Profile: Phytosterols
Commonly known as: Beta-Sitosterol (INCI).
Botanical name: Pinus pinea.
Extraction process: Extraction through pressure of pine bark, followed by crystallisation and purification.
Family: Pine Family.
Extracted part of the plant: Bark.
Cultivation area, origin: Originating from the Mediterranean basin, from South-West Europe.
Blooming: Between March and May.
Origin, provenance: Southwest of France.
Phytochemical composition: β-sitosterols (70 – 80%), sitostanols (up to 15%), campesterols (6 – 10%), campestanols (up to 2%).
Sensory properties: Appearance: Fine powder; Colour: White; Odour: Odourless.
Physical properties: Structural similarity to cholesterol; Recommended usage dose to induce benefits: between 0.5 and 2%; Insoluble in water; Soluble in oils and fats when heated.
Concerns: Antibacterial, anti-inflammatory, antioxidant, soothing, moisturising.
Effect: All skin types, particularly dry, irritated, dehydrated, and atopic-prone skin; All hair types, especially sensitive scalps; Indicated in the prevention of ageing.
Details
Properties
Antibacterial: Combatting certain bacterial infections by inhibiting the growth of golden staphylococci ;
Anti-inflammatory: Alleviating skin discomfort sensations (tingling, redness, swelling, etc.) by reducing the production of pro-inflammatory molecules (IL-1β, TNF-α), and inhibiting the activity of lipoxygenase (LOX) and cyclooxygenase (COX), two enzymes playing a key role in the production of prostaglandins which are at the root of several inflammatory phenomena ;
Antioxidant: Halting the premature ageing of the skin by neutralising free radicals by stimulating the activity of endogenous antioxidant enzymes (superoxide dismutase and glutathione peroxidase) and providing an electron due to its chemical structure ;
Moisturiser: Enhancing the skin's barrier function and water retention by promoting the production of hyaluronic acid, as well as that of natural moisturising factors;
Regenerating: Restoring the skin by promoting cellular renewal and stimulating dermal fibroblasts.
Usage
Facial Care (balms/creams/moisturising and soothing milks, lip balms/oils, eye contour treatments, sun care, serums, dry beard oils, shaving creams);
Body Care (body scrubs, foot gels, exfoliating body balms, hand creams, after-sun treatments);
Haircare (styling creams, hair masks);
Makeups (foundations).
Method of Preservation
Store at room temperature, protected from moisture and direct sunlight.
Contraindications, Usage Precautions
Unregulated, phytosterols are considered to be safe and non-irritating for topical use. Pregnant and breastfeeding women, as well as children from the age of 3, can use them without risk.
