Quartz

Quartz is a naturally occurring crystalline mineral composed of silicon dioxide. In skincare, it is used as a physical exfoliant in the form of finely ground particles. When incorporated into cleansers or scrubs, these particles work mechanically to remove dead skin cells and surface debris from the stratum corneum—the outermost layer of skin.Quartz appears in approximately 0.2% of skincare products, typically at low concentrations. Its primary function is abrasive action, making it suitable for formulations designed to provide mechanical exfoliation rather than chemical alternatives.

Quartz particles work through direct mechanical friction against the skin surface. When massaged onto damp skin, the hard mineral particles gently abrade away the outermost layer of dead cells, encouraging natural desquamation. This differs from chemical exfoliants (such as AHAs or BHAs), which dissolve the bonds between cells through enzymatic or acidic action.The effectiveness depends on particle size, formulation, and application technique. Finer particles are gentler and more suitable for regular use, whilst larger particles provide more intensive exfoliation and are typically reserved …

Apply quartz-based exfoliants to damp skin and massage gently using circular motions, avoiding the delicate eye area. Limit use to 1-2 times per week for most skin types to prevent over-exfoliation and irritation. Follow with a hydrating toner or moisturiser to support the skin barrier. Discontinue use if redness, sensitivity, or barrier damage occurs.

Quartz is generally well-tolerated in cosmetic formulations. However, physical exfoliants carry a higher risk of irritation and micro-abrasions than chemical alternatives, particularly if used too frequently or with excessive pressure. Avoid use on inflamed, compromised, or very sensitive skin.