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Ingredient library / Potassium Alum
Other ingredient

Potassium Alum

A naturally occurring aluminum potassium sulfate mineral salt used as an astringent, mild antibacterial, and deodorant active in beauty waters, deodorants, and after-shaves.

Also known as: alum, alun

astringentantibacterialhemostatic

Benefits

  • ✓Tightens pores and provides an astringent effect
  • ✓Natural mineral-origin deodorant active
  • ✓COSMOS-certified organic-compatible ingredient

Watch for

  • ⚠Contains aluminum; some concerns around percutaneous absorption though regulatory bodies have not restricted its use in cosmetics
  • ⚠May cause dryness or mild irritation at high concentrations
At a glance
CategoryOther
IrritancyModerate–high
Beginner-friendlyYes
In your routine

Generally well-tolerated and easy to layer.

Found in 0 products