Key items

Forest of Wolves: from the Front Hills shrine cross the 'Forest of Wolves' bridge, turn left (not right to Bullguard) and follow the river to its end; take it from the stone Buddha head where a monkey jumps into the water.

Dropped by Shigandang, summoned at Fright Cliff > Rockrest Flat by inserting the 6 Buddha's Eyeballs into the big stone with faces (after Stone Vanguard).

Valley of Ecstasy > Mindfulness Cliff: walk forward from the shrine, turn right at the cliff, drop down and follow the path to its end, above the first Non-White arena.

Webbed Hollow > The Purifying Spring: in the next wide area with water, follow the planks on the left of the uphill path (or wade through the water) to the Buddha head where the Mandrill Chief sits.

Defeat Giant Shigandang in Mount Huaguo (only hostile while you carry the first four Skandhas) and climb onto him.

6 in total, from six chanting Buddha heads around Fright Cliff (Squall Hideout and Rockrest Flat areas; listen for the monk chanting).

Dropped by Tiger's Acolyte (Yellow Wind Ridge).

Dropped by Tiger Vanguard (Crouching Tiger Temple).

Dropped by Stone Vanguard (Fright Cliff > Rockrest Flat).

Dropped by Mother of Stones (Fright Cliff).

Yellow Wind Formation > Windrest Hamlet: from Windrest Bridge turn left into the courtyard, then the upper courtyard; break the glowing jar on the far left. Or buy it from Man-in-Stone for 6,480 Will (then the jar holds Ascension Powder instead).

Dropped by First Prince of the Flowing Sands (Sandgate Village > Valley of Despair).

Dropped by Second Prince of the Flowing Sands if the King of the Flowing Sands is defeated first (otherwise the fleeing King lures the First Prince himself and no chunk drops).

Sandgate Village > Valley of Despair: break the Bodhisattva-carved wall of the First Prince arena (lure his charge into it, use Wandering Wight's spirit headbutt, Azure Dust transformation recoil or a 4-Focus Smash heavy attack) and open the chest in the hidden cave.

After defeating Chen Loong at Bitter Lake > North Shore, greet Xu Dog (Crouching Tiger Temple > Cellar); he also gives the Fortifying Medicament formula.

Dropped by Captain Wise-Voice (Pagoda Realm > Mani Wheel, top of the pagoda).

Dropped by Captain Kalpa-Wave (New Thunderclap Temple gate).

Interact with the fallen Captain Void-Illusion near Valley of Ecstasy > Longevity Road (turn around from the shrine, head left).

Dropped by Captain Lotus-Vision (drop down the cliff opposite the Pagoda Realm > Upper Pagoda shrine); defeating him also frees the prison cells.

Dropped by Elder Amourworm (Webbed Hollow > The Verdure Bridge, area behind the lantern-room chests).

Random drop from destroyable cocoons in the Webbed Hollow: e.g. drop from the wooden platform below the Middle Hollow shrine or roll through the cocoons near Ma Tianba at Webbed Hollow > Cliff of Oblivion (single source). Holding cap 3 (more can be picked up after feeding).

Dropped by Bodhisattva's Right Hand (Webbed Hollow > Cliff of Oblivion).

Dropped by Zhu Bajie at the end of the second fight (mud pit next to the Hut of Immortality shrine, Webbed Hollow).

Random drop from the Staff / Fly-Whisk Daoists of Purple Cloud Mountain > Petalfall Hamlet after talking to Daoist Mi (flute player outside the temple).

Free: obtained on first meeting the Black Wind Mountain Keeper

Bought at Yellow Wind Ridge Keeper's Shrines

Bought at New West Keeper's Shrines (also Zodiac Village)

Bought at Webbed Hollow Keeper's Shrines

Bought at Flaming Mountains Keeper's Shrines

Bought at Mount Huaguo Keeper's Shrines

Given by the Keeper at the Black Wind Mountain > Forest of Wolves > Front Hills shrine (first shrine of Chapter 1), after he vanishes.

Reward from Chen Loong at Bitter Lake > North Shore after defeating him and delivering the Special-Made Bone-Strengthening Pellet obtained from Xu Dog.

Valley of Ecstasy > Forest of Felicity: straight ahead from the shrine, interact with the dead body (white fox fur) leaning against the wooden beams, which starts the fox side quest (single source).