Calophyllum Inophyllum Seedcake Powder: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Calophyllum Inophyllum Seedcake Powder?

Calophyllum Inophyllum Seedcake Powder comes from the tamanu tree, a tropical evergreen that grows along coastlines in the South Pacific, Southeast Asia and East Africa. After the seeds are cold pressed to extract their prized tamanu oil, the leftover solid matter is called seedcake. Instead of discarding this by product, manufacturers dry it, sift away large fibers, then grind it into a fine, beige-brown powder. The powder still holds small amounts of the seed’s natural fatty acids, proteins, polysaccharides and aromatic compounds such as calophyllolide and coumarins, which can lend added skin benefits. Traditional island communities used every part of the tamanu nut for skin care and wound soothing; today formulators value the seedcake powder for its mild grit, moisture-binding ability and upcycled origin. You will most often see it in facial and body scrubs, powder cleansers, clay or cream masks, solid cleansing bars, exfoliating foot treatments and hydrating anti aging creams that aim to polish dull skin while locking in water.

Calophyllum Inophyllum Seedcake Powder’s Cosmetic Benefits/Uses

This multi-tasking ingredient brings three helpful actions to topical formulas

  • Abrasive: Its fine, uniform particles give gentle mechanical scrubbing power that helps sweep away surface buildup without scratching healthy skin
  • Exfoliating: By loosening and removing dead cells, the powder reveals fresher skin underneath, encouraging a smoother tone and better light reflection for a natural glow
  • Humectant: Residual sugars and glycerides in the seedcake can attract and hold water, supporting skin hydration and cushioning the feel of a formula after rinse off

Who Can Use Calophyllum Inophyllum Seedcake Powder

The fine texture and gentle absorbency of Calophyllum Inophyllum Seedcake Powder make it a good match for most skin types including normal, combination and oily skin that benefits from regular surface polishing. Dry skin can also tolerate it thanks to its natural humectant properties, though pairing with a creamy base helps cushion any grit. Very sensitive or highly inflamed complexions, such as those with active rosacea or open cystic acne, may find the mechanical exfoliation too stimulating and should opt for a softer alternative.

The powder is completely plant derived with no animal additives so it is suitable for both vegans and vegetarians. It is also halal and kosher friendly when sourced from a facility that follows the relevant guidelines.

No published data suggest harm to pregnant or breastfeeding women when the ingredient is used topically in rinse off or leave on products. That said this is not medical advice and anyone expecting or nursing should review all skincare choices with a qualified healthcare provider for personal assurance.

The powder does not contain known photo-sensitising constituents and is not expected to increase sun sensitivity. Standard daily sunscreen habits remain advisable for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Calophyllum Inophyllum Seedcake Powder differ from person to person. The points below outline potential issues yet the typical user will experience none of them when the ingredient is included at appropriate levels in a well formulated product.

  • Transient redness or micro scratches if the powder is massaged too vigorously
  • Allergic reaction in individuals sensitive to tamanu or other tree nuts leading to itching swelling or rash
  • Temporary pore congestion in extremely acne prone skin due to residual lipids
  • Mild stinging or burning when applied to freshly shaved abraded or compromised skin
  • Light brown staining of towels or clothing if residue is not fully rinsed away

If any of these reactions occur stop using the product immediately and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 2/5  Calophyllum Inophyllum Seedcake Powder carries only trace amounts of the heavier oils found in pure tamanu oil, yet a small fraction of those lipids can still linger on skin and potentially mix with sebum. Because the particles are rinsed away after use in most scrubs or masks the risk of pore blockage stays low, but it is not completely absent. For that reason the ingredient earns a mild rating of 2 rather than being considered fully non-comedogenic.

Most acne prone users can tolerate products featuring this powder, especially if the formula is rinse off or balanced with oil absorbing clays and gentle surfactants.

Formulation factors such as percentage used, grind size and whether the product is leave on or wash off will also influence how it behaves on different skin types.

Summary

Calophyllum Inophyllum Seedcake Powder works as an abrasive, exfoliating and humectant agent. Its finely milled particles provide a mild physical polish that lifts away dead surface cells, while leftover sugars and glycerides draw in water helping skin feel soft and cushioned after use.

The ingredient is still a relative niche player compared with mainstream exfoliants like jojoba beads or walnut shell yet its upcycled origin and multitasking nature are making it increasingly popular among eco focused brands and solid format cleansers.

Overall safety is high with few reports of irritation or allergy outside of tree nut sensitivity. As with any new skincare component it is sensible to perform a quick patch test when trying a product that contains this powder, particularly if you have reactive or acne prone skin.

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