Here is a non-official guide on how to get 99 Herblore skill in game. If you have another skill to request just leave me a reply or pm!
Starting off
Insure yourself you are starting off as a Trained account. Talk to Game-mode switcher to do so.
Herblore Guide
-Go To Training & Slayer tab in Spellbook. From there Click Skilling Zone.
-From here you have two options. You can talk to skill supply store, which gives you all of the normal skill supplies, Or you can spawn and clone in your load out.
Level 1 - 45/46 Attack Potions
Required Ingredients
-Guam potion(unf) 14 in inventory
-Eye of newts 14 in inventory
From here use the potion on eye of newts and click make all.
Repeat this twice. You should end up at or near the level 45-46
Level 45/46 - 81
Required Ingredients
Irit potion (unf) 14 in inventory
Eye of newt 14 in inventory
Dont forget to clone your inventory into load-out
Repeat just like level 1-45/46
Level 81 - 99
Required Ingredients
Toadflax potion (unf) 14 in inventory
Crushed nest 14 in inventory
Repeat just like the previous levels until level 99
Congratulations you now have level 99 Herblore!