Juglans Regia Shell Powder
INCI: JUGLANS REGIA SHELL POWDER
Reviewed by Rosie · Last updated 14 Aug 2026
Also known as: Juglans Regia Shell Powder
A natural exfoliating powder derived from walnut shell fragments
Best For Skin Types
Oily, Combination
Addresses
Usage Frequency
1-2 times per week
What Is Juglans Regia Shell Powder?
Juglans regia shell powder is a finely ground abrasive material made from the hard outer shell of the walnut (Juglans regia). It functions as a mechanical exfoliant in skincare formulations, working through physical friction rather than chemical action.
This ingredient is used primarily in cleansing products and exfoliating scrubs, where its particle structure helps to physically remove dead skin cells, surface debris and excess sebum from the skin's upper layers.
Benefits for Your Skin
How It Works
Walnut shell powder exfoliates by means of mechanical abrasion. When suspended in a cleanser and applied to damp skin, the particles create friction against the skin surface, physically dislodging dead skin cells, dirt and excess oil.
Unlike chemical exfoliants that dissolve or break down dead skin cells through enzymes or acids, this method relies on the size and hardness of the particles to achieve exfoliation. The efficacy depends partly on particle size—smaller, more uniformly sized particles tend to cause less irritation than larger, irregular fragments.
Clinical Evidence & References
Research comparing various abrasive particles suggests that walnut shell powder is reasonably effective for removing oily grime and occupational soiling from skin. However, evidence specific to cosmetic use in skincare formulations remains limited.
Studies indicate that mechanical abrasives can be more irritating to the skin barrier than some alternative exfoliating methods, though the irritancy profile varies depending on particle size, formulation and application technique. Softer alternatives, such as spherical beads, may pose lower irritation risk for sensitive individuals.
How to Use
Use walnut shell powder exfoliants on damp skin, applying with gentle circular motions for no more than one to two minutes. Rinse thoroughly with lukewarm water. Begin with once or twice weekly application and adjust frequency based on your skin's tolerance. Avoid use on active acne lesions or severely compromised skin barriers, and always follow with a moisturiser to support skin hydration post-exfoliation.
Safety & Precautions
Frequently Asked Questions
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Juglans Regia Shell Powder is a variant of Juglans Regia Seed Extract, the form you will most often see on an ingredients list.
A walnut-derived extract with antioxidant properties for skin conditioning
Related Ingredients
Juglans Regia Seed Extract
A walnut-derived extract with antioxidant properties for skin conditioning
Juglans Regia (Walnut) Seed Extract
Extract that can have antioxidant properties for skin
Juglans Regia Seed
A finely textured physical exfoliant derived from walnut seed
Juglans Regia Seedcoat Extract
A plant-derived antioxidant from walnut seedcoat to help protect skin from oxidative stress
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Emollient— provides long-lasting moisture and softens skin | Viscosity control—helps improve product texture and flow
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Southeast Asian botanical for detoxifying and clarifying skin
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