Seed Oils Left Your Kitchen. Check Your Lotion. - Cohld

Seed Oils Left Your Kitchen. Check Your Lotion.

The same industrial seed oils the food world is abandoning are still the base of most lotions on the shelf. Here's how the swap happened, and what your skin was using before it.

Microplastics Are in Your Testicles. Now What? Reading Seed Oils Left Your Kitchen. Check Your Lotion. 6 minutes

Flip over the lotion you used this morning. Somewhere in the ingredient list, probably in the first five lines, you'll find something like helianthus annuus seed oil or glycine soja oil.

That's sunflower oil and soybean oil. The same oils half the country is now paying extra to keep out of their french fries.

Nobody asked you about this swap. It happened in your kitchen and your bathroom during the same few decades, for the same reason, and only one of those rooms has noticed.

The kitchen already figured it out

For most of American history, the default cooking fat was tallow. Rendered beef fat. McDonald's fried in it until 1990. Your great-grandmother kept a can of it by the stove.

Then it got replaced. Not because something better came along, but because something cheaper did. Industrial seed oils cost a fraction of animal fat to produce at scale, and a marketing apparatus grew up around justifying the substitution after the fact.

That story is now unwinding in public. Whole Foods' Trends Council named beef tallow its top food trend for 2026. Sales of tallow-containing food products passed $1.1 billion this year, up roughly 275% in three years. Steak 'n Shake converted every fryer in the company back to tallow. Searches for beef tallow are up 267%.

Whatever you think of the debate around eating seed oils, the direction of travel is obvious: people looked at a refined industrial ingredient that quietly replaced a traditional one, and a lot of them decided they wanted the original back.

Here's the part almost nobody has gotten to yet.

The same swap happened in your bathroom

Walk the skincare aisle and read labels. Most mainstream lotions and creams are built on the same industrial crop oils: sunflower, safflower, soybean, canola, sometimes corn. Usually refined, bleached, and deodorized before they go in the bottle, because the crude versions don't smell or store well.

Why are they there? Same reason they ended up in the fryer. They're cheap, they're abundant, they're shelf-stable once refined, and they're neutral enough to build a formula around. A drum of refined sunflower oil costs a manufacturer a fraction of what quality animal fat or premium plant butters cost.

Before that swap, people put animal fat on their skin for the same reason they cooked with it: it was what worked, and it was what they had. Tallow balms for cracked hands. Lanolin. Lard-based salves. The oldest known skincare recipes are animal-fat based. This was the default for a very long time.

Then the same substitution economics that changed your fryer changed your lotion, and nobody sent a memo.

What we're arguing and what we're not

Let's be straight about the claim, because this is where most brands in our corner of the internet start yelling.

We are not going to tell you sunflower oil on your skin will ruin your face. That's not the argument, and the people making that argument are usually selling something with a skull on the label.

The argument is simpler:

1. You were switched without being asked. The base of your moisturizer was chosen for the manufacturer's cost structure, not for your skin. That alone is worth knowing.

2. Composition matters. Your skin's own oil, sebum, is mostly saturated and monounsaturated fat. So is tallow: roughly half saturated, around 40% monounsaturated, only a few percent polyunsaturated. Seed oils are the inverse, running 50 to 70% polyunsaturated. When you put tallow on your skin, you're applying something structurally close to what your skin already makes.

3. Stability matters. Polyunsaturated fats oxidize easily. That's chemistry, not marketing. It's why seed oils have to be heavily refined for shelf life, and why tallow keeps for months with nothing added to it. A fat that resists oxidation doesn't need a preservative system built around it.

4. Simplicity is checkable. Grass-fed tallow is one ingredient. You can verify everything about it: the animal, the pasture, the rendering. A refined seed-oil lotion with 30 ingredients asks you to trust a supply chain you can't see. We'd rather hand you a label you can read in one breath.

That's the whole case. No panic required.

How to read a lotion label in 20 seconds

Whether or not you ever buy anything from us, here's the label check that makes you harder to fool:

  • First five ingredients are the product. Everything after that is small. If the base is helianthus annuus, carthamus tinctorius, glycine soja, or canola, you're holding a seed-oil lotion, whatever the front of the bottle says about botanicals.
  • "Natural" covers everything. Sunflower oil is natural. So is petroleum, technically. The word tells you nothing; the Latin does.
  • Count the ingredients. More ingredients means more refining steps, more preservative load, and more things to react to. Short lists aren't automatically better, but they're honest by default. There's nowhere to hide.
  • Look for the fat's source. "Tallow" alone doesn't tell you how the animal was raised. Grass-fed matters for the fat-soluble vitamin content (A, D, E, K) that lives in the fat itself.

What we make instead

Our tallow cream is grass-fed tallow, rendered and whipped, with a short list of supporting ingredients you can pronounce on the first try. It was built for the hands that take a beating: post-shave, post-yardwork, cracked knuckles in January. It absorbs because it resembles what your skin produces on its own.

The kitchen already corrected course. Steak 'n Shake got there. Your bathroom cabinet is running a few years behind, which means right now you get to be early.

[Shop the tallow cream →]