Serum 207 (1) price in OSRS — live Grand Exchange data

About Serum 207 (1)

In game it is examined as “1 dose serum 207 as described in Herbi Flax's diary.” Serum 207 (1) is members-only, so a membership is needed to trade or use it. The base game value is 11 gp, which is what shops price from rather than what players pay.

Serum 207 (1) buy limit

The Grand Exchange lets one account buy 2,000 every 4 hours. That is enough to build a real position inside a day. Filling it once costs about 106,000 gp at the 53 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.

GE tax on Serum 207 (1)

Selling at 53 gp costs 1 gp in tax — 2%, rounded down, taken from the seller. A flip has to clear that before it makes anything, and it is the number most margin calculators leave out.

High alching Serum 207 (1)

High alchemy turns one Serum 207 (1) into 6 gp. That is less than the 142 gp nature rune the cast costs, so alching Serum 207 (1) always loses money.

How much Serum 207 (1) trades

Serum 207 (1) sees about 4 trades a day, which makes it very thinly traded — there may be no buyer for hours at a time, and one sale can set the price. That is less than twice the 2,000 buy limit, so a handful of buyers can take a whole day of supply.

Serum 207 (1) FAQ

How much is Serum 207 (1) in OSRS? Serum 207 (1) is 53 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 3 gp. The chart above is live.

What is the buy limit for Serum 207 (1)? 2,000 every 4 hours.

Can you high alch Serum 207 (1) for profit? No — the alch value is 6 gp and the nature rune alone costs 142 gp.

Do you need members for Serum 207 (1)? Yes, Serum 207 (1) is members-only.