Combat potion(2)

The Combat potion(2) is a members-only Old School RuneScape item — “2 doses of combat potion.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 64 gp and sells at 177 gp — a net margin of 110 gp (171.9% ROI) after the 2% Grand Exchange tax of 3 gp. High alchemy yields 63 gp.

To flip it, place a buy offer near 64 gp and a sell offer near 177 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.