Reymond, an alternative practitioner, pharmaceutical representative, and specialist in esthetic lip treatment, and Köhler, a specialist in esthetic surgery, non-surgical techniques, and esthetic laser treatments in Switzerland, detail 45 lip injection techniques for esthetic treatment. They describe the beauty, function, anatomy, aging process, shape and expression, and region of the lips; consultation, patient documentation, and anesthetic methods; hyaluronic acid dermal filler products for different uses; complications, side effects, and follow-up assessment; practice fittings and facilities, materials, and patient management; and general injection techniques. They then detail the 45 techniques, with information on patient selection, planning, treatment methods and variants, possible side effects, and treatment protocols, with photos and links to videos.