The best-known Bach flower remedy is the Rescue Remedy, a pre-blended combination of Rock Rose, Impatiens, Clematis, Star of Bethlehem and Cherry Plum extracts.

Since this is a homeopathic mixture, the concentration of these plants is too dilute to quantify and is not substantially different than taking a placebo, according to mainstream science; dilutions below Avogadro's Number are common

Rescue Remedy is so-called because the ingredients are believed by advocates to relieve stress, anxiety and panic attacks. Rescue Remedy is taken at need, and it is available either in a small spray-bottle, in a glass bottle with an eye-dropper, or as a "rescue cream" to be rubbed onto the skin. Drops are generally taken under the tongue, as needed.