No. Not required at all.

This is the go to video series for lucid supplements:
YouTube - ‪LDS Tutorial Pt. 1‬‏

BTW, the amount of B6 in a glass of apple juice is paltry compared to even the lowest dosages of supplements or even a multi-vitamin.

I also find that fish oil tends to have a positive increase in clarity and memory of dreams.

I do take the galantamine+choline+l-theanine combo from time to time and really helps to get lucid if done properly.