Rejuran vs Juvelook for Acne Scar Improvement
Rejuran vs Juvelook for Acne Scar Improvement
Acne scars often require treatments that go beyond surface resurfacing, focusing on dermal regeneration, collagen stimulation, and skin quality improvement. Two widely used injectable treatments in Korea for this purpose are Rejuran and Juvelook. While both improve acne scars over time, they work through different biological mechanisms and are suited for different scar patterns.
What Is Rejuran?
Rejuran is a polynucleotide (PN) injection derived from salmon DNA that focuses on skin healing and regeneration at a cellular level.
Key features:
- PN-based skin repair stimulation
- Improves dermal healing and inflammation
- Strengthens weakened skin barrier
- Enhances elasticity and hydration
- Supports gradual scar improvement
- Suitable for sensitive or damaged skin
It is often used when skin quality is fragile or inflamed.
What Is Juvelook?
Juvelook is a hybrid collagen stimulator combining PDLLA (poly-D,L-lactic acid) with hyaluronic acid to stimulate long-term collagen production.
Key features:
- Collagen-stimulating PDLLA microspheres
- Immediate hydration from HA component
- Gradual volumizing effect
- Improves depressed acne scars
- Long-lasting structural improvement
- Strong dermal remodeling action
It is often used for atrophic or deeper acne scars.
How They Improve Acne Scars
Both treatments improve acne scars but through different pathways.
Rejuran:
- Enhances skin regeneration
- Reduces inflammation in damaged tissue
- Improves overall skin quality
- Supports micro-healing of superficial scars
- Gradual texture smoothing
Juvelook:
- Stimulates collagen production over time
- Fills depressed scar areas indirectly
- Improves dermal thickness
- Provides structural skin support
- Long-term remodeling of atrophic scars
Treatment Experience and Recovery
Rejuran:
- Mild injection discomfort
- Small papules for 1–3 days
- Quick recovery
- Subtle gradual improvement
Juvelook:
- Slightly deeper injection technique
- Mild swelling possible
- Gradual volumizing effect
- Longer-term collagen response
Both are minimally invasive with short downtime.
Results Timeline
Improvements are gradual for both treatments.
Rejuran:
- 2–4 weeks: improved skin hydration
- 1–2 months: smoother texture
- 3–6 months: stronger skin barrier and elasticity
Juvelook:
- 3–4 weeks: early collagen activation
- 2–3 months: visible scar improvement
- 3–6+ months: continued dermal remodeling
Multiple sessions are usually required for optimal results.
Which Is Better for Acne Scars?
Neither treatment is universally better—the choice depends on scar type and skin condition.
Rejuran may be better if:
- Skin is sensitive or inflamed
- Scars are superficial
- Skin barrier is weakened
- Focus is overall skin health
Juvelook may be better if:
- Scars are depressed or deep
- Volume loss is present
- Long-term structural improvement is needed
- More visible scar correction is desired
Many clinics combine both for layered improvement.
Final Thoughts
Rejuran and Juvelook both offer effective acne scar improvement but target different aspects of skin recovery. Rejuran focuses on healing and regeneration of damaged skin, while Juvelook provides stronger collagen stimulation and structural correction. The best option depends on whether the primary goal is skin quality restoration or deeper scar remodeling.
