Macropiper Excelsum Leaf 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: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Macropiper Excelsum Leaf Powder?

Macropiper Excelsum Leaf Powder is a finely milled powder made from the dried leaves of Macropiper excelsum, a pepper family shrub native to New Zealand and commonly known as kawakawa. The leaves are naturally rich in soothing essential oils, antioxidants and skin friendly compounds that help calm and protect the skin. Traditionally, Māori communities used kawakawa leaves to soothe minor skin irritations and this centuries-old practice inspired modern formulators to explore its cosmetic potential.

To create the powder, mature leaves are sustainably harvested, gently washed, then air- or low-heat dried to preserve their active components. Once completely dry, they are ground into a fine, greenish powder that can be blended easily into water- or oil-based cosmetic formulas.

Today, Macropiper Excelsum Leaf Powder shows up in a variety of products such as calming face masks, daily moisturizers, after-sun lotions, anti-aging serums, blemish spot treatments and even soothing body balms. Its mild nature and plant-based origin make it a popular choice for brands looking to add a touch of botanical care to their lines.

Macropiper Excelsum Leaf Powder’s Cosmetic Benefits/Uses

This ingredient brings two main benefits to topical formulas

  • Skin Conditioning: Helps keep skin soft, smooth and comfortable by delivering natural emollients and antioxidants that support a healthy skin barrier. Regular use can enhance overall skin feel and leave the complexion looking refreshed
  • Skin Protecting: Provides a plant-derived shield against everyday environmental stressors like pollution and dry air by forming a light protective film on the surface of the skin, which helps reduce moisture loss and keeps irritants at bay

Who Can Use Macropiper Excelsum Leaf Powder

Thanks to its gentle, plant based profile, Macropiper Excelsum Leaf Powder is generally suitable for all skin types including dry, oily, combination, normal and even sensitive skin. Those with highly reactive or allergy prone skin should still approach cautiously, as with any new botanical.

Being entirely derived from a shrub leaf and containing no animal by products, it is appropriate for both vegans and vegetarians, provided the finished formula is free of animal sourced additives and has not been tested on animals.

Current data shows no specific risks for pregnant or breastfeeding women when the ingredient is used topically at cosmetic levels. This is not medical advice, and anyone who is expecting or nursing should check with a healthcare professional before adding new skincare to their routine.

The powder is not known to cause photosensitivity, so daytime use does not typically require extra sun precautions beyond a good daily sunscreen that should already be in place.

Potential Side Effects/Adverse Reactions

Side effects from topical Macropiper Excelsum Leaf Powder vary from person to person. The points below outline potential reactions, though most users will not experience them when the ingredient is correctly formulated and used as directed.

  • Mild redness or stinging on very sensitive skin
  • Dry patches if the product base is not adequately hydrating
  • Allergic contact dermatitis in individuals allergic to plants from the pepper family
  • Rare itching or rash due to individual intolerance of naturally occurring compounds in the leaf

If any of these effects occur stop use immediately and consult a qualified healthcare professional.

Comedogenic Rating

Rating: 1 (very low likelihood of clogging pores)

Macropiper Excelsum Leaf Powder is made from ground leaves that contain minimal oil, so it does not have the heavy, waxy molecules often linked to breakouts. Its particles also disperse well in water and light emulsions, meaning they sit on the skin without forming an occlusive film. Because of this, it is generally suitable for people who are prone to acne or congestion.

As with most botanical powders, issues are more likely to arise from the overall formula or from individual sensitivities than from the powder itself. If the finished product contains heavy oils or butters, the comedogenic potential will be influenced by those ingredients rather than the leaf powder.

Summary

Macropiper Excelsum Leaf Powder conditions and protects the skin by supplying gentle emollients, antioxidants and film-forming compounds that reinforce the moisture barrier and shield against everyday environmental stress. Although not yet a mainstream staple, it has gained steady interest in natural skincare circles and among brands inspired by traditional Māori remedies.

The ingredient is considered safe for topical use with only rare reports of irritation or allergy, making it a low-risk choice for most skin types. As with any new cosmetic product it is wise to perform a small patch test first to confirm personal tolerance.

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