Key takeaways
- Rejuran works by delivering polynucleotides directly into the dermis, where they gently support the skin’s natural repair and renewal processes, rather than targeting concerns at the surface level.
- The mechanism is gradual and cumulative by nature. Fibroblast activity may be supported over a course of sessions, which means any possible changes are more often seen as part of a planned treatment journey, rather than after a single appointment.
- Individual responses vary considerably, and outcomes are never guaranteed. Under Australian health regulations, sitting down to chat with a qualified medical professional is an essential first step before any treatment proceeds.
If you’ve already done some research on Rejuran treatments in Melbourne and found yourself wanting to understand a little more than the surface-level explanation, you’re in the right place.
Most introductions to the treatment cover the basics. Polynucleotides, salmon DNA, and refreshing the skin. But understanding how Rejuran actually works once introduced is a deeper conversation, and one that’s helpful to have before making any decisions.
In this post, we’ll cover how Rejuran is delivered, how it interacts at the cellular level, how your skin may respond, and what you can gently expect going forward.
How Rejuran is delivered to the treatment area
Rejuran is built around polynucleotides, long-chain DNA fragments sourced from salmon that the body may recognise as biocompatible rather than a foreign substance.
That biocompatibility is not by chance. It sits at the heart of what the treatment is intended to do once introduced.
And where it reaches is just as important. Rejuran is administered directly into the dermis, the deeper structural layer of the skin, by a qualified medical professional.
This is not a surface treatment. Polynucleotides sitting at the skin’s outer layer would have little meaningful opportunity to interact with the repair and renewal processes happening beneath it.
The dermis is where the skin’s structural activity is most concentrated. Collagen, elastin, and the cells responsible for producing them all reside here. Delivering polynucleotides directly into this environment is what allows Rejuran to engage with the skin at the level where change may become possible, rather than working around it.
It is also why this is not a treatment that can be replicated at home or through topical products. The delivery itself is a clinical procedure, performed by a trained practitioner in a controlled setting, and that precision is part of what defines how Rejuran works.
Individual responses will vary, and sitting down to chat with a qualified medical professional is an essential first step before any treatment is considered.
How Rejuran works at a cellular level
Once polynucleotides are introduced to the treatment area, a gentle biological interaction begins. The skin’s cellular environment contains fibroblasts, the cells primarily responsible for producing collagen and elastin. These are the proteins that give skin its structure, firmness, and ability to bounce back.
As the skin ages or is affected by environmental stressors, fibroblast activity can slow, and the visible signs of that slowdown are what most people are trying to address when they explore treatments like Rejuran.
Polynucleotides may help support fibroblast activity by providing cellular signals that encourage the skin’s natural repair and renewal processes. Rather than introducing a foreign compound that overrides the skin’s biology, the mechanism is designed to work in harmony with it.
The body may recognise polynucleotides as a naturally occurring substance and respond accordingly, engaging its own processes rather than simply reacting to something external.
This is not an immediate or dramatic shift. The cellular response to polynucleotides is gradual by nature, reflecting the way the skin’s own repair processes actually function. This is not a treatment that delivers overnight results, and understanding that distinction is important when forming realistic expectations.
How the skin responds at a cellular level will also vary from person to person depending on their unique biology, skin condition, and lifestyle factors. Booking an aesthetic consultation with a qualified practitioner is an essential step to understand what that process may look like for your skin specifically.
How the skin’s structure may respond
As polynucleotides begin to engage with the skin’s cellular environment, the changes that may follow are structural rather than superficial.
While many cosmetic treatments focus on the appearance of the skin from the outside, Rejuran is designed to support what is happening within the dermal layers, and this difference influences the subtle changes that may gradually become visible.
Collagen and elastin production are central to this. As fibroblast activity is supported over the course of treatment, the skin’s structural framework may begin to reflect that.
Skin that has felt less firm, less resilient, or less hydrated than it once did may gradually respond as the underlying architecture is supported from within. Improvements in texture, tone, and overall skin quality are the areas most commonly associated with this structural response, reflecting the wider Rejuran benefits linked to supporting the skin from within.
A single session is unlikely to reflect the potential of what the treatment may offer. The structural shift that Rejuran is designed to support builds progressively, which is why a series of sessions is often discussed in clinical settings rather than a standalone appointment.
As with everything related to this treatment, individual responses vary considerably. The degree to which the skin’s structure may respond depends on a range of personal factors that can only be properly assessed through sitting down to chat with a qualified medical professional.
Supporting the skin’s natural reset
Rejuran is not designed to change the skin.
Instead, this treatment aims to support it in doing what it is already capable of. This sits at the heart of bio-regenerative treatments and is what separates it from treatments that work by adding volume, relaxing, or resurfacing.
The concept of a biological reset is not about reversing time or guaranteeing a particular outcome. Instead, it focuses on creating the conditions within the skin’s own environment that may allow its natural processes to function more effectively.
For skin that has been affected by ageing, sun exposure, lifestyle factors, or simply the accumulation of daily stress, this kind of support may be helpful to consider.
Polynucleotides are broken down naturally by the body over time, which means the treatment does not leave a permanent foreign presence in the skin.
What it might leave behind is a dermal environment that has been supported to renew itself more effectively, along with the gradual visible changes that can follow. Following appropriate Rejuran aftercare may help support this natural healing process.
It is important to approach this with realistic expectations. The biological reset that Rejuran is designed to support is a process, not an event.
How that process unfolds will differ from person to person, and the only way to understand what it may mean for your skin specifically is through sitting down to chat with a qualified medical professional.
Professional standards at Luxe Lips
At our cosmetic clinic in Melbourne, our care is grounded in medical ethics and quiet clinical responsibility. Every treatment pathway is approached as a medical process, with established health protocols and safety guiding each step.
Across our clinics in Moonee Ponds, Camberwell, and Brighton, our medical professionals carry out a thorough screening process for every person. This includes reviewing medical history, assessing anatomical suitability, and considering psychological readiness. In line with local guidelines, this evaluation helps determine whether a proposed plan aligns with your health.
Practitioners proceed only when a treatment is clinically appropriate. If a procedure does not align with your anatomy or health profile, we will explain why and discuss what that means for you. The focus is always on clear information and maintaining a clinical environment where safety and ethical standards come first.
Because responses and circumstances vary, a consultation is required to determine suitability before Rejuran treatment is considered.
Note: Individual responses vary. A consultation with a qualified professional is required to determine the suitability of any treatment for your specific needs.
Questions we’re often asked about how Rejuran works
Rejuran works by delivering polynucleotides into the dermis, the deeper structural layer of the skin, where they support the skin’s natural repair and renewal processes. By working beneath the surface, the treatment is designed to encourage fibroblast activity, which is associated with the production of collagen and elastin that help maintain skin structure and resilience.
Because this process works with the skin’s own biology, any visible changes are gradual and cumulative rather than immediate. Polynucleotides provide cellular signals that may assist the skin’s natural healing response, with outcomes varying depending on skin condition, lifestyle, and overall health.
If you’d like to understand whether this approach may be suited to your skin, sitting down to chat with a qualified medical professional is the most appropriate first step.
Rejuran differs from other skin treatments by working within the dermis to support the skin’s natural repair and renewal processes, rather than adding volume, relaxing muscle activity, or resurfacing the skin. As a polynucleotide-based, bio-regenerative treatment, it focuses on encouraging fibroblast activity associated with the production of collagen and elastin, which help maintain the skin’s structure and resilience.
Many cosmetic treatments aim to change the skin’s appearance from the outside. In contrast, Rejuran is designed to work with the skin’s own biology, supporting its underlying structure rather than altering it through external or mechanical means. This distinction is why it is often described as a bio-regenerative approach rather than a corrective one.
Rejuran is not intended to add volume, relax muscles, or resurface the skin. For those interested in treatments that align with the skin’s natural biological processes, sitting down to chat with a qualified medical professional is the most appropriate way to explore whether this approach may be suitable for their needs.
Rejuran works gradually, with most people beginning to notice subtle changes within a few weeks, as the treatment supports the skin’s natural repair and renewal processes. Because it is a polynucleotide-based, bio-regenerative treatment, the timeline reflects the way the skin heals and rebuilds itself rather than producing immediate results.
Results are cumulative, meaning a series of sessions is more commonly associated with meaningful change than a single appointment. The timing and degree of visible improvement can vary depending on skin condition, lifestyle, and individual biology, so outcomes are never guaranteed.
Understanding realistic expectations is an important part of any cosmetic procedure. Sitting down to chat with a qualified medical professional is the best way to explore how this timeline may apply to your skin and whether the treatment is suitable for your needs.
Rejuran and PRP (Platelet-Rich Plasma) are both bio-regenerative treatments that work with the body’s natural biology to support skin repair, but they differ in their mechanisms of action.
PRP uses concentrated platelets derived from the patient’s own blood, which release growth factors that assist the skin’s healing processes.
In contrast, Rejuran delivers polynucleotides sourced from salmon DNA directly into the dermis, where they may support fibroblast activity associated with collagen and elastin production.
While PRP relies on the regenerative signals present in the patient’s own blood, Rejuran introduces biocompatible polynucleotides designed to work within the skin’s structural environment. Because of these complementary mechanisms, the two treatments may sometimes be considered together, depending on an individual clinical assessment.
Rejuran supports collagen production indirectly by delivering polynucleotides into the dermis, where they may encourage fibroblast activity. Fibroblasts are the cells responsible for producing collagen and elastin, the key proteins that help maintain the skin’s structure, firmness, and resilience.
Rather than stimulating collagen directly, Rejuran is designed to support the skin’s natural repair and renewal processes, creating an environment in which these cells can function more effectively.
According to Healthdirect Australia, collagen plays a vital role in maintaining skin strength and firmness, and its production naturally slows with age. Supporting the biological processes associated with collagen production is where much of the clinical interest in polynucleotide treatments arises.
Individual responses vary, and results are not guaranteed. Sitting down to chat with a qualified medical professional is an essential first step before any treatment plan is considered.
