Solution 125 was a potion that reduced the drinker's weight to 2 pounds. It was most likely produced by a Sixth year student during a Potions class, being that Horace Slughorn kept it in his classroom during the sixth-years' class. 
- Harry Potter and the Half-Blood Prince (film) (First appearance)
Notes and references
- ↑ Harry Potter and the Half-Blood Prince - Behind the Magic (ITV's Movie Special).