Facial Mesotherapy: Principles, Active Ingredients, Evidence

"Mesotherapy" is one of those terms that fits everything. Some people call vitamin injections into the dermis mesotherapy, some call hyaluronic acid skin boosters mesotherapy, and some use the term for any superficial injection. For the professional, that vagueness is a problem, because it hides relevant differences in product, evidence and risk.

This text is a review. It does not recommend an ingredient, amount, depth or technique, which are decisions for the licensed professional, following the package insert, the product registration and the rules of their professional board. The goal is to organize what is known and what should be asked before offering it.

What is facial mesotherapy?

The original idea comes from medicine, with the proposal of injecting small amounts of substances into the skin to obtain a local effect. On the face, the stated goal is usually to improve skin quality: hydration, glow, texture, fine lines and overall appearance. The more technical term for dermal injection is intradermal therapy.

Two starting points help avoid confusion:

1. The target is the skin, not volume. Facial mesotherapy is not filler.
2. What changes is the ingredient, and each ingredient has its own logic, evidence and risk.

The dermis is the layer where collagen, elastin and vessels are concentrated, and where skin ages in quality. That is why intradermal injection makes sense as a concept. But making sense as a concept is not the same as having evidence of results.

Which active ingredients show up in practice?

The list below describes what is found in the literature and on the market, without recommending anything. Not all of them are registered for facial intradermal use.

The useful takeaway: each group has its own conversation. Lumping everything under the name "mesotherapy" prevents the professional from weighing risk and benefit.

What is known about the evidence?

The honest answer is: little, and of varying quality. The literature on facial mesotherapy includes small studies, in many cases without a control group, with different protocols, different ingredients and subjective outcomes. That makes it hard to compare and conclude.

A few cautions when reading:

• Check the study design: was there a control? Was there blinded assessment? How many patients?
• Check the ingredient: did the study test what you use, or something similar?
• Check the outcome: was it an objective measure or patient satisfaction?
• Check the follow-up time: was it short?
• Be wary of generalizing: a result with one ingredient does not apply to another.

This reasoning is in how to read a clinical trial of injectables and how to keep up with the scientific literature. For skin, there are also patient-reported outcome instruments, such as the FACE-Q, which help measure satisfaction in a standardized way.

Mesotherapy, skin booster or polynucleotides?

The terms overlap in clinical practice, which causes confusion. One way to sort them out:

When the patient asks for "mesotherapy," ask what they want and propose what meets it, using the correct name. See skin booster versus polynucleotides for a comparison of two of them.

What are the risks?

Intradermal injections are invasive procedures and carry their own risks, which the patient needs to know.

• Local reactions: erythema, swelling, pain, papules and bruising are common and transient.
• Allergic and hypersensitivity reactions, especially with complex combinations or little-known ingredients.
• Infection, including by atypical mycobacteria, when asepsis fails or the material is contaminated. See atypical mycobacteria after a procedure.
• Nodules and granulomas, delayed, more associated with poorly characterized materials.
• Post-inflammatory hyperpigmentation, in predisposed skin.
• Unsatisfactory results, which can frustrate the patient and damage the relationship.

Asepsis and traceability weigh heavily. The professional should keep the lot, expiration date and origin of the product. See traceability of injectables and biosafety in facial harmonization.

Registration, package insert and off-label use

The most delicate legal point is that many products used in mesotherapy are not registered for the facial intradermal route, or are registered for another purpose. That is not necessarily illegal, but it requires care:

1. Check the product's health registration with ANVISA, Brazil's health regulator (see how to look up an injectable's registration).
2. Identify the indication in the package insert and compare it with your use.
3. Disclose off-label use to the patient, when applicable, and record it in the consent form.
4. Avoid compounded or unsourced products for injection.
5. Follow the rules of your professional board on prescribing and administering.

How do you talk to the patient?

Patients tend to hear "mesotherapy" as a synonym for "vitamins for the skin." Clarify what you use and what to expect.

Document the decision in the patient record and update the informed consent. For the documentation routine, see also the pre-procedure checklist in facial harmonization.

Does Harmy simulate mesotherapy?

No. Harmy works with volume in the marked areas, and it does not change skin, texture or glow. The app's prompt prohibits skin retouching, so the projection does not represent any skin quality effect.

This helps keep the conversation honest: the app shows what volume-based facial harmonization does, and you explain the rest in words and with the literature. For using the app, see how to use Harmy.

Review quiz

Facial mesotherapy can have a place in the skin plan, as long as the professional knows what is being injected, understands the limits of the evidence, informs the patient and documents. The name may be generic, but the practice should not be.