The Witcher[]
Optima mater is an alchemy ingredient and can be purchased by the following merchants:
- Kalkstein in the Nonhuman district
- Abigail at her house in the Outskirts
Source[]
The Witcher 3: Wild Hunt[]
Optima mater is an alchemy ingredient that is needed to craft the following items:
It can be found as random loot or purchased from the following merchants:
- All alchemists except the Eternal Fire Priest
- All herbalists outside of Toussaint, except Yolar
- Armorer in Midcopse
- Armorer in Hierarch Square
- Armorer in Kaer Trolde citadel
- Armorer in Kaer Muire
- Armorer in Larvik
- Blacksmith in Lindenvale
- Rescued blacksmith in Fayrlund
- Merchant at the sawmill in White Orchard
- Generic Merchant in Nilfgaardian Army Group 'Center' Camp
- Merchant at the Boatmakers' Hut
- Merchant southeast of the Border Post
- Merchant in fishing village east of Stonecutters' Settlement
- Merchant in the campsite west of Lurtch
- Merchant at Mire Landing (Cestersover)
- Merchant at a crossroads between Mulbrydale and Devil's Pit
- Merchant by the bonfire at Road to Bald Mountain
- Halfling merchant in Silverton
- Merchant in Putrid Grove
- Quartermaster in Crow's Perch
- Wandering merchants in Velen and Novigrad
- Merchant in Kaer Trolde Harbor
- Merchant in the roadside camp south of Kaer Trolde
- Merchant at the sawmill south of Sund
- Wandering merchants in Skellige
- Wandering merchant in White Orchard during the epilogue
- Merchant at Crane Cape
- Merchant in Mohrin Village
- Pinastri in her home northeast of Dun Tynne Crossroads
Optima mater can also be obtained by dismantling either of the Ursine armors that are crafted with it.