The extract coming from Butcher’s Broom, a common evergreen shrub in the Mediterranean countries. It is known as a potent venous vasoconstrictor, meaning that it helps the narrowing of the blood vessels and increases the microcirculation.
In cosmetic products, this mainly translates to being a good astringent, refreshing and toning ingredient, as well as being an anti-redness, soothing and anti-cellulate agent.
Show me some proof
- Maswadeh, Hamzah M., Mohammad H. Semreen, and Ahmad R. Naddaf. "Anti-inflammatory activity of Achillea and Ruscus topical gel on carrageenan-induced paw edema in rats." Acta Pol Pharm 63.4 (2006): 277-280.
- Hexsel, Doris, and Mariana Soirefmann. "Cosmeceuticals for cellulite." Seminars in cutaneous medicine and surgery. Vol. 30. No. 3. Frontline Medical Communications, 2011.
- Berg, D. "Venous constriction by local administration of ruscus extract." Fortschritte der Medizin 108.24 (1990): 473-476.