Why Tallow is the Original Zero Waste Skincare

Zero waste beauty is having a moment. Brands are rushing to claim sustainability credentials — recycled packaging, carbon offsets, plant-based formulations. But before zero waste was a marketing term, it was simply how people lived. And tallow was at the centre of it.

For centuries, rendering fat from animals raised for food was not a choice — it was common sense. Nothing was wasted. The fat that would otherwise be discarded became candles, soap, skincare and cooking fat. Every part of the animal had a purpose. That nose-to-tail philosophy wasn’t idealism — it was necessity. And it worked.

Somewhere along the way, we forgot it. The modern food industry came to regard animal fat as a byproduct — something to discard rather than use. Meanwhile the beauty industry replaced it with ingredients most people can’t pronounce, preservation systems designed to extend shelf life at any cost, and packaging designed to disguise what’s inside. The result is a skincare industry producing 120 billion units of packaging every year — most of which ends up in landfill.

Tallow asks a different question. What if the fat that would otherwise go to landfill became something genuinely valuable? Cattle are not raised for tallow. They never have been. Tallow is a byproduct of the meat industry — fat that exists regardless of whether it’s used. Choosing to render and use it in skincare doesn’t create demand for more animals — it simply gives meaning to something that would otherwise be discarded. That’s the circular economy in its most honest form.

I render tallow in small batches from grass-fed New Zealand beef — a slow process using only heat and filtration. No chemical solvents. No complex processing. The fat is melted down slowly, filtered clean and left to set. Just fat, heat and time — the same process that has been used for centuries, unchanged because it doesn’t need to be. The result is a pure, stable ingredient that needs no preservatives to stay shelf stable, no additives to perform and nothing hidden in the process. Small batches mean less waste, fresher product and nothing unnecessary. Made when it’s needed, for skin that deserves better than the alternative.

Zero waste doesn’t end with the ingredient. Soaps come in paper and cardstock — nothing unnecessary. And every skincare product I make comes in glass — reusable, recyclable and infinitely better than the plastic that dominates conventional skincare. No microplastics leaching into formulations. No single-use plastic ending up in landfill or waterways. And when the product is used up, the jar goes back into the cycle — not into the ground.

When tallow washes off your skin it returns to the environment as it arrived — a natural fat that biodegrades completely, leaving no toxic residue and no microplastics in the ecosystem. Conventional skincare with synthetic emulsifiers, preservatives and fragrance compounds doesn’t offer the same reassurance. What goes down the drain matters. Tallow has nothing to hide.

Not all tallow is equal. Grass-fed farming supports regenerative agriculture — healthier soils, improved biodiversity, animals raised the way they were meant to be raised. A farming system that works with the land rather than extracting from it. Choosing grass-fed tallow isn’t just better for skin — it’s better for the farms, the animals and the soil beneath them.

It’s also worth saying out loud: plant-based doesn’t automatically mean sustainable. Palm oil has driven some of the worst deforestation on the planet. Argan oil has real labour concerns behind it. Even jojoba needs significant water to grow. A 2025 study found that grass-fed tallow from regenerative farms can carry lower carbon emissions than some of the plant oils the beauty industry holds up as the clean alternative. The sustainability story is more complicated than the marketing suggests — and tallow, sourced well, stands up to scrutiny.

Tallow isn’t the only upcycled ingredient at Fatglow. Red velvet oil — extracted from tomato seeds that would otherwise be discarded during food processing — follows exactly the same logic. Waste turned into something extraordinary. You can read more about it in my piece on red velvet oil.

Zero waste isn’t something I arrived at through marketing. It’s something I came back to — the way skincare was always made, before the industry forgot.

Where tallow becomes botanical luxury.