Brittany Snow and Jaspre Guest’s New Organization ‘September Letters’ Shows How Writing Letters Can Improve Mental Health. Joining forces with OSEA Skincare, September Letters launched the “Wish You Were Here” campaign at OSEA Skincare Studio in Venice, California which we had the pleasure of bringing to hand paint life. The piece was visited by the co-founder, Brittany Snow, and featured in Well + Good, an online publication devoted to mental health and wellness.