Why did I fail in using this restoration potion glitch?

The glitch is not patched.

Basically I tried again. This time I have ingredients for fortify enchanting too.

What happens is I tried to drink restoration and go ahead try to create fortify enchanting.

Turns out the number that shows up is bad.

I reload again this time I drink restoration and I remove my fortify alchemy gear and put it back on.

This time it works and now I have 22k% alchemy gears.

It seems that if I do not take off fortify alchemy gears and drink fortify restoration that fortify restoration will improve fortify restoration potions. That number is the one showing up on UI.

I forget where. Maybe in inventory and may be in active effect. They differs.

The way to do this is to drink restoration and wear alchemy gear. Whether you unequip fortify alchemy gear before or after you drink restoration potion doesn't seem to matter. At least not to my knowledge.