Skinbooster or polynucleotides: differences
The patient who comes in asking for "PDRN" and the one who comes in asking for "skinbooster" usually have the same concern: skin without glow, thin, with fine lines and uneven texture. What changes is the product they saw on social media. For the professional, the useful question is not which of the two is trending, but which mechanism answers the concern, what each product's registration allows and what can honestly be promised.
This guide compares the two classes side by side. What polynucleotides are, where they come from and the difference between PDRN and PN are covered in polynucleotides in HOF. Here the focus is the decision. There are no doses, points or technique: that is a decision for the licensed professional, following the product's instructions and the rules of their professional council.
What is each one, in one sentence?
- Skinbooster: generally hyaluronic acid with little or no cross-linking, distributed diffusely in the skin to hydrate and improve glow and texture. Some products include additives, such as amino acids, antioxidants or vitamins.
- Polynucleotides (PDRN and PN): purified DNA fragments, generally from the reproductive cells of fish in the salmon family, studied for a described effect of repair signaling, inflammation modulation and stimulation of fibroblast activity.
Hyaluronic acid acts mainly through physics: it attracts and holds water in the tissue. Polynucleotides are described as biological signaling agents. This difference in mechanism explains almost everything that follows.
How do the two classes compare?
| Aspect | Skinbooster (hyaluronic acid) | Polynucleotides (PDRN and PN) |
|---|---|---|
| Main mechanism | Hydration through water retention in the tissue | Repair signaling and inflammation modulation, as described in the literature |
| Concern that fits best | Dehydrated skin, no glow, superficial fine lines | Thin, fragile skin with altered texture or in recovery |
| Effect on volume | Minimal, not a filler | None of note |
| Reversal with hyaluronidase | Yes, the hyaluronic acid component can be broken down | Does not apply to polynucleotides |
| Volume of evidence in aesthetics | Larger and older | Smaller, with small studies often tied to manufacturers |
| Registration in Brazil | There are injectable products registered as medical devices, with indications defined in each registration | A 2025 opinion pointed to PDRN products registered as topical cosmetics; check the current registration |
| Point of attention in the medical history | Allergies and prior reactions to fillers | Allergy to fish and fish proteins, cited as a precaution |
Which concern calls for which approach?
The most common mistake is choosing by product. Classify the concern first:
| Main concern | What is usually behind it | Where each class fits |
|---|---|---|
| "My skin is dull and dry" | Skin dehydration | Skinbooster is the most studied approach for this goal |
| "My skin has become thin and fragile" | Dermal thinning, photoaging | Both come up in the conversation; polynucleotides are cited for their repair rationale, with evidence still limited |
| "I have fine lines on my skin" | Texture and hydration | Skinbooster, with the expectation of a subtle change |
| "My under-eye circle is dark" | Pigment, visible vessel or groove | Neither solves pigment or groove; see types of under-eye circles |
| "My face is sagging" | Laxity and loss of support | Neither; the conversation is about collagen biostimulator or other approaches |
| "I lost volume" | Loss of fat and bony support | Filler, not skinbooster or polynucleotides |
When the concern is skin quality and there is a product registered for the intended use, both classes can enter the conversation. When the concern is volume, groove, pigment or laxity, neither is the right tool, and recommending one just because the patient asked leads to frustration.
What about products that combine the two?
"Skinbooster with PDRN" appears a lot in searches. These are products that combine hyaluronic acid, generally non-cross-linked, with polynucleotides in the same formulation. Three points matter:
- Registration applies to the whole product. You cannot add up the category of each component. What defines the route of use and the indication is the registration of the combined product.
- The evidence belongs to the product, not to the sum. A study on hyaluronic acid alone and another on PDRN alone do not prove the effect of the mixture.
- Reversal is partial. Hyaluronidase breaks down the hyaluronic acid component. The rest follows the behavior described by the manufacturer.
Some also plan the two classes in separate sessions. There is no standardized protocol for this: the number of sessions, intervals and order vary between manufacturers and should not be presented to the patient as a rule.
What to expect from each over time
| Moment | Skinbooster | Polynucleotides |
|---|---|---|
| First days | Papules at the points, mild swelling and possible bruises, which usually subside within a few days | Similar local papules and swelling, which generally also subside within days |
| First weeks | Patient usually notices more glow and hydration | Change is usually slower and less noticeable at first |
| After the series of sessions | Hydration and texture effect, subtle | Described effect on skin quality and thickness, with wide variation between patients |
| Months later | The effect fades and the patient usually needs maintenance | Duration still little studied; maintenance according to reassessment |
For the duration and number of skinbooster sessions, there are patient-facing answers in how long skinbooster lasts and how many skinbooster sessions. For polynucleotides, the honest answer is that duration data are scarce and each manufacturer proposes its own scheme.
What are the risks of each class?
The most reported effects in both classes are local: pain at the injection, papules, swelling, redness and bruising. A few points are specific:
- Skinbooster: a superficial product in thin skin can leave a visible irregularity or a bluish tone; nodules are described less often. Having hyaluronidase available is part of safety, as with any use of hyaluronic acid.
- Polynucleotides: because of the origin of the raw material, allergy to fish or fish proteins is usually listed as a precaution or contraindication. Include the question in the medical history and record the answer.
- Both around the eyes: the periorbital area has vessels that connect with the ocular circulation. A fluid product does not eliminate the vascular risk.
How to explain the choice to the patient
The patient often arrives with a ready-made idea. The conversation works best when it moves away from the product name and toward what their skin needs.
If the patient insists on a product whose registration does not provide for injectable use, explain the reason for declining and record the conversation. To handle this kind of request in the consultation, see patient objections and responses. The informed consent should cite the product, the available evidence and the expected effects; a starting point is in the informed consent template for skinbooster, to be adapted and reviewed with a lawyer and with the rules of your professional council.
And in Harmy?
For building the price per session and per cycle, the logic is in how to price skinbooster, and the comparison with biostimulator for the patient is in skinbooster or biostimulator.
Checklist for deciding between skinbooster and polynucleotides
- Concern classified: hydration, skin quality, volume, pigment, vessel or laxity.
- If the concern is not skin quality, another approach was discussed.
- Registration of each product checked with ANVISA: category, route of use and indication.
- Practice within the rules of your professional council confirmed.
- Medical history with allergies, including fish and fish proteins when a polynucleotide is involved.
- Expectations recorded in the patient's own words.
- Hyaluronidase available when hyaluronic acid is involved.
- Specific consent, standardized photos and a record of product, lot and date.
Frequently asked questions
What is the difference between skinbooster and PDRN?
The most common skinbooster is hyaluronic acid with little or no cross-linking, aimed at skin hydration and glow. PDRN is a purified DNA fragment, studied for a described effect of stimulating tissue repair. They are different classes, with different mechanisms and different regulatory status.
Is skinbooster with PDRN better than regular skinbooster?
There is no solid comparative basis to say so. Products that combine hyaluronic acid and polynucleotides exist, but the indication and regulatory category apply to the product as a whole, and comparative evidence is still limited.
Can injectable PDRN be used in Brazil?
A 2025 opinion from the CRM-PR (the regional medical council of Paraná) recorded that the PDRN products found in the ANVISA database were registered as topical cosmetics. Before any indication, check the registration of the specific product: category, route of use and approved indication.
Can skinbooster and polynucleotides be done together?
Manufacturers and professionals describe combinations, but there is no standardized protocol. The decision depends on the concern, on what each product's registration allows and on the judgment of the licensed professional, following the rules of their professional council.
Harmy images are illustrative simulations generated by AI from the patient's photo to support the conversation between practitioner and patient. They are not a promise of results. Indication, technique, product and volume are solely the decision of the licensed practitioner. This content is for information only and does not replace a clinical assessment.