Yes, fast money via making potions. It really is a money maker, believe it or not, that's all up to you
Did you know a level 5 statpotion (strengh/dext or int) is worth 136 gold, level 8 gives 226 and level 10 gives 286 gold! That's all more than a Malachite Ore (40 gold, right?) and a Diamond gives 180 gold selling it.
If you invest in skill Master Herbalist you need only :
Level 5 potion: 1 Black Rose ; Level 8 potion: 1 Dragon Nail ; Level 10 potion: 1 Fanny Blossom
Okay, then you must invest in Master Herbalist, but skillpoints enough, no ? And yewellery items with a boost to Master Herbalist could be found/bought too .
Without Master Herbalist you need many more ingredients making potions ! But upgrading your Alchemy platform also lowers the amount of ingredients needed for making potions !
The Allan Brew is worth around 250 gold pieces and you can spend all your Holy Basil & Wisperwoood herbs on them .
But it's all up to you of course .
I like it to be a Master Herbalist ... and I buy all herbs I can find by merchants from start to finish (on my current playthrough) ... they don't cost much gold, but give you afterwards a coin purse you can't lift anymore

... (I remember on level 30 I had at least 250 000 goldcoints and upgraded all three runners - total cost 14 000 x 3 >>> 42 000 gold - and train different skills up to level 15 ).
But in fact it's too many gold and for what or who ? So I'm not planning to do a "collecting gold mania" ever again . If I really need money ... I make money selling potions and other loot, but otherwise ...