Kaolin is a naturally occurring clay mineral that works as an absorbent in skincare products. It helps remove excess oil and impurities from the skin's surface, making it a popular ingredient in masks and cleansers, particularly for oily or combination skin types.
Benefits
Absorbs excess sebum and oil from skin
Gentle physical exfoliant that removes dead skin cells
Helps purify pores and reduce appearance of blemishes
Soothing and calming for irritated skin
Potential concerns
May be drying if used excessively or on already dry skin
Can cause mild irritation in sensitive individuals
May leave a slight residue or chalky feel if not rinsed thoroughly
Science: Kaolin is a well-established pharmaceutical and cosmetic ingredient with multiple documented applications in skincare, including oil absorption, skin protection, and anti-inflammatory properties. It has a long history of safe topical use and is recognized as biocompatible with minimal toxicity concerns.
Zinc oxide is a mineral UV filter that sits on top of your skin to physically block both UVA and UVB rays from reaching your skin. It's one of the few sunscreen actives recognized as safe and effective by the FDA, and it doesn't get absorbed into your bloodstream.
Benefits
Provides broad-spectrum UV protection (blocks both UVA and UVB rays)
Mineral/physical blocker — doesn't absorb into skin, making it suitable for sensitive skin and safe during pregnancy
Photostable — doesn't degrade in sunlight
Generally well-tolerated with low risk of irritation or allergic reaction
Potential concerns
Can leave a white cast on skin, especially at higher concentrations needed for adequate protection
May feel heavy or thick in formulation
Science: Zinc oxide is a mineral UV filter with an established safety profile and is not systemically absorbed through skin. Current scientific evidence supports its efficacy and safety for routine sunscreen use, with no associated negative health effects documented. Unlike organic UV filters, it does not contribute to environmental concerns like coral bleaching.
