Gielinor's Ledger
Serum 207 (1)

Serum 207 (1)

1 dose serum 207 as described in Herbi Flax's diary.

MembersBuy limit 2,000Potions & DrinksQuest: [[Shades of Mort'ton]]
Insta-buy

53gp

Insta-sell

36gp

Spread

17gp

47.22%
Margin

+16gp

+44.44% ROI
Volume

—

Trend

—

Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread
30D low
36
30D high
53
Volatility
38.2%

Flip calculator

Includes the 2% Grand Exchange tax

gp
gp
units
Net profitProfitable

+16gp

+16 per item · +44.44% ROI

Capital required
36 gp
Gross revenue
53 gp
GE tax (2%, 1/item)
− 1 gp
Break-even sell
36 gp

Item data

High alchemy
6 gp88.7% below market
Low alchemy
4 gp
Shop value
11 gp
Weight
0.02 kg
Skill / type
Herblore
Stack / note
Not stackable · noteable
Released
Oct 18, 2004

About Serum 207 (1)

The Serum 207 (1) is a members-only potion in Old School RuneScape.

"1 dose serum 207 as described in Herbi Flax's diary"

Over the last 30 days it traded between 23 and 102 gp on the Grand Exchange, averaging 52 gp. About 61 units changed hands per day. The price is up 55.2% across that window. The Grand Exchange buy limit is 2,000 every 4 hours. Selling one at the average price costs 1 gp in Grand Exchange tax.

Casting High Level Alchemy returns 6 gp, which is 88.5% below the 30-day average price, so alching a bought one loses money.

Recipes

Where this item appears in crafting and processing.

Used to make

Serum 207 (1) price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of Serum 207 (1) on the Grand Exchange
MonthAverageLowHighVolume
October 202610d422365416
September 202627d59231026,508
August 2026281210014,333
July 20262114284,602
June 202621d37171164,033
May 20262d802613439
April 20261d191919n/a
March 2026801518814,650
February 202643148216,386
January 2026511119713,724

Across 10 months of recorded prices Serum 207 (1) ranged from 11 gp in January 2026 to 197 gp in January 2026, measured over 211 trading days.

The 30-day average of 52 gp sits in the lower third of that range.

All prices in gp. Volume counts units traded across both sides of the Grand Exchange.