Herblaw is used to make different sorts of potions and poisons. Before you can use herblaw you will need to do complete the druidic ritual quest.

Identifying herbs

A lot of the herbs you find in Runescape will be unidentified. To be able to use them you will first need to use your herblaw skill to identify them. Just click on a herb to identify it and if you are high enough level it will then become an identified herb type and you will gain some experience.. As your herblaw level gets higher you will be able to identify more and more different herbs.

To make Potions

First you will need a vial These can be bought from the herblaw shop in Taverley. Fill the vial with water from any sink or water fountain.

To make potions you will need a combination of one identified herb and one other ingredient as shown in potion ingrediants table below. You first must add your herb to your vial of water first and then the other ingredient. As you reach higher levels you will be able to make more types of potions.

Ground Ingrediants

The Blue dragon scale and unicorn horn need to be ground before they can be used in the potions. To grind them use the pestle and mortar bought from the herblaw shop.

Weapon poison

The weapon poison can only be used on daggers and on arrows. Weapon poison will only affect players and not monsters. Players can be poisoned by other player's poisoned weapons or by a poisonous npc!

A player will slowly take damage from the poison until it either wears off or they drink a poison antidote or cure poison potion. The poison antidote also grants a small immunity so that the drinker cannot be poisoned for a short while. The cure poison potion does not grant this immunity.

Formula for Effect of Potions affecting any skill. (Attack, strength etc..)

You take your skill being used on (lvl 70 str for instance)

lvl-20 (don't ask it just works) = N
N * 1.2 (what the potion does) = X
20 + X = Final (80 is end result in this example)

I have tested it with a few skills (lvl 65 and lvl 70 and lvl 67) and works rounded, (to the best of my knowledge rounding may be different)

 

Herblaw Level		Potion	Herb needed	2nd Ingredient needed		Potion Exp Gain	Effect
3		Attack potion	Guam Leaf		Eye of Newt, Buy in Port Sarim	25
5		Cure poison potion	Marrantill		Ground Unicorn Horn, from unicorn.	37.5	remove poison
12		Strength potion	Tarromin		Limpwurt Root, From Giants, hobgoblins.	50
22		Stat restore Potion	Harralander		Red Spider's Eggs, Varrock Dungeon,	63
30		Denfense potion	Ranarr Weed		White Berries, Red dragons lava lake in wildernes.	75
38		Restore Prayer Potion	Ranarr Weed		Snape Grass	87.5	+ 21 Prayer
45		Super attack potion	Irit Leaf		Eye of Newt, Buy in Port Sarim	100
48		Poison antidote	Irit Leaf		Ground Unicorn Horn, from unicorn.	106
50		Fishing potion	Avantoe		Snape Grass	113
55		Super strength potion	Kwuarm		Limpwurt Root, From Giants, hobgoblins.	125
60		Weapon poison	Kwuarm		Ground Bluedragon Scale, From blue dragons, Zamorak Dungeon.	137.5
66		Super defense potion	Cadantine		White Berries, Red dragons lava lake in wildernes.	150
72		Ranging potion	Dwarf Weed		Wine of Zamorak, Zamorak temple north of Goblin village.	?

Herblaw Level needed to Identify	Herb	Herblaw Exp. Gain
3	Guam Leaf	2.5
5	Marrantill	3.75
10	Tarromin	5
20	Harralander	6
25	Ranarr Weed	8
40	Irit Leaf	?
	Avantoe	?
	Kwuarm	?
	Cadantine	?
	Dwarf Weed	?