Identity Profile: Aqueous Extract of Silk Tree

Commonly known as: Albizia Julibrissin Bark Extract (I.N.C.I.), also known as Persian Silk Tree, Albizia, Constantinople Acacia, Constantinople Mimosa, or Night Sleeper.

Botanical name: Albizia julibrissin Durazz.

Extraction process: The process of macerating the plant material in an extraction solvent (water), followed by filtration.

Family: Leguminosae.

Extracted part of the plant: Bark.

Cultivation area, origin: Originally from East and South Asia. Today, it is present on all continents, particularly in the United States.

Blooming: July - September.

Origin, provenance: France.

Phytochemical composition: Julibrosides, prosapogenins, triterpenoid saponins (hehuanoside A, julibrotriterpenoidal lactone A, machaeric acid lactone), flavonoids (3',4',7-trihydroxyflavone), alpha-spinasterol glucoside.

Sensory properties: Appearance: Clear to slightly opalescent liquid; Colour: Yellow to brown; Odour: Characteristic.

Physical properties: Soluble in water; pH: 4.0 - 6.0; Density: 1.190 - 1.210 g/cm3; Refractive index: 1.390 - 1.410; Recommended usage dosage: 3%.

Concerns: Antioxidant, anti-glycation, protective, firming, tightening, brightening.

Effect: All skin types, particularly tired skin lacking radiance (dull complexion); Recommended for combating dark circles.

Details

Properties

Antioxidant, anti-glycation: Protecting the skin against glycation by breaking the bonds of sugars to proteins. This is a chemical reaction resulting in the attachment of sugar to proteins (AGEs), thereby altering their structure and hence their function;
Brightening: Restoring radiance to the skin by strengthening the walls of the blood vessels to protect them against the phenomenon of glycation and by stimulating the toxin elimination systems;
Firming: Promoting skin firmness by inhibiting the degradation of dermal fibres.

Applications

Facial Care (serums, eye contour creams/serums, face creams, masks);
Makeups (concealers).

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L33 — Eye Serum
with 5% Caffeine + 5% Niacinamide — from £17.90

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L32 — Radiance Serum
with 11% Vitamin C — from £18.90

Method of Preservation

Store in a dry and well-ventilated place between 15 and 25°C. Keep away from heat sources, direct sunlight, and moisture.

Contraindications, Usage Precautions

The aqueous extract ofAlbizia Julibrissin is a non-irritating and non-allergenic ingredient. Therefore, it does not present any specific contraindications and is well tolerated by all skin types.

Originating from Asia, Albizia julibrissin was imported to Europe in the 18th century by an Italian naturalist, Filippo DEGLI ALBIZZI, who was captivated by the tree's beauty following his expedition to Constantinople. Such was his impact that the tree's generic name "Albizia" was attributed in his honour. Indeed, it produces delicate filamentous red flowers during the summer. Albizia is used in cosmetics for its bark, the extract of which restores the firmness and radiance of the skin by inhibiting the degradation of dermal fibres and strengthening the microvascular network. Indeed, Albizia julibrissin extract combats the skin signs of fatigue by fighting against the phenomena of glycation and glycoxidation. Glycation is a chemical reaction where excess sugar combines with the protein molecular structures of the skin, disrupting their structure and causing the elasticity of blood vessels to be lost. As a result, blood circulation slows down and the skin becomes duller and more tired. Furthermore, the glycation of proteins makes them more susceptible to oxidation, a process known as glycoxidation, which results in skin ageing.