Black walnut extracts

Functions
Estrogenic
Antiseptic
Lubricator
CAS Number(s)
96690-56-1
EINECS number(s)
306-252-0

Black walnut (Juglans nigra) is also known as American walnut. The tree is one of the most sought-after native hardwoods. The tree grows in small natural groves. They are frequently found in mixed forests. They thrive well on moist alluvial soils. The tree has been heavily logged for its fine straight-grained wood that was used to make furniture and gunstocks. The nuts from black walnuts have been used for food and medicine for a long time. The bark of the tree and the shell of the nuts are also used for many purposes.

Black walnut products have a history of medicinal uses. American Indians used inner bark tea as an emetic and laxative. They chewed the bark for toothaches. The bark is still used as a dentifrice in Pakistan. The husk is chewed for colic and used as a poultice for inflammation.

Juglans insularis is used in Cuba as an herb decoction used in bath water for the treatment of various skin diseases in children. Fruit husk juice is used for ringworm. Juglone from fruit and bark of Juglans nigra acts against dermatomycosis. Ancient Greeks and Romans used it to treat dermal mycoses.

Walnut pollen is a common allergen. Ellagic acid and juglone is being studied for use as cancer therapy drugs. The leaf extract has been used as phytoestrogen body cream and, together with Ginseng, can be used for making vaginal lubricants.

A strong tincture of the leaves and nuts of black walnut has been used as a remedy in the treatment of bilious and cramp colic. The decoction has also been used as an effective vermifuge. The rind of the green fruit has been used in the treatment of ringworm, tetter, and diphtheria. The nut is a food source rich in manganese which is important for nerves and cartilage.

Active ingredients (or INCI)

Juglans nigra bark extract
Juglans nigra leaf extract
Juglans nigra shell extract

Black walnut shell

The shell of the black walnut is one of the most difficult shells to crack. While this creates a challenge for processors, it also creates market opportunities. The hard shell is an important product in its own right.

Black walnut shells are ideal as a gritty and abrasive material and are used as a rough agent in soap, cosmetics, and dental cleansers. The oil from walnut kernels is high in unsaturated fats and can be used in cooking and in personal care applications