Before-and-After Photos: Standard Setup and Consent

A before-and-after pair is only useful if every variable except the treatment is the same in both images. Fix the light, the distance, the angle, the background and how the patient is prepared, write it down as a clinic protocol, and a modest camera will give you comparable images.

Under data protection law, record photographs are processed to provide care rather than on the basis of consent, but regulators in several countries still expect the patient's explicit agreement before you take them [2]. Using any of them in marketing needs the patient's separate, explicit consent, and some countries restrict such advertising whatever the patient agrees to.

Comparison depends on the setup, not the camera

If the patient looks better in the second image because the light moved, you are seeing lighting, not a result. An excellent camera used differently twice produces two unrelated pictures that tell you nothing about what you did.

Fix the lighting. It is the largest source of false improvement. Use the same fixed artificial light every time, and control the room's other lights and any window. Daylight changes by hour and by season.
Fix the distance and focal length. Mark the floor. A patient photographed closer looks fuller in the midface for reasons that have nothing to do with filler.
Fix the angle and head position. Agree a reference, usually the Frankfort horizontal, and use the same set of views every time so the follow-up can be matched frame for frame.
Use the same background. Plain, matte, one colour, with no clinic detail that dates the image.
Prepare the patient the same way. Hair back, make-up removed, jewellery out, neutral expression. Where movement is part of what you treat, add the same set of expressions in animation.

Keep the protocol in writing rather than in your head. Its value appears months later, when someone else in the clinic takes the follow-up photograph.

Take the baseline before anything touches the patient

Photograph before marking, before anaesthetic and before any contact. Include the untreated side as well as the treated one, because patients often attribute asymmetry that was already there to the treatment.

Photograph movement when the treatment affects it. A toxin result that looks correct at rest but behaves oddly on smiling cannot be discussed sensibly without a photograph of the smile.

Clinical photographs rest on healthcare, not on consent

Clinical photographs of an identifiable person are health data, the most protected category under EU data protection law [1]. Images taken for the record are processed to provide healthcare, which normally rests on Article 9(2)(h) together with Article 6.

Consent can be withdrawn at any time. A clinic that tells patients their record photographs rest on consent implies a right to have them deleted, which collides with the retention duties of medical records.

Marketing is the opposite case. Promoting the clinic is not part of care, so it needs separate, explicit consent [1]. Explicit means an unambiguous, affirmative statement, preferably written, never inferred because the patient was pleased on the day. The two permissions never share a tick box. Marketing consent cannot be a condition of treatment, and it must be as easy to withdraw as to give.

Store images on clinic devices, not personal phones

Honouring a withdrawal means knowing where every copy is. The usual gap is the personal phone. An image taken on a practitioner's own phone is backed up automatically to a personal cloud account unless someone has turned that off. It is then outside the clinic's control and outside any processing agreement the clinic holds, and almost impossible to delete on request.

The workable setup is a clinic-controlled device, storage in the clinical record system with access controls, and a written agreement with the provider of that system. Retention then follows national medical-record law, not the clinic's preference. Deleting early is a breach, not good data hygiene.

A marketing photo is a commercial claim

A before-and-after image used in marketing is a claim about what the treatment achieves, so consumer-protection rules on misleading practices apply to it [3]. Do not retouch, filter or relight the after image. State how long after treatment the second photograph was taken and how many sessions it represents, and do not present an unusually good result as typical.

Several jurisdictions restrict before-and-after advertising for medical treatments, and the restriction applies however good your consent is [2]. In Germany, the Federal Court of Justice held in July 2025 that hyaluronic acid injections to reshape the nose or chin are operative plastic-surgical procedures under the Medicinal Products Advertising Act, so before-and-after images may not be used to advertise them to the public, for example on a website or a social media account [4]. Check the rules in every country you advertise into before building a strategy on a photo library.

Matched photos settle disputes

Most aesthetic improvement is gradual, and patients tend to remember themselves as looking better before treatment than they did. A matched pair settles that conversation in seconds, without anyone having to be wrong out loud.

Write the protocol before your first patient, and practise taking the full series under supervision until a colleague could repeat it from your notes.