Combat potion(3)

The Combat potion(3) is a members-only Old School RuneScape item — “3 doses of combat potion.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 115 gp and sells at 231 gp — a net margin of 112 gp (97.4% ROI) after the 2% Grand Exchange tax of 4 gp. High alchemy yields 96 gp.

To flip it, place a buy offer near 115 gp and a sell offer near 231 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.