4 doses serum 207 as described in Herbi Flax's diary.
45 gp
Updated 17m ago
Serum 207 (4) is currently trading at 45 gp on the Grand Exchange and is down 10.0% over the last 24 hours. Current instant-buy and instant-sell prices are 40 gp and 50 gp.
Category: potions · Members only · View on OSRS Wiki
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Serum 207 (4) is a members-only item on the OSRS Grand Exchange in the potions category.
In-game examine text: "4 doses serum 207 as described in Herbi Flax's diary."
It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 8 gp, and item ID 3408.
| Time | Buy avg | Buy vol | Sell avg | Sell vol | Margin |
|---|---|---|---|---|---|
| 20m ago(9/20/2026) | 40 | 8 | — | – | – |
| 30m ago(9/20/2026) | 40 | 1 | 50 | 1 | 10 |
| 55m ago(9/20/2026) | 40 | 1 | — | – | – |
| 1h ago(9/20/2026) | — | – | 50 | 1 | – |
| 1h ago(9/20/2026) | — | – | 50 | 1 | – |
| 2h ago(9/20/2026) | — | – | 50 | 2 | – |
| 3h ago(9/20/2026) | — | – | 50 | 1 | – |
| 4h ago(9/20/2026) | — | – | 50 | 155 | – |
| 4h ago(9/20/2026) | — | – | 50 | 10 | – |
| 5h ago(9/20/2026) | — | – | 50 | 2 | – |
| 6h ago(9/20/2026) | 50 | 2 | 50 | 3 | 0 |
| 7h ago(9/20/2026) | — | – | 50 | 5 | – |
Serum 207 (4) has a Grand Exchange buy limit of 2,000 every four hours.
Serum 207 (4) shows an active flip setup with a margin of +10 gp and 17,684 trades over the last 24 hours. At the buy limit of 2,000 every four hours, max profit per cycle is about 20.0k gp — high margin with healthy liquidity.
Serum 207 (4) has a high alchemy value of 8 gp.
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Margin: 10 gp per flip
Volume: 17,684 trades / 24h
Buy limit: 2000 every 4 hours
Max profit/cycle: 20.0k gp
Verdict: High margin with healthy liquidity
Serum 207 (4) shows an active flip setup with a margin of +10 gp and 17,684 trades over the last 24 hours.
At the buy limit of 2,000 every four hours, max profit per cycle is about 20.0k gp — high margin with healthy liquidity.