Emollient

Pentaclethra Macroloba Seed Oil

INCI: PENTACLETHRA MACROLOBA SEED OIL

Reviewed by Rosie · Last updated 14 Aug 2026

Also known as: Pentaclethra Macroloba Seed Oil

A rich plant oil from the Amazon traditionally used for skin and hair conditioning

Best For Skin Types

All, Dry, Mature

Addresses

Dryness, Barrier repair

Usage Frequency

Daily

What Is Pentaclethra Macroloba Seed Oil?

Pentaclethra macroloba seed oil, commonly known as pracaxi oil, is extracted from the seeds of an Amazonian plant with a long history of use in indigenous skincare and haircare practices. The oil is characterised by a high content of behenic acid and other long-chain fatty acids, alongside unsaturated fatty acids, sterols and triterpene compounds.

In cosmetic formulations, it functions as an emollient and conditioning agent, meaning it works to soften and smooth the skin and hair by helping to retain moisture and create a protective layer on the surface.

How It Works

The oil's fatty acid profile allows it to penetrate and coat the outer layers of skin, mimicking natural sebum and helping to seal in hydration. The behenic acid and other long-chain components are particularly effective at this barrier-supporting function.

The triterpene compounds and sterols present in the oil may contribute to its traditionally reported anti-inflammatory properties, though the extent to which these compounds remain stable and active in cosmetic formulations requires further investigation.

Clinical Evidence & References

Traditional use among Amazonian populations suggests benefits for inflammation, wound healing and general skin health, but clinical studies specifically examining pracaxi oil's efficacy in modern skincare are limited. The ingredient's phytochemical composition—including triterpene saponins, tannins and oleanolic acid—indicates potential bioactive properties, but translating these into consistent skincare outcomes requires further research.

The emollient and conditioning benefits are well-established for oils with similar fatty acid profiles, so these functions are reasonably supported. However, specific claims about this ingredient's unique benefits would benefit from additional clinical data.

How to Use

This oil is typically used as part of a formulated product rather than applied neat to skin. In serums, moisturisers or haircare products, it usually appears in small concentrations as part of a blend. As with all plant oils, patch testing is advisable if you have sensitive or reactive skin, particularly if acne-prone.

Safety & Precautions

Generally well-tolerated in cosmetic formulations. Some users with acne-prone or fungal acne–sensitive skin report that plant oils can trigger flare-ups, so caution is warranted if you fall into this category.

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