There are a lot of dramatic things being said about tallow on the internet.
Some of them are useful.
Some of them make me cringe.
Tallow is not magic.
It does not need to be described as “bioidentical” to your skin.
It does not need to cure every skin condition.
And it does not become superior skincare simply because people used animal fat a hundred years ago.
It is, however, an exceptionally useful fat for skincare.
And that is interesting enough.
What is tallow?
Tallow is rendered animal fat, most commonly from cattle.
Rendering simply means gently heating raw fat so the usable fat can be separated from water, connective tissue and other solids.
Once properly rendered and filtered, the result is a stable, semi-solid fat that can be used in cooking, soapmaking, candles and skincare.
For FATSKN, we use grass-finished beef suet sourced from Alberta cattle.
Suet is the firm fat found around the kidneys and certain internal organs.
We keep it frozen until we're ready to render it, render it once using a dry process, filter it and formulate from there.
The goal isn't to process the ingredient until there is no trace of where it came from.
The goal is to start with excellent fat and handle it carefully.
Why put beef fat on your skin?
This question sounds much stranger than it actually is.
Skin likes lipids.
Your outer skin barrier isn't just a wall of dead cells. It contains an organized lipid structure that helps keep water inside your body and irritating things outside.
That is part of what allows skin to stay soft, flexible and comfortable.
When skin gets dry, stripped or exposed to harsh environmental conditions, adding lipids topically can help soften the surface and reduce water loss.
Tallow happens to be a very good way of doing that.
What is tallow made of?
Like other animal fats, tallow is primarily made up of triglycerides containing fatty acids.
The major fatty acids in beef tallow typically include:
- oleic acid
- palmitic acid
- stearic acid
The exact proportions vary depending on the animal, diet, tissue and processing.
You don't need to memorize a fatty-acid chart to understand why this matters.
The practical takeaway is:
tallow is a rich, substantial fat.
Put it on skin and it creates a lipid layer that softens the surface and helps slow moisture loss.
That's the job.
Does tallow hydrate skin?
This is one of those skincare language problems.
Technically, water hydrates.
Fat doesn't add water to your skin.
What fat can do is help keep the water that's already there from escaping so quickly.
So if your skin is dry, one useful combination is:
water + lipids.
This is why I love applying richer skincare after bathing or washing.
Your skin has just been exposed to water.
Then you put something substantial over it to help keep that water there.
Very simple.
Is tallow the same as human sebum?
No.
And I think this claim gets repeated because it sounds good.
Human sebum and beef tallow share some types of fatty acids, but they are not chemically identical.
Human skin is also vastly more complex than a jar of rendered fat.
Tallow does not need to perfectly mimic your skin to be useful.
Olive oil isn't identical to your skin.
Jojoba isn't identical to your skin.
Shea butter isn't identical to your skin.
We use cosmetic ingredients because of what they do, not because they secretly become human tissue.
Why does tallow feel so different from lotion?
Because most lotions contain a lot of water.
A conventional body lotion might be mostly water with smaller amounts of oils, emulsifiers, humectants and other ingredients.
An anhydrous tallow balm contains no added water.
That means you're getting a much richer layer of fat on the skin.
For very dry skin, that can feel completely different.
You put on a light lotion and twenty minutes later your skin wants more.
You put on something richer and your skin still feels soft hours later.
That's usually the difference people are noticing.
Does that mean tallow balm is always better than lotion?
No.
This is where ingredient tribalism gets annoying.
Different products do different jobs.
A lotion can be fantastic when you want something light and easy to spread.
A cream can give you water and oils together.
A balm can give you a more substantial protective layer.
The best choice depends on:
your skin
the season
where you're using it
how dry you are
and what texture you actually enjoy
There is no skincare trophy for choosing the heaviest possible product.
Who is tallow especially good for?
Tallow tends to make the most sense for people who like rich moisturization.
That may include people with:
- dry skin
- rough skin
- tight-feeling skin
- winter skin
- hands that are constantly being washed
- dry elbows and knees
- cracked-feeling feet
- skin exposed to cold, wind or very dry indoor air
It can also work beautifully as facial skincare for people whose face prefers a richer moisturizer.
But that doesn't mean every face will love it.
Can you use tallow on your face?
Yes.
We do.
But start with less than you think.
Tallow-based skincare can be very rich.
You do not need to apply enough to look glazed.
Warm a small amount between your fingers and spread it over the skin.
If your face still feels greasy hours later, use less next time.
Skincare doesn't become more effective because you applied it with a serving spoon.
What about oily or acne-prone skin?
This is where I don't like absolutes.
You'll hear:
And you'll hear:
Never put animal fat on acne-prone skin.
Neither is useful.
Acne and congestion are affected by far more than whether a moisturizer contains one particular fat.
The complete formula matters.
How much you use matters.
Your skin matters.
Your cleansing routine matters.
Your other skincare matters.
Some acne-prone people love rich moisturizers.
Others clog easily and prefer much lighter products.
If you're prone to congestion, introduce tallow slowly and pay attention.
Your skin gets the deciding vote.
What about sensitive skin?
Simple formulas can be useful when your skin reacts easily because there are fewer variables to troubleshoot.
But “natural” does not automatically mean non-irritating.
Essential oils are natural.
Botanical extracts are natural.
Beeswax is natural.
Tallow is natural.
Any ingredient can be something your individual skin doesn't like.
For very sensitive skin, I generally prefer starting simple and avoiding unnecessary fragrance.
Can you use tallow on eczema-prone skin?
Very dry eczema-prone skin often benefits from rich moisturization.
A tallow-based moisturizer can be one way to provide that.
But I would distinguish very clearly between:
moisturizing eczema-prone skin
and
treating eczema.
Those are not the same claim.
If skin is chronically inflamed, infected, weeping, painful or otherwise not behaving like ordinary dryness, that's beyond choosing a moisturizer.
Is pure tallow best?
Not necessarily.
This is probably one of the biggest misconceptions around tallow skincare.
People hear:
100% tallow
and automatically assume that must be the highest-quality version.
But formulation is not adulteration.
It's formulation.
Pure tallow is naturally firm.
Adding something like jojoba can change:
- spreadability
- texture
- glide
- firmness
- how the product behaves at different temperatures
- how it feels when you actually put it on your body
We formulate tallow because we want the finished product to work well.
Not because we're trying to win a purity contest.
Why does FATSKN use jojoba with tallow?
Jojoba is technically a liquid wax ester rather than a typical plant oil.
It is extremely useful in skincare because it spreads beautifully and helps soften the texture of richer fats.
Tallow gives us body and richness.
Jojoba gives us movement and glide.
Together, they make a formula that is much easier and nicer to use than a hard jar of straight rendered fat.
Minimal skincare doesn't have to mean one ingredient.
It means every ingredient should have a reason for being there.
What about grass-fed vs grass-finished tallow?
These aren't exactly the same thing.
Cattle can eat grass for much of their lives and still be grain-finished.
Grass-finished generally refers to cattle that remain forage-fed through finishing.
We use grass-finished Alberta suet because sourcing matters to us.
Where the animal came from.
How the fat was handled.
What tissue we're using.
How fresh it is.
How it was stored.
How it was rendered.
Those are all part of ingredient quality.
I don't think we need to claim that grass-finished tallow possesses magical topical powers to care about where our ingredients come from.
Why suet?
Not all beef fat is the same.
Suet is the firm internal fat surrounding the kidneys.
It produces a hard, clean tallow that we love working with for skincare.
Could you render ordinary beef trim fat?
Absolutely.
We specifically choose suet because it gives us the raw material and consistency we want.
Again, this is where cosmetic manufacturing is less glamorous than Instagram makes it look.
Good skincare starts with:
sourcing
temperature
storage
sanitation
rendering
filtration
batch consistency
The boring stuff.
The boring stuff is usually important.
Why does some tallow smell like beef?
Raw material and processing matter enormously here.
Tallow that has been poorly handled or overheated can develop a stronger cooked smell.
Properly sourced, carefully rendered and well-filtered tallow should not make you smell like dinner.
We don't aggressively deodorize our tallow into a completely anonymous industrial fat.
So there may still be some natural character to it.
That's fine.
There is a difference between:
this smells faintly like the ingredients it contains
and
this smells rancid or spoiled.
Does tallow go bad?
Eventually, yes.
Fat oxidizes.
Heat, oxygen and light can speed that process up.
An anhydrous tallow balm is generally much less hospitable to microbial growth than a water-containing product, but it still isn't immortal.
Store your skincare reasonably:
keep it closed
keep it away from extreme heat
don't introduce water into the jar
use clean hands
pay attention if the smell suddenly changes
Natural does not mean exempt from chemistry.
What about vitamins in tallow?
You will see huge claims online about tallow being packed with vitamins A, D, E and K.
I don't make tallow's case that way.
The nutrient composition of animal fat varies depending on the animal, tissue, diet and processing.
And even if a nutrient is present in a raw material, that doesn't automatically tell us the amount in a finished cosmetic or what effect it's having topically.
Tallow is already a useful skincare fat.
I don't need to turn it into a topical multivitamin to justify using it.
Is tallow an “active”?
I don't really think of it that way.
This is where modern skincare has trained us to believe that every product needs to be doing something dramatic.
Resurfacing.
Brightening.
Peeling.
Stimulating.
Correcting.
Exfoliating.
Sometimes I just want the product to keep my skin comfortable.
That is not a small job.
Your skin is exposed all day to:
cold
heat
wind
water
soap
friction
clothing
sunlight
dry indoor air
A rich moisturizer can make that interface a lot more comfortable.
And that is where tallow fits for me
I don't believe your skincare routine should carry the entire responsibility for your skin.
Skin is living tissue.
It is affected by:
food
protein
minerals
sleep
light
hormones
circulation
stress
environment
I care about all of that.
Probably more than I care about which serum someone is using.
But I also believe skin deserves topical support when it needs it.
Especially when it's:
dry
tight
windburned
wintered
washed constantly
growing during pregnancy
or simply asking for more fat
Those ideas are not contradictory.
You can believe skin health starts much deeper than a jar of cream...
and still make a very good jar of cream.
Why we keep coming back to tallow
Because it does the boring job extremely well.
It is rich.
It is simple.
It makes dry skin feel good.
It combines beautifully with the other ingredients we use.
We can source it locally.
We can process it ourselves.
And it lets us formulate skincare that doesn't need to become a twelve-step routine.
That's ultimately why FATSKN exists.
Not because tallow is magic.
Because sometimes the simplest thing works beautifully.
If you want to try it, Purist Whipped Body Butter is the simplest place to start — unscented, three ingredients.
More in this guide
Using it
- Tallow Balm vs Tallow Cream vs Lotion: What’s the Difference?
- Can You Use Tallow on Your Face?
- Does Tallow Skincare Go Bad? How to Store It Properly
- Why Does Some Tallow Skincare Smell Like Beef?
- Tallow vs Shea Butter vs Coconut Oil vs Conventional Moisturizer
Skin types
- Tallow for Dry Skin: Why Richer Moisturizers Can Feel So Different
- Tallow for Sensitive Skin: Is Simpler Better?
- Can You Use Tallow on Eczema-Prone Skin?
- Tallow for Acne-Prone Skin: A More Nuanced Answer
- Does Tallow Clog Pores?
How it’s made