The very first Battle Scars service has been operational for four years and still going strong: their private Facebook group is providing support to anybody affected by self-harm:

Suitable for people of any age, anywhere, who either self-harm (anything from scratching and cutting to overdosing and eating disorders) or support someone who does.

A large admin team check every post and comment and strictly enforce the group rules (no graphic photos or graphic descriptions of self-harm allowed).

Rules must be agreed to before application to join will be considered.