You have narrowed your skin booster search down to Profhilo vs Rejuran, and you already know both names. The part that has you stuck is which one is actually right for your skin, not what either one is. Here is the short answer: they are not competitors, and the choice is not about which one is stronger. Profhilo is a hyaluronic acid bioremodeller that rebuilds skin quality, firmness, and that lit-from-within glow. Rejuran is a polynucleotide booster, made from purified salmon DNA, that repairs and calms the skin. One remodels, the other repairs. Which one fits you depends on what your skin actually needs, and Dr Samantha at Nexus reads that from a dermal assessment before she names any brand.
Profhilo vs Rejuran in 30 seconds
Why Profhilo leaves you firmer, not fuller
Profhilo is a stabilised hyaluronic acid made by NAHYCO hybrid technology, combining high and low molecular weight HA in one 2ml syringe (about 64mg of HA) with no chemical cross-linking. Injected at the BAP-9 grid, 5 standardised points across each cheek, it spreads and signals your fibroblasts to rebuild. In laboratory studies of the hybrid complex, fibroblasts showed roughly a 7-fold rise in type I collagen and a 12-fold rise in both type III collagen and elastin at 24 hours versus untreated cells (Stellavato et al., PLoS One, 2016). That is why Profhilo reads as firmer, bouncier skin rather than added volume. It is a hydration and skin-quality protocol, not a volumiser and not a skin-tightening device.
Why Rejuran repairs what Profhilo does not reach
Rejuran's active ingredient is polynucleotide: long chains of purified DNA fragments derived from salmon or trout. Rather than filling, it feeds skin repair. Polynucleotides stimulate fibroblasts to produce type I and III collagen, inhibit the MMP-1 enzyme that breaks down your existing collagen, and support tissue recovery through adenosine A2A receptor signalling, as reviewed in a 2025 Pharmaceutics paper (Kim, 2025). In practice that makes Rejuran the repair-and-resilience option: improved texture, calmer skin, and a dedicated under-eye protocol where Profhilo is deliberately not placed.
Profhilo vs Rejuran, which is right for your skin?
Lean Profhilo if
- Your overall skin looks tired or crepey
- You want firmness and glow across cheeks and jawline
- Laxity is the main concern
- You want a defined 2-session course
Lean Rejuran if
- Your main concern is texture, repair, or resilience
- Under-eye crepiness or dark circles dominate
- You have acne-scar or healing goals
- Your skin feels reactive and needs calming
Not sure which column you are in? That is normal, most people sit somewhere in between. The read is easier in person than online, which is exactly why Dr Samantha starts with an assessment, not an assumption.
Can you do both Profhilo and Rejuran?
Often, yes. Because they do different jobs, Profhilo and Rejuran layer well. One remodels the skin's structure while the other drives repair. Dr Samantha offers both at Nexus and will sometimes stage them across a plan rather than choose one. She also mixes polynucleotide into her Signature Glow Booster for patients whose main goal is under-eye repair. The layering decision, like the single-treatment decision, comes from the assessment.
What if neither one is right for you?
Profhilo and Rejuran are two of several boosters. If your skin needs a scaffold rather than remodelling or repair, an ECM matrix booster may enter the conversation, and a pure hydration job may point to a different HA booster. The full menu, and how Dr Samantha maps skin type to booster, sits on the skin booster page. This article covers the two most-compared options: Profhilo and Rejuran. The rest are chosen the same way, by what the skin asks for.
Sessions, downtime, and results for Profhilo vs Rejuran
| Treatment | Sessions | Interval | Duration of results |
|---|---|---|---|
| Profhilo | 2 sessions | 4 weeks apart | About 4 to 6 months |
| Rejuran (skin) | Usually 3 sessions | 2 to 4 weeks apart | Maintenance-based |
| Rejuran (under-eye) | Course-based | 2 to 4 weeks apart | Maintenance-based |
Downtime for both is minimal, small injection bumps that settle within a day or two. Your exact plan is confirmed at consultation.
Common questions about Profhilo vs Rejuran
The honest answer to Profhilo vs Rejuran is that neither one is universally right. The one that fits is the one matched to what your skin needs today, and sometimes that is both. Dr Samantha starts every case the same way, with a dermal assessment before she names a brand. If you want that same read for your own skin, you can arrange a consultation with the Nexus team.
