Wrinkle free injections are currently one of the most popular non-surgical cosmetic treatments. They are a simple, quick and effective method of treating fine lines.
The product used is a prescription medicine and so needs to be administered by fully trained medical personnel. The injections work by blocking the nerve impulses supplying the muscles, leading to relaxation of the muscles.
The result is a softening of facial lines and wrinkles, giving a more youthful, fresher appearance.
Areas most suitable for injecting are

The muscles used in frowning (vertical lines between the eyebrows)

The muscles used in raising the eyebrows (horizontal forehead lines)

The muscles used in laughing (laughter lines, crows feet by the eyes)
The injections are not generally used in the lower half of the face as it can risk changing the muscles used in smiling. Dermal fillers are more appropriate for this area (see below)
The overall effect can be as subtle as you wish. Facial movement and expression is retained and lines and wrinkles are smoothed away.
The practitioner will discuss your objectives and expectations during your initial consultation.