|3rd||Damage Magicka Regen|
11 guaranteed samples can be found in 11 different locations:
- Aretino Residence (Windhelm)
- Black-Briar Manor (Riften), in a locked room in the basement
- Brittleshin Pass (Falkreath Hold)
- Broken Fang Cave (Whiterun Hold)
- Bruca's Leap Redoubt (The Reach)
- 110 ft N of Dragontooth Crater (The Reach)
- Ilinalta's Deep (Falkreath Hold)
- Liar's Retreat (The Reach)
- 250 ft SSW of Lost Valley Redoubt (The Reach)
- Sunderstone Gorge (Falkreath Hold)
- Volunruud (The Pale)
With Dawnguard installed, 5 additional samples become available:
It is categorized as a rare ingredient, meaning that it can only be randomly found in rare-type apothecary's satchels. However, they do not appear in the inventories of apothecary merchants (even if the Merchant perk has been unlocked). Unlike several other ingredients that are not stocked by apothecary merchants, though, human hearts can be sold to merchants. Other possible locations for samples include:
- 20% chance of being dropped by the giant boss in The Cursed Tribe quest.
- Rare-type apothecary's satchels have a 6% chance of containing one.
- Falmer magic casters, warlocks, and Forsworn have a 0.7% chance of carrying one.