• Derived from: black walnuts
  • Pronunciation: (JU-glans NI-gra)
  • Type: Natural
  • Other names: black walnut leaf extract

What Is Juglans Nigra leaf extract?

Juglans nigra leaf extract (black walnut leaf extract) is a substance made from the black walnut tree, which grows in small groups throughout the central and eastern parts of the United States and is native to the United States.[1,2] The tree’s wood is used for furniture, and the nuts are often found in baked goods and ice cream.[3] The extract from the black walnut leaf is found in a variety of products, including body wash, moisturizer, bar soap, hand cream, hair spray and self-tanners, among other things.[4]

What Does Juglans Nigra leaf extract Do in Our products?

Walnut leaves have been used to treat a variety of skin conditions, for example, including acne, dermatitis, dandruff and rashes. As an emollient, the extract from the leaves helps products form a protective barrier on the skin. Juglans nigra leaf extract (black walnut leaf extract) can also be used as an astringent.[5,6] In our products, juglans nigra leaf extract (black walnut leaf extract) is a skin conditioner that helps keep the skin soft.

Why Puracy Uses Juglans Nigra leaf extract

We use juglans nigra leaf extract (black walnut leaf extract) in several of our products as a moisturizer. The FDA has deemed juglans nigra leaves safe for use in food.[9] Whole Foods has deemed the ingredient acceptable in its body care quality standards.[10] Because juglans nigra leaf extract (black walnut leaf extract) is sourced from the leaf of the walnut tree and not the nut itself, it is not considered an allergen for those with nut allergies.

How Juglans Nigra leaf extract Is Made

Black walnut trees produce a chemical called juglone. It can be found in its fruit, leaves and branches.[7] Typical methods of extraction from the leaves involve macerating the leaves in an organic solvent and then evaporating the solvent.[8]

Certifications

Sources

[1] Virginia Tech Dept. of Forest Resources and Environmental Conservation
[2] U.S. Forest Service
[3] U.S. Forest Service
[4] Environmental Working Group
[5] Environmental Working Group
[6] Blume-Peytavi, U., et al., eds., Hair Growth and Disorders, Springer (2008). pp.26
[7] 
Iowa State University Extension and Outreach
[8] M. Strugstad and S. Despotowski, "A Summary of Extraction, Synthesis, Properties, and Potential Uses of Juglone: A Literature Review." ournal of Ecosystems and Management
[9] Food and Drug Administration
[10] Whole Foods Market

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