Adamant Pill = Adamant Seed + Immunizer
Adv Armor Sphere = Carbalite Ore + Armor Stone
Adv Armor Sphere = Firestone + Armor Stone
Air Philter = Airweed + Catalyst
Ait Philter (plus) = Airweed + Dash Extract
Ancient Potion = Immunizer + Kelbi Horn
Antidote = Antidote Herb + Blue Mushroom
Antidote Horn = Antiseptic Stone + Hunting Horn
Antiseptic Stone = Earth Crystal + Bitterbug
Armor Horn = Mega Armorskin + Monster Bone M
Armor S I = Bone Husk L + Adamant Seed
Armor S II = Bone Husk S + Adamant Pill
Armor Sphere = Killer Beetle + Armor Stone
Armor Sphere = Machalite Ore + Armor Stone
Armor Sphere (plus) = Dragonite Ore + Armor Stone
Armor Sphere (plus) = Rare Scarab + Armor Stone
Armorskin = Adamant Seed + Catalyst
Armortalon = Deviljho Talon + Armorcharm
Arowana Bait = Cricket + Bughopper
Barrel Bomb L (plus) = Large Barrel Bomb + Scatter Fish
Barrel Bomb L = Large Barrel + Gunpowder
Barrel Bomb S = Small Barrel + Fire Herb
Bomb Casing = Iron Ore + Sap Plant
Bomb Casing = Stone + Sap Plant
Bounce Bomb = Barrel Bomb S + Bnahabra Wing
Bounce Bomb (plus) = Bomb Arowana + Bounce Bomb
Bug Net = Monster Bone S + Net
Catalyst = Bitterbug + Honey
Chilled Meat = Well-done Steak + Ice Crystal
Cleanser = Hot Pepper + Burst Arowana
Cleanser = Popfish + Catalyst
Clust S Lv1 = Huskberry + Bomberry
Clust S Lv2 = Bone Husk S + Wyvern Claw
Clust S Lv3 = Bone Husk L + Scatterfish
Cool Drink = Ice Crystal + Bitterbug
Crag S Lv1 = Huskberry + Burst Arowana
Crag S Lv2 = Bone Husk S + Burst Arowana
Crag S Lv3 = Bone Husk L + Bomb Arowana
Dash Juice = Rare Steak + Catalyst
Demon Horn = Mega Demondrug + Monster Bone M
Demon S I = Bone Husk L + Might Seed
Demon S II = Bone Husk S + Might Pill
Demondrug = Might Seed + Catalyst
Dragon S = Bone Husk L + Dragonfell Berry
Drugged Meat = Raw Meat + Sleep Herb
Dung Bomb = Dung + Bomb Casing
Dung Bomb = Dung + Bomb Sac
Energy Drink = Honey + Nitroshroom
Energy Drink = Hot Pepper + Sleepyfish
Exhaust S = Bone Husk S + Dung
Farcaster = Exciteshroom + Bomb Casing
Felvine Bomb = Barrel Bomb S + Felvine
Fishing Harpoon = Broken Shell + Mystery Bone
Flaming S = Huskberry + Fire Herb
Flash Bomb = Flashbug + Bomb Casing
Freeze S = Huskberry + Ice Crystal
G Barrel Bomb L (plus) = Barrel Bomb L + Scatterfish
G Barrel Bomb S (plus) = Barrel Bomb S + Burst Arowana
G Bounce Bomb (plus) = Bomb Arowana + Bounce Bomb
Goldenfish Bait = Firefly + Snakebee Larva
Gun Powder = Fire Herb + Nitroshroom
Health Horn = Lifecrystals + Hunting Horn
Herbal Medicine = Cactus Flower + Bitterbug
Hot Drink = Bitterbug + Hot Pepper
Hot Meat = Well-done Steak + Hot Pepper
Hrd Armor Sphere = Gracium + Armor Stone
Immunizer = Dragon Toadstool + Catalyst
Iron Pickaxe = Iron Ore + Bone
Lifecrystals = Godbug + Wyvern Fang
Lifepowder = Lifecrystals + Wyvern Claw
Max Potion = Mega Nutrients + Dragon Toadstool
Mega Armorskin = Armorskin + Pale Extract
Mega Bug Net = Monster Bone M + Net
Mega Dash Juice = Well-done Steak + Dash Extract
Mega Demondrug = Demondrug + Pale Extract
Mega Nutrients = Honey + Nutrients
Mega Pickaxe = Machalite + Ore Bone
Mega Potion = Potion + Honey
Might Pill = Might Seed + Immunizer
Net = Ivy + Spider Web
Normal S Lv2 = Needleberry + Huskberry
Normal S Lv3 = Huskberry + Popfish
Nutrients = Godbug + Blue Mushroom
Old Bug Net = Net + Mystery Bone
Old Pickaxe = Stone + Bone
Old Pickaxe = Stone + Mystery Bone
Oxygen Supply = Airweed + Bomb Casing
Paint S = Huskberry + Paintberry
Paintball = Sap Plant + Paintberry
Para S Lv1 = Huskberry + Parashroom
Para S Lv2 = Bone Husk S + Parashroom
Paralysis Knife = Throwing Knife + Parashroom
Pellet S Lv1 = Huskberry Scatternut
Pellet S Lv2 = Huskberry + Wyvern Fang
Pellet S Lv3 = Bone Husk S + Wyvern Fang
Pierce S Lv1 = Huskberry + Bird Wyvern Fang
Pierce S Lv2 = Huskberry + Pin Tuna
Pierce S Lv3 = Bone Husk S + Pin Tuna
Pitfall Trap = Net + Trap Tool
Poison Knife = Throwing Knife + Toadstool
Poison S Lv1 = Huskberry + Toadstool
Poison S Lv2 = Bone Husk S + Toadstool
Poison Smoke Bomb = Bomb Casing + Poison Sac
Poison Smoke Bomb = Bomb Casing + Toadstool
Poisoned Meat = Raw Meat + Toadstool
Potion = Herb + Mushroom
Powertalon = Deviljho Talon + Powercharm
Recover S Lv1 = Huskberry + Herb
Recover S Lv2 = Huskberry + Potion
Shock Trap = Thunderbug + Trap Tool
Sleep S Lv1 = Huskberry + Sleep Herb
Sleep S Lv2 = Bone Husk S + Sleepyfish
Sleeping Knife = Throwing Knife + Sleep Herb
Slicing S = Bone Husk S + Whetfish
Slicing S = Bone Husk S + Whetstone
Smoke Bomb = Ivy + Bomb Casing
Sonic Bomb = Screamer + Gunpowder
Sub S Lv1 = Huskberry + Sharpened Fang
Sub S Lv2 = Bone Husk S + Sharpened Fang
Sushi Bait = Mega Fishing Fly + Yambug
Thunder S = Huskberry + Flashbug
Tinged Meat = Raw Meat + Parashroom
Tranquilizing Bomb = Bomb Casing + Tranquilizer
Tranquilizing Knife = Throwing Knife + Tranquilizer
Tranquilizer S = Bone Husk S + Tranquilizer
Tranquilizer = Sleep Herb + Parashroom
Tuna Bait = Worm + Yambug
Water S = Huskberry + Whetfish
Whetfish Bait = Mega Fishing Fly + Bughopper
WyvernFire Lv1 = Huskberry + Nitroshroom
WyvernFire Lv2 = Bone Husk S + Bomberry
WyvernFire Lv3 = Bone Husk L + Burst Arowana
here are some item combinations, you combine two things to make another. enjoy.