1 x Fluxweed
1 x Knotgrass
1 x Lacewing Flies
1 x Leeches
Add 3 measures of Fluxweed to the cauldron
Add 2 bundles of Knotgrass to the cauldron
Stir 3 times, clockwise
Wave your wand
Leave to brew and return in 80 minutes
Add 4 leeches to the cauldron
Add 2 scoops of Lacewings to the mortar
Crush to a fine powder
Add 2 measures of crushed Lacewings to the cauldron
Heat for 30 seconds on a low heat
Wave your wand to complete the potion