The rock crystal in this push-up stick eliminates odour-causing bacteria, allowing perspiration without body odour. No aluminum chlorohydrate Does not block pores Paraben free No toxic ingredients Hypoallergenic Use after shower or bath. Apply under arms to wet skin (or dampen crystal first). Rinse stick after use. Do not use on broken or damaged skin. Discontinue use if irritation occurs. After use, protect all surfaces as staining may occur. Ammonium alum (mineral salts)