Witch Hazel (Hamamelis Virginiana Leaf Water) is primarily used for tightens pores, anti-inflammatory, antioxidant, reduces redness. The mechanism: Tannins provide astringency; hamamelitannin is antioxidant; anti-inflammatory via reduced prostaglandins.
The scientific name is Hamamelis Virginiana Leaf Water. Tannins provide astringency; hamamelitannin is antioxidant; anti-inflammatory via reduced prostaglandins. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is 5–98%. Best suited to oily, combination skin. Primary applications: tightens pores, anti-inflammatory, antioxidant, reduces redness.
Works well with: Niacinamide, aloe vera. Avoid combining with: Alcohol (when combined — very drying).
Alcohol-free formulations far less irritating; preserves anti-inflammatory benefits.