Conditioner Product : Holinic

Conditioner Product

Conditioner Product 9

Why cant I access the DIY conditioner's recommendation database?
How can we know about the conditioner question if we haven't yet determined our hair profile? Will we be doing that at all so that we can make the best conditioner and shampoo?
How long can we store the conditioner for when we have the potassium sorbate added?
How to preserve home made conditioner?
Should I apply conditioner all over my scalp and strands? Or just on the ends?