3 different olive oil brands, what's the difference?

[Octavia]

I wanted to buy some more olive oil hair products for my hair, but have never tried the leave-in-conditioner before, when searching for some online. I saw it wasn't the "organic root stimulator" olive oil brand, but instead the "Organics" olive oil brand. Now I've seen 3 different types of olive oil brands, "botanical's", "organics extra virgin", and "organic root stimulator". I only use organic root stimulator but they seem to not have the leave-in-conditioner for that type of brand. Whats the difference between these 3 brands of olive oil products and should I use the leave-in-conditioner from the "Organics extra virgin" brand in my hair? I have really thick coarse hair that gets a bit dray after washing it with the "organic root stimulator olive oil aloe shampoo"
Also if I do use the leave-in-conditioner, would I still have to buy the "organic root stimulator replenishing pack", and the "oil moisturizing lotion"?