Murumuru Butter

Overview

Murumuru butter comes from the seeds of the murumuru palm (Astrocaryum murumuru), a wild Amazonian palm whose seeds are still mostly harvested by traditional communities in Brazil. It comes as a cream-colored, soft-but-firm butter with a very mild, slightly nutty smell. Melting point is around 33 C — well below body temperature, so it softens easily in the hand.

Most cosmetic-grade murumuru is filtered but not heavily refined, keeping the natural pale yellow tint and faint scent. Raw murumuru is an elegant shea-butter replacement specifically because the inherent color is low and the earthy scent is mild — it melts cleanly on the skin without shea’s stronger smoke-nut character.

Shelf life is at least two years stored cool, dark, and dry. The high saturated fatty acid content makes it very stable.

What it does in a formula

Murumuru is unusual among cosmetic butters because its fatty acid profile is lauric-acid heavy, like coconut oil. The typical breakdown is roughly 40-50% lauric acid, 25-35% myristic acid, plus smaller amounts of oleic and palmitic. The high lauric/myristic content gives it small molecules that penetrate the hair shaft well — which is why murumuru has a reputation for hair conditioning that goes beyond simply coating.

On skin, it feels soft, creamy, and slightly waxy, with a moderate absorption speed. It is less occlusive than cocoa butter and less rich than shea, sitting in its own category somewhere between coconut oil and mango butter.

How to use

Add to the oil phase. Melt at 50-60 C for anhydrous products, 70-75 C for emulsions. Like coconut oil, it can go through cool-warm cycles without dramatic texture changes.

Usage rates by product type:

• Hair masks and deep conditioners: 5-30% (its strongest use case)
• Hair butters and pomades: 10-30%
• Curl creams and leave-ins: 3-10%
• Body butters and whipped butters: 5-20%
• Lip balms: 3-10%
• Body lotions: 2-8%

More conservative working ranges, especially if you are new to murumuru and unsure how heavy it will feel: 1-5% in hair conditioners, 2-20% in lotions and creams, 5-100% in lip balms, 3-12% in soap.

Best for / Worst for

Best for: hair masks, deep conditioners, leave-in conditioners, curl creams, body butters for normal-to-dry skin, dry scalp oils, anything where lauric-acid penetration adds value, products inspired by Amazonian or natural Brazilian beauty traditions.

Worst for: face creams (lauric-rich fats are widely reported as comedogenic; a comedogenicity rating around 4 is common in DIY databases, similar to coconut oil), strictly oil-free formulas, very oily skin even on the body.

Common pitfalls

Comedogenicity. Like coconut oil, murumuru is high in lauric and myristic acids — fatty acids associated with pore-clogging on facial skin. The DIY comedogenicity scale rates it around 3-4. Keep it out of facial leave-on products unless you have tested on yourself first.

Sourcing. Murumuru is genuinely niche. Quality varies; reputable cosmetic suppliers will list “Astrocaryum Murumuru Seed Butter” and confirm Brazilian origin. Avoid generic “Amazonian butter” without COA.

Pricing. It is one of the pricier butters because of the small-scale harvest and supply chain. Plan recipes accordingly — use it where its hair-care strengths actually matter.

Confusing it with cupuaçu or murici. All three are Brazilian, all three sound similar, all three have completely different profiles. Murumuru is the lauric-rich one. Cupuaçu is water-binding and more like a luxury shea. Different ingredients.

Substitutes

• Refined coconut oil — similar lauric profile, much cheaper. Loses the unique buttery feel but covers the chemistry.
• Babassu oil — lauric-rich and lighter, often called a “dry coconut oil” in DIY. Closer in feel than coconut.
• Tucuma butter — also Amazonian, also lauric-rich but more brittle and harder.
• Mango butter — different fatty acid profile but similar softness; use when the lauric content is not the priority.