In short. Infection introduced during preparation, bruising, and the reversible options that should start the conversation about it.

Key points

  • Using the patient’s own blood removes the risk of transmitting an infection from a donor and the risk of an immune reaction to a foreign substance.
  • Those are genuine advantages and they are two specific risks.
  • The risk of what happens during preparation is not affected by where the blood came from.

The risks of this treatment are not dramatic and they are unusual in where they come from. The material is the person’s own, and the risk is in what happens to it between the arm and the face.

Infection introduced during preparation

This is the recognised risk of a point-of-care biologic and it is a consequence of the same property that makes the material attractive. Blood handled outside a controlled laboratory is a medium in which bacteria grow readily, and a preparation that sits before it is used gives them time. The variables are the environment, the technique, the equipment and the interval, and none of them is governed by a product standard because there is no product. It is a risk that belongs to the process rather than to the substance, which is why the process is worth asking about.

The ordinary risks of an injection

Bruising, swelling, discomfort and the possibility of a result the person does not like all apply, and none of them is removed by the material being autologous. At sites where the skin is thin, an uneven result is more visible and harder to correct. There is also the cost of the process itself, which is a real consideration for a treatment whose effect is temporary.

Autologous removes two risks, not risk

Using the patient’s own blood removes the risk of transmitting an infection from a donor and the risk of an immune reaction to a foreign substance. Those are genuine advantages and they are two specific risks. The risk of what happens during preparation is not affected by where the blood came from.

The temporary result

Because the material is reabsorbed, a person who wants a lasting change in shape will be treated for something the material does not provide. That is worth understanding before the first session rather than after a course of them.

The alternatives

Doing nothing belongs first, because a treatment that carries an infection risk and produces a temporary result should have to justify itself against leaving things alone. Where volume or shape is the goal, a filler is the treatment designed for it: a defined volume of a defined material that holds the space it occupies, and in the case of a hyaluronic acid filler one that can be dissolved if the result is unwanted. That reversibility lets a person see how they feel about a change before committing to one that is harder to reverse. Where skin quality is the goal, other options exist with their own evidence, and where scarring or hair is the concern, established treatments exist and a point-of-care preparation is an addition rather than a substitute.

Before agreeing to a course of treatment

  • What is this expected to do that another option would not, and on what evidence?
  • What is the protocol here, and how long passes between drawing the blood and injecting it?
  • What is the plan if the result is not what you wanted, given that the material is reabsorbed?

Which option applies is an individual clinical question, and this review does not answer it for anyone. It exists so that the process, the transience and the alternatives are visible before the decision rather than after it.

Related reading

Frequently asked questions

What is the main risk of a point-of-care preparation?

Infection introduced during preparation. Blood handled outside a controlled laboratory is a medium in which bacteria grow readily, so the cleanliness of the process, the environment and the interval before use matter. It is a risk that depends on technique rather than on the material.

What other risks apply?

The ordinary risks of an injection: bruising, swelling, discomfort and the possibility of a result the person does not like. There is also the possibility of an uneven result at a site where the skin is thin. None of these is removed by the material being autologous.

What are the alternatives?

For volume and shape, a filler is the treatment designed for it and a hyaluronic acid filler can be dissolved if the result is unwanted. For skin quality, other options exist with their own evidence. Doing nothing is a genuine option and it belongs first, because a treatment with an infection risk and a temporary result should have to justify itself.

Risks & Limitations

  • The preparation is made in the room and is not standardised, so two clinics offering the same named treatment are not necessarily offering the same material.
  • Blood handled outside a controlled laboratory is a medium in which bacteria grow, so preparation carries a risk of infection that the source of the blood does not remove.
  • The material is reabsorbed over a short period, so it does not restore volume the way a filler does.
  • There is no product authorisation and no approved indication, because there is no manufactured product to authorise.
  • Growth factors measured in laboratory work are a finding about the material and not a demonstrated clinical result.

When to Seek Care

  • Redness, warmth, swelling or pain that is increasing rather than settling after an injection.
  • Discharge from an injection site, or a fever — seek prompt clinical assessment.
  • An uneven or lumpy result, or any change in the treated area that concerns you.
  • Contact the service that performed the treatment, or the hospital’s outpatient channels, rather than relying on a website.

References & Further Reading

  • U.S. Food and Drug Administration (FDA) — guidance on autologous cellular products and point-of-care preparation
  • European Medicines Agency (EMA) and national regulators — guidance on blood-derived and autologous treatments
  • National Medical Products Administration (NMPA, China) — regulation of blood-derived preparations and devices
  • World Health Organization (WHO) — guidance on the safe preparation and handling of blood components
  • Cochrane Library — systematic reviews of platelet concentrates for skin and wound indications

Medically reviewed by Ke He, MD (何锞), Deputy Director & Head of Skin & Laser Aesthetics. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. It reviews evidence and regulation; it is not a booking page and does not recommend a treatment. Discuss your own case with a qualified clinician. To ask a question about this review, see Contact & Consultation.