Three popular single-ingredient moisturisers, three quite different fats. What each one is actually good at, and where each one falls down.
All three get recommended as a do-everything natural moisturiser. All three work for some people and not others, and the reasons are reasonably concrete once you look at what they are made of. We sell one of the three, so read this with that in mind, and check the claims yourself.
Tallow is rendered fat from cattle. Roughly 40 to 50 per cent saturated, 40 to 50 per cent monounsaturated, and only a small fraction polyunsaturated. Solid at room temperature, softens at body heat.
Shea butter is pressed from the nut of the African shea tree. Around 40 to 45 per cent stearic acid and a similar amount of oleic acid, plus an unusually high unsaponifiable fraction, which is the portion that does not behave like a simple fat. Solid and grainy at room temperature.
Coconut oil is pressed from coconut flesh. Over 80 per cent saturated, but the striking thing is the chain length: it is dominated by lauric acid, a medium-chain fat that barely appears in human skin. Solid below about 24 degrees, liquid above.
This is where they genuinely diverge. Human sebum is largely oleic, palmitic and stearic acid, with a sizeable fraction of sapienic acid that is unique to us.
Tallow lines up closely on the first three. Shea butter is respectable on stearic and oleic but has essentially no palmitic. Coconut oil, dominated by lauric acid, is the least similar of the three by a wide margin.
Whether this matters as much as tallow advocates claim is honestly debatable. Skin does not chemically verify a lipid before absorbing it. But it is a reasonable explanation for a consistent pattern of user reports about absorption, and it is a real difference rather than a marketing one.
The comedogenic scale runs 0 to 5 and rates how likely an ingredient is to block pores. Commonly cited figures put tallow at 2, shea butter at 0 to 2, and coconut oil at 4.
An important caveat: this scale is an informal legacy of rabbit-ear studies from decades ago. It is not a regulated standard, sources disagree, and a rating for a raw ingredient does not reliably predict how a finished formula behaves on a human face. Treat it as a rough signal, not a verdict.
The coconut oil figure is the one with the most anecdotal support behind it. It is a genuinely common complaint among people with acne-prone skin, and it is why coconut oil has quietly fallen out of favour as a facial moisturiser even as it stays popular for hair and body.
How readily a fat goes rancid comes down to double bonds. Fewer double bonds, more stable.
Coconut oil is the most stable of the three by this measure and has a very long shelf life. Tallow is close behind. Shea butter sits slightly lower because of its higher oleic content, though it is still far more stable than any seed oil.
All three are stable enough not to need a preservative in an anhydrous product, which is the practical point. None of them will oxidise on your skin the way a sunflower-oil-based cream can.
Shea butter is the most obviously rich and the slowest to sink in. It also has a tendency to go grainy if it is melted and cooled carelessly, which is a manufacturing problem rather than a quality one, but it is annoying.
Coconut oil is the lightest-feeling and melts on contact, but it has a habit of sitting on the surface rather than absorbing, and it goes liquid in an Australian summer, which makes it messy.
Tallow sits between them. Firm in the jar, turns to oil in your fingers, and absorbs faster than shea. Whipped tallow feels lighter but generally contains more air and less product per jar, which is worth knowing when you compare prices by weight.
Tallow from pasture-raised cattle carries fat-soluble vitamins A, D, E and K. Shea butter's real distinction is its unsaponifiable fraction, which is high by the standards of plant fats and contains compounds that have attracted genuine research interest. Coconut oil is comparatively low in both.
Do not over-weight this. The quantities involved in a thin layer of moisturiser are small, and claims about vitamin content doing dramatic things to skin generally run well ahead of the evidence.
Tallow is an animal product, which rules it out for a lot of people, full stop. It is also a by-product of an existing meat supply chain rather than a driver of it. Grass-fed and grain-finished tallow are meaningfully different in colour and composition, so sourcing matters.
Shea butter is plant-based and much of it is produced by women's cooperatives in West Africa, which is a genuine social good when the supply chain is fair. It is also the most likely of the three to be adulterated or heavily refined by the time it reaches a jar.
Coconut oil is plant-based, cheap, and available everywhere. Monoculture and land-use concerns apply, as they do to most tropical crops.
On cost per gram, coconut oil is by far the cheapest, shea butter is mid-range, and well-rendered grass-fed tallow is the most expensive, mostly because rendering it properly is slow and labour-intensive.
If your skin is dry and reactive and you have not got on with plant-oil creams, tallow is the one most worth trying. If you want a plant-based option and do not mind a heavier feel, shea butter is the sensible pick. If you want something cheap for hair, cuticles or body, coconut oil is fine, and you should probably keep it off your face if you break out easily.
None of them is a treatment for anything. They are moisturisers, and the best one is the one you will actually use twice a day.
AusTallow is a cosmetic moisturiser. It is not a therapeutic good and it is not intended to diagnose, treat, cure or prevent any disease or skin condition. Information on this page is general in nature. If you have a diagnosed skin condition, speak to your GP or dermatologist.
100% Australian grass-fed tallow, Australian beeswax, Australian extra-virgin olive oil. Nothing else, and 60 days to change your mind.
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