Serum 207 (4) trades around 47 gp now, -3.1% this week, 7-day range 45–69.
Flippers place a buy offer near the low and sell near the high.
“4 doses serum 207 as described in Herbi Flax's diary.”
Serum 207 (4) last traded at 48 gp (insta-buy) and 45 gp (insta-sell) on the Grand Exchange. That leaves a margin of 3 gp per item, with no GE tax at this price. 805 were traded in the last 24 hours. It is a members' item.
Hourly mid price, the average of the buy and sell prices. Volume counts both sides.
Daily GE guide prices from 6 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.
Tax: Selling one at 48 gp costs no tax. Items selling under 50 gp pay none, because 2% of the price rounds down to 0 gp. Tax-exempt items →
Serum 207 (4) last sold for 45 gp (instant sell) and was last bought for 48 gp (instant buy) on the Grand Exchange.
You can buy 2,000 Serum 207 (4) every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.
High alchemy turns Serum 207 (4) into 8 gp. Buying one at 48 gp and casting with a nature rune at 138 gp costs 186 gp. That is a loss of 178 gp per cast at the latest prices, so it is not worth alching for profit right now.
It is not on the exempt list, but it pays no tax at its price. Selling one at 48 gp costs no tax. Items selling under 50 gp pay none, because 2% of the price rounds down to 0 gp.
The highest daily guide price on record for Serum 207 (4) is 120 gp, on 6 Mar 2015. The lowest is 1 gp, on 15 Aug 2018.