is scarce. Because saplings have thin bark and delicate trunks, even small amounts of damage can stunt their growth or kill them entirely.

Foresters have historically relied on plastic fencing and tree guards to keep deer away. While those barriers can work well, they also create waste and require maintenance over time.

Capillum’s recycled hair mats offer another approach. The scent of human hair naturally discourages deer from getting too close to the trees, steering them toward other vegetation instead. The method protects saplings without harming wildlife.

A biodegradable alternative to plastic

Unlike plastic guards, the hair fibers gradually decompose and return nutrients to the soil. As the keratin breaks down, it releases nitrogen and amino acids that can support plant growth. That nutrient-rich quality is one reason some gardeners have long experimented with placing hair into compost piles or using it directly in garden beds. Knowing this, Capillum sells its eco-friendly hair mulch to home gardeners interested in more sustainable growing methods. 

Human hair is more useful than most people realize (snip-MORE)

Surely there are people here in the US, in our profit-driven society, who could do this recycling, as well.