Typical results visible in Rejuran before and after photos include a significant improvement in overall skin texture, a reduction in the depth and appearance of acne scars and fine lines, diminished pore size, and a more hydrated, plump, and even-toned complexion. These changes are not dramatic overnight transformations but rather a progressive, natural-looking rejuvenation that unfolds over several weeks as the polynucleotide chains within the injection work to fundamentally repair and regenerate damaged skin cells from within.
The core mechanism of Rejuran, which sets it apart from many other skin boosters, is its active ingredient: Polynucleotide (PN). PN are long-chain molecules derived from purified salmon DNA. Their structure is biocompatible and shares similarities with human DNA fragments. When injected into the dermis, these PN fragments act as powerful biological signals. They don’t just add temporary volume; they actively recruit the body’s own repair mechanisms. Think of them as instructions that tell your fibroblasts—the cells responsible for producing collagen, elastin, and hyaluronic acid—to “wake up” and get back to work. This process, often called biorevitalization, leads to genuine structural improvements in the skin.
To understand the timeline and specific changes, it’s helpful to break down the results week by week, correlating them with the biological processes happening beneath the surface.
| Time Period | Biological Process | Visible Changes in ‘After’ Photos | Supporting Data / Clinical Findings |
|---|---|---|---|
| Week 1-2 | Initial hydration and inflammatory healing response. PN fragments begin cellular signaling. | Subtle improvement in skin brightness and hydration. Some initial redness or swelling from the procedure subsides. Pore appearance may look slightly refined due to better skin hydration. | A 2019 study published in the Journal of Cosmetic Dermatology noted a measurable increase in skin hydration levels by over 30% within the first two weeks post-treatment. |
| Week 3-4 | Enhanced fibroblast activity begins. Early-stage neocollagenesis (new collagen formation) starts. | Skin texture becomes smoother to the touch and in photos. A “glow” emerges as microcirculation improves. Fine lines, especially around the eyes and mouth, begin to appear softened. | Dermoscopic analysis often shows a decrease in skin surface roughness by approximately 15-20% during this phase. |
| Month 2-3 | Peak of collagen and elastin production. Significant tissue remodeling occurs. | This is when the most notable changes become apparent in side-by-side comparisons. Acne scars show visible shallowing, with rolling scars becoming less pronounced. Skin elasticity improves, giving the face a firmer, more lifted contour. Pores continue to appear smaller and less clogged. | Clinical assessments using the Echelle d’évaluation clinique des cicatrices d’acné (ECCA) grading scale have demonstrated a 25-40% improvement in atrophic acne scar severity after a full treatment series. |
| Month 4-6 | Maturation of new collagen fibers and stabilization of results. | The results look fully natural and integrated. The skin’s overall quality is enhanced, appearing healthier, more resilient, and consistently even-toned. The effects are not a “filled” look, but one of improved skin density and health. | Ultrasound imaging of the dermis can show an increase in dermal thickness, sometimes by up to 10-15%, confirming the structural reinforcement provided by new collagen. |
Beyond the general timeline, the results are highly dependent on the specific skin concern being addressed. A one-size-fits-all description doesn’t do justice to the treatment’s versatility.
For individuals primarily seeking treatment for acne scarring, the before and after photos tell a story of texture transformation. The “after” photos typically show a marked reduction in the shadowing and unevenness caused by atrophic scars. The skin’s surface evolves from a landscape of peaks and valleys to a much smoother plane. This is because the new collagen formation fills in the depressed areas from the inside out, effectively elevating the base of the scar. It’s crucial to manage expectations; while Rejuran is excellent for improving scar appearance, it may not completely erase very deep icepick scars, which often require combination therapy with subcision or laser treatments for optimal results.
When the goal is anti-aging and wrinkle reduction, the results are more about suppleness and resilience than simply erasing lines. Before photos often show skin with fine, dry-looking lines and a slightly crepey texture. The “after” photos reveal skin that looks plumper and more hydrated, which naturally causes fine lines to become less visible. The improvement in skin elasticity also contributes to a subtle lifting effect, particularly in the lower face and jawline. The data supports this: patient satisfaction surveys often report over 90% of subjects feeling their skin was “more supple” and “refreshed” after a series of treatments.
The impact on pore size and skin texture is another key area. Enlarged pores are often a result of lost skin elasticity and sebum buildup. Rejuran’s dual action of stimulating new collagen (which tightens the skin around the pore) and enhancing overall skin health (leading to better regulated sebum production) results in pores that appear noticeably tighter and less congested in post-treatment photos. The skin’s surface reflects light more evenly, giving it a refined, porcelain-like quality.
Finally, the improvement in overall skin tone and hydration is a universal benefit. Dull, tired-looking skin in the “before” picture is replaced by a radiant, dewy complexion in the “after.” This isn’t just surface-level moisture; the PN molecules significantly improve the skin’s ability to retain water, leading to a lasting hydrated state. This enhanced hydration is the foundation for all the other improvements, as well-hydrated skin cells function more efficiently and appear healthier. For a deeper dive into the science and real-world patient experiences with this treatment, a great resource is Rejuran.
It is also critical to understand the factors that influence these outcomes. The skill of the practitioner is paramount. The injection technique—whether it’s a linear threading, fanning, or point-by-point micro-droplet deposition—can dramatically affect how the PN is distributed and, consequently, the final result. Furthermore, a patient’s age, skin condition, and lifestyle habits (like sun exposure and smoking) play a significant role. Younger patients with moderate skin damage may see near-perfect results, while older patients with significant photoaging will see substantial improvement but may require ongoing maintenance sessions. Most practitioners recommend an initial series of 3-4 sessions, spaced about 4 weeks apart, to achieve optimal collagen stimulation, followed by a maintenance session every 6 to 12 months to prolong the effects.
When critically analyzing before and after photos, it’s important to look for consistency in lighting, angle, and facial expression. Authentic results will show a natural enhancement, not a completely different person. The skin should look like a healthier, revitalized version of itself. The absence of an unnatural “over-filled” shine or distorted facial contours is a hallmark of a well-performed Rejuran treatment, underscoring its role as a bioregenerative treatment rather than a simple filler.