Juglans Regia (Walnut) Shell Powder is a naturally derived abrasive powder obtained by finely milling the shells of the English walnut (Juglans regia), a species in the Juglandaceae family. In skincare formulations, walnut shell powder serves as an effective physical exfoliant, helping to mechanically remove dead skin cells, unclog pores, and refine skin texture. Its granulated structure provides a controlled abrasive action that supports skin renewal and a more radiant complexion when incorporated into scrubs, peeling creams, and cleansers. Walnut shell powder’s biodegradable and botanical nature makes it attractive for natural and eco-friendly exfoliating products, aligning with increasing consumer demand for sustainable, plant-based ingredients. By eliminating surface buildup and promoting cell turnover, formulations containing this powder can contribute to smoother, brighter skin and help enhance the efficacy of subsequent topical actives.
In haircare, walnut shell powder can be utilized in scalp scrubs and clarifying treatments to support scalp health by removing product buildup, excess sebum, and impurities from the scalp surface. Its abrasive texture stimulates scalp circulation and helps maintain a clean scalp environment, which is beneficial for promoting stronger, healthier-looking hair. When integrated into specialty shampoos and scalp exfoliators, walnut shell powder enhances the cleansing phase and can prepare the scalp for improved absorption of conditioning agents or serums.
Quick Insights
Ingredient Rating:
FAIR
Type of Ingredient:
Texture Enhancer, Cleansing Agent, Exfoliant, Detoxifier, Soother and Oil Control Agent
Intended Function:
Provide mechanical exfoliation and surface cleansing to reveal smoother, more radiant skin and support scalp clarity.
Common Applications:
Used in facial scrubs, body polishes, peeling creams, exfoliating cleansers, scalp scrubs, and conditioning shampoos where debris removal and surface refinement are needed.
Target Audience:
Brand owners and formulators seeking plant-derived, eco-friendly exfoliating ingredients that help elevate product performance for skin renewal and scalp cleansing.
Also Known As:
Walnut Shell Powder, Juglans Regia Shell Powder, Persian Walnut Shell Powder.
Safety Analysis
Juglans regia shell powder is considered generally safe for cosmetic use, with low hazard ratings for cancer, allergies, and developmental toxicity when properly formulated. According to safety databases, walnut shell powder has a low concern profile for typical topical applications, but it is not inherently comedogenic. However, its physical abrasiveness requires careful formulation and use instructions. Overly coarse grades or high inclusion rates may lead to micro-tears, irritation, or sensitivity, especially on delicate facial skin or areas with compromised barrier function. To mitigate such risks, cosmetic manufacturers often opt for finely milled powders (e.g., <200 microns) and include usage guidelines that encourage limited exfoliation frequency (e.g., 1-2 times per week) and avoidance of aggressive rubbing. Allergy considerations are generally low, but individuals with nut allergies should conduct patch testing and adhere to cautionary labeling, as fine particles may cause mechanical irritation or mild reactions in sensitive users.
References
Ready to launch your next product?
We offer US-based Beauty & Personal care private label, product development and manufacturing, starting with low minimum order quantity.We specialize in helping brands innovate and launch new products that resonate with their audiences.
Explore product launch options for your brand today.
Join the Brand Builder’s Newsletter
Sign up and access insider manufacturing strategy, product development tips, and resources to help you build a stronger brand.
Thinking about launching something else? We can create a wide range of custom formulas for your brand. Explore our product development capabilities and ingredients.
