Back in December, several amazing, fellow community members received the Glamglow #Glittermask Gravitymud Firming Treatment as gratis from Sephora.
From what I can remember, the reviews were mixed, but the general consensus was that the mask was more of a novelty item.
I'll link the thread below so you can look through it.
THANK YOU Sephora, Glamglow, Kate Somerville, Marc Jacobs and Tarte!:
I hope this helps!