Alessandra Steinherr is a beauty legend. The beauty editor at Glamour magazine, Alessandra is an instagram phenomenon, with more than 100,000 followers who literally hold onto her every word as she gives brilliant advice about beauty and skincare. Last month Alessandra Steinherr made a visit to Selfridges in Birmingham, for a Q&A with Selfridges beauty guru Rose Gallagher about all things beauty generally, and specifically about La Mer products. Here are some of the key points from the chat. On Instagram “…I love Instagram, it is my fave thing. I love it when I get comments and I can share my knowledge and answer questions. I have met and…