4 doses serum 207 as described in Herbi Flax's diary.
34 gp
Updated 15m ago
Serum 207 (4) is currently trading at 34 gp on the Grand Exchange and is down 15.0% over the last 24 hours. Current instant-buy and instant-sell prices are 30 gp and 38 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.
Margin: 8 gp per flip
Volume: 21,594 trades / 24h
Buy limit: 2000 every 4 hours
Max profit/cycle: 16.0k gp
Verdict: High margin with healthy liquidity
Serum 207 (4) shows an active flip setup with a margin of +8 gp and 21,594 trades over the last 24 hours.
At the buy limit of 2,000 every four hours, max profit per cycle is about 16.0k gp — high margin with healthy liquidity.
| Time | Buy avg | Buy vol | Sell avg | Sell vol | Margin |
|---|---|---|---|---|---|
| 17m ago(8/5/2026) | — | – | 38 | 8 | – |
| 1h ago(8/5/2026) | 30 | 2 | 30 | 121 | 0 |
| 2h ago(8/5/2026) | 34 | 2 | — | – | – |
| 4h ago(8/5/2026) | — |
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| – |
| 38 |
| 10 |
| – |
| 4h ago(8/5/2026) | — | – | 38 | 4 | – |
| 4h ago(8/5/2026) | — | – | 38 | 1 | – |
| 5h ago(8/5/2026) | — | – | 38 | 1 | – |
| 5h ago(8/5/2026) | — | – | 30 | 54 | – |
| 8h ago(8/5/2026) | 30 | 10 | — | – | – |
| 9h ago(8/5/2026) | — | – | 38 | 4 | – |
| 10h ago(8/5/2026) | — | – | 38 | 2 | – |
| 10h ago(8/5/2026) | — | – | 38 | 20 | – |