Can someone tell me the directions for this product? Thanks!

I have fine hair. This is my holy grail of conditioners.I use it with every shower - shampoo, apply a flat tblsp to your hair ( my hair is mid back), comb through, put it up w a clip, allow to absorb for about 5-10 min.Deep condition: apply to moist hair, comb through, put shower cap on, let it sit for 30min, rinse.Your hair will thank you!

Can I leave this in overnight?

We typically don't recommend overnight usage of this mask. It is a rinse out product, also. If you are looking for an overnight repair treatment, please refer to our Don't Despair, Repair! Gel-to-Oil Overnight Repair Treatment. Thank you!

Can it be used on dry hair? Then shampoo it off?

You can use it before shampooing, but your hair has to be saturated

Is this an authentic briogeo product?

Hi! Yes, all products being sold, and shipped by Briogeo are authentic, as they are sold directly by us :) We do have several other valued retail partners on Amazon as well.