A serum 208 flask is a potion flask originally containing six doses of Serum 208. It is created by using the serum on a potion flask. Serum 208 can be used on Afflicted villagers for small rewards.
The flask is made by blowing robust glass, requiring 89 Crafting and giving 100 experience. Red sandstone can be mined at Oo'glog and smelted using the robust glass machine also located at Oo'glog.
To decant the potion into the flask, one must have at least 6 doses of Serum 208 in their inventory, as well as one or more potion flasks. Using the flask on the potion will open a menu to decant them. The optimal inventory setup for decanting potions is 17 4-dose potions and 11 flasks.
Once a dose of the potion has been used on an Afflicted, no more doses can be added to it. After all six doses have been used up, the flask will shatter and disappear. Flasks can be combined together, but the empty flasks will be destroyed in the process.
Cure Rewards[]
| Item | Quantity | Rarity | GE price | |
|---|---|---|---|---|
 | Coins | 30–40 | Common | 30–40 |
 | Swamp paste | 10–34 | Common | 20–68 |
 | Olive oil (1) | 2–5 | Common | 336–840 |
 | Olive oil (2) | 2–5 | Common | 504–1,260 |
 | Olive oil (3) | 2–4 | Uncommon | 1,010–2,020 |
 | Olive oil (4) | 2–3 | Uncommon | 1,612–2,418 |
 | Logs | 1–5 | Common | 291–1,455 |
 | Oak logs | 1–5 | Uncommon | 591–2,955 |
 | Willow logs | 2–5 | Uncommon | 496–1,240 |
 | Maple logs | 3–5 | Rare | 324–540 |
 | Limestone brick | 2–9 | Common | 792–3,564 |
 | Grimy tarromin | 2–5 | Common | 210–525 |
 | Thin snail | 1–3 | Common | 1,074–3,222 |
 | Lean snail | 2–3 | Uncommon | 2,264–3,396 |
 | Bronze key red | 1 | Rare | Not sold |
 | Bronze key brown | 1 | Rare | Not sold |
 | Bronze key crimson | 1 | Rare | Not sold |
 | Sealed clue scroll (easy) | 1 | Rare | Not sold |
Disassembly[]
| Disassembly XP | 0.1 |
|---|---|
| Item quantity required | 1 |
| Material count | 1 |
| Base junk chance | 98.9% |
| Possible materials | |
| Often | |
 Simple parts | 99% |
| Rarely | |
 Variable components | 1% |
| Shades | |||||||||||
| Remains |
 Loar remains Phrin remains Riyl remains Asyn remains Fiyr remains Tortured soul | ||||||||||
| Pyre logs |
 Wood Oak Willow Teak Arctic Maple Mahogany Eucalyptus Yew Magic Elder | ||||||||||
| Materials and tools |
Olive oil Sacred oil Serum 207 (flask) Serum 208 (flask) Timber beam Limestone brick Swamp paste Flamtaer hammer Shade luring dummy Flamtaer bracelet | ||||||||||
| Rewards |
 Fine cloth Shade skull Necromancer kit | ||||||||||
| Shade keys |
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| Locations |
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| Related |
 Shades of Mort'ton | ||||||||||
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