Serum 207 (4)
4 doses serum 207 as described in Herbi Flax's diary.
Serum 207 (4) is a members-only item on the OSRS Grand Exchange. Recent trades put the high price at 59 GP (15m ago) and the low price at 50 GP (7h ago). Buying at the low price and selling at the high price would leave 8 GP per item after the 2% tax (16.00% of the buy price). You can buy up to 2,000 every four hours. High Alchemy would lose 208 GP per cast if you bought it at the low price and paid for the nature rune. 3,580 were traded in the last 24 hours.
| High | 59 GP () |
|---|---|
| Low | 50 GP () |
| Tax | 1 GP |
| Margin | 8 GP |
| ROI | 16.00% |
| Buy limit | 2,000 every 4 hours |
| High alchemy | 8 GP |
Buy price (insta-sell / low): 50 GP
Sell price (insta-buy / high): 59 GP
Margin after tax: 8 GP per unit. Grand Exchange tax on a sale is 1 GP.
Buy limit: 2,000 every 4 hours.
The full buy limit of 2,000 Serum 207 (4) costs 100,000 GP at the current buy price. Across that quantity, the after-tax margin is 16,000 GP.
- Grand Exchange buy limit: 2,000 every 4 hours
- Members-only item
- High alchemy value: 8 GP
- Low alchemy value: 5 GP
- Base value: 14 GP
Serum 207 (4) price history
- Over the past 7 days, the average high ranged from 52 GP to 69 GP across 13 hourly samples. From 2026-11-02 UTC to 2026-11-07 UTC, it moved from 69 GP to 59 GP (-10 GP, -14.49%).
- Over the past 30 days, the average high ranged from 43 GP to 69 GP across 52 hourly samples. From 2026-10-09 UTC to 2026-11-07 UTC, it moved from 54 GP to 59 GP (+5 GP, +9.26%).
- Over the past 90 days, the average high ranged from 30 GP to 69 GP across 137 hourly samples. From 2026-08-10 UTC to 2026-11-07 UTC, it moved from 31 GP to 59 GP (+28 GP, +90.32%).
- Over the past 90 days, the highest average high was 69 GP on 2026-11-06 UTC, and the lowest was 30 GP on 2026-08-26 UTC.
As of 2026-11-07 UTC. See this week's market summary.
To cite this page: QuantScapers, "Serum 207 (4) price history", based on OSRS Wiki real-time price data through 2026-11-07 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Serum 207 (4)?
You can buy up to 2,000 Serum 207 (4) every 4 hours on the Grand Exchange.
Is Serum 207 (4) a members-only item?
Serum 207 (4) is a members-only item and requires OSRS membership to trade.
What is Serum 207 (4)'s current buy and sell price?
At the latest update, Serum 207 (4)'s insta-sell (low) price is 50 GP and its insta-buy (high) price is 59 GP on the Grand Exchange.
How much Grand Exchange tax applies to Serum 207 (4)?
A sale of Serum 207 (4) pays the standard 2% Grand Exchange tax, which is 1 GP per unit at the current price.
What does a full buy limit of Serum 207 (4) cost?
Buying the full limit of 2,000 Serum 207 (4) costs 100,000 GP at the current insta-sell price of 50 GP each.