Ingredient Guide

Quaternium-15 is a formaldehyde-releasing preservative.

Quercetin is flavonoid pigment that has antioxidant and anti-inflammatory properties.

Quercus alba bark extract is white oak bark extract. It may have antibacterial properties but also can be a skin irritant.

Quince seed is used as a thickening agent in cosmetics. It also has astringent properties that may cause constricting feeling on skin.

Quillaja saponaria bark extract has surfactant properties due to glucoside saponin content.