Rejuran uses injectable polynucleotides to support skin repair, while PRP uses concentrated platelets prepared from the patient’s own blood. Rejuran may offer a more standardized treatment experience, whereas PRP appeals to patients who prefer an autologous option. Neither treatment is universally better—the right choice depends on your skin concerns, medical history, budget, and treatment plan.

What Is Rejuran?

Rejuran is an injectable skin-rejuvenation treatment containing polynucleotides, commonly called PN. These purified DNA fragments are intended to support the skin’s natural repair processes.

Unlike dermal fillers, Rejuran is not primarily used to create volume or reshape facial features. It is generally chosen to improve:

• Fine lines and early signs of aging
• Thin or crepey skin
• Uneven skin texture
• Enlarged pores
• Loss of elasticity
• Under-eye skin quality
• Overall skin resilience

Clinical research on injectable polynucleotides reports promising improvements in areas such as texture, wrinkles, hydration, and elasticity. However, treatment methods vary, and stronger clinical evidence is still needed to establish which patients benefit most.

What Is PRP?

PRP stands for platelet-rich plasma. During treatment, a small amount of the patient’s blood is drawn and processed in a centrifuge. The platelet-rich portion is then injected into the skin or applied during treatments such as microneedling.

Platelets contain growth factors involved in tissue repair. In aesthetic dermatology, PRP may be used for:

• General facial rejuvenation
• Fine lines and rough texture
• Dull-looking skin
• Acne-scar treatment
• Recovery after laser procedures
• Under-eye skin concerns
• Hair-loss treatment

Research suggests that PRP may provide modest improvements in aging skin, with some of the more consistent evidence relating to facial texture. However, study methods and PRP preparation protocols differ considerably.

The Main Difference Between Rejuran and PRP

The most important difference is the substance being injected.

Rejuran is a manufactured polynucleotide product with a defined formulation. PRP is prepared from your own blood, so its composition can vary depending on your platelet count, the processing system, and the clinic’s protocol.

This means Rejuran may provide greater consistency between sessions. PRP is autologous, making it attractive to patients who prefer a treatment derived from their own body.

PRP requires a blood draw before treatment. Rejuran does not require blood collection, but patients should tell their doctor about allergies, medical conditions, pregnancy, medications, and previous reactions to injectable products.

Which Is Better for Fine Lines and Elasticity?

Rejuran is often selected for fine lines, reduced elasticity, and thin or crepey skin. It is commonly used across the face and in delicate areas such as around the eyes.

PRP can also be considered for early signs of aging, particularly when the goal is gradual improvement in overall skin quality. However, results may be less predictable because the platelet concentration and preparation technique can differ between clinics.

For patients mainly concerned about fine lines and elasticity, Rejuran may be the more targeted option. For patients who prefer an autologous treatment and do not mind having blood drawn, PRP may be appealing.

Which Is Better for Acne Scars?

PRP is frequently combined with microneedling, subcision, or fractional laser treatments for acne scars. Some studies suggest that adding PRP to these procedures may improve results or support recovery. Nevertheless, a 2024 evidence review found that the certainty of evidence was too low to support a clear clinical conclusion for PRP combined with microneedling or laser.

Rejuran may improve general texture and support skin repair, but it cannot fully release deep tethered scars or replace resurfacing procedures.

For noticeable acne scars, the most appropriate treatment often depends on scar type:

• Subcision may be considered for rolling or tethered scars.
• Fractional laser or RF microneedling may help with uneven texture.
• Focal treatments may be necessary for narrow ice-pick scars.
• Rejuran or PRP may be included as supportive treatments.

A personalized combination plan is usually more effective than relying on either injectable alone.

Rejuran vs PRP for the Under-Eye Area

Both treatments may be used for thin, dry, or finely lined under-eye skin.

Rejuran is particularly popular for improving crepey texture without creating the fullness associated with traditional fillers. PRP may be suitable for patients who want gradual rejuvenation using their own plasma.

Neither treatment can reliably remove prominent eye bags, eliminate deep tear troughs, or correct significant skin laxity. Those concerns may require fillers, tightening procedures, or surgical assessment.

The under-eye area contains delicate structures, so treatment should be performed by an appropriately trained medical professional.

Which Treatment Gives More Natural Results?

Both Rejuran and PRP generally produce subtle, gradual changes rather than immediate facial transformation. They are intended to improve skin quality rather than noticeably change facial shape.

Rejuran results may appear more consistent because the product has a standardized formulation. PRP outcomes can vary according to the patient’s blood and the preparation method.

Patients should expect progressive improvement rather than instant “glass skin.” Multiple sessions may be recommended, followed by maintenance treatments based on how the skin responds.

Pain and Downtime

Both treatments involve injections, so discomfort is possible. Clinics commonly apply topical numbing cream before the procedure.

After Rejuran, patients may experience:

• Small raised injection bumps
• Redness
• Mild swelling
• Tenderness
• Occasional bruising

The bumps often settle within a few days, although recovery varies.

PRP may also cause redness, swelling, tenderness, and bruising. Downtime can be longer when PRP is combined with microneedling or laser treatment.

If you are visiting Seoul, avoid scheduling either procedure immediately before an important event or departure. Allow extra recovery time in case swelling or bruising lasts longer than expected.

Safety Considerations

Rejuran and PRP should be performed in a licensed medical clinic after a proper consultation.

PRP is derived from the patient’s own blood, which reduces the likelihood of an allergic reaction to the injected material. However, it still carries risks related to blood collection, injections, contamination, bruising, and infection.

Rejuran may cause temporary swelling, bruising, redness, or small lumps. Patients should discuss relevant allergies and medical conditions with their doctor before treatment.

Tell the clinic if you:

• Take blood-thinning medication
• Have a bleeding or platelet disorder
• Have an active skin infection
• Are pregnant or breastfeeding
• Have an autoimmune condition
• Have a history of severe allergies
• Recently received another injectable or energy-based treatment

Do not stop prescribed medication unless the prescribing doctor advises you to do so.

Can Rejuran and PRP Be Combined?

Some clinics combine regenerative injectables with laser resurfacing, microneedling, or other skin treatments. Rejuran and PRP may also be used within the same overall treatment plan, although receiving both is not automatically necessary.

Combining too many treatments can increase swelling, irritation, cost, and downtime. A more focused plan based on a specific concern is generally preferable to choosing multiple procedures simply because they are popular.

Rejuran or PRP: Which Should You Choose?

Rejuran may be more suitable if you want:

• A standardized injectable product
• Improvement in fine lines and crepey skin
• Treatment for delicate under-eye skin
• More consistent dosing between sessions
• General improvement in skin texture and elasticity

PRP may be more suitable if you want:

• A treatment prepared from your own blood
• Gradual, natural-looking rejuvenation
• A supportive treatment alongside microneedling or laser
• Treatment that may also be incorporated into an acne-scar plan
• To avoid a manufactured injectable product

Final Thoughts

Rejuran and PRP both aim to support skin rejuvenation, but they are not interchangeable. Rejuran offers a standardized polynucleotide formula and is often selected for fine lines, elasticity, and thin skin. PRP uses the patient’s own platelets and may be especially useful as part of a broader rejuvenation or acne-scar treatment plan.

Neither treatment can replace facial lifting, deep-scar correction, or volume restoration when those are the primary concerns. Before choosing, consult a qualified medical provider who can examine your skin and explain the expected benefits, risks, downtime, and number of sessions.