Rejuran Skin Booster and Anti-Wrinkle Injections: Addressing Skin Quality Alongside Wrinkle Management
Quick summary: Anti-wrinkle injections using botulinum toxin and Rejuran Skin Booster (DEP) address two fundamentally different types of facial lines — one targeting wrinkles that form from repeated muscle movement, the other working at the skin’s surface to support skin quality, hydration, and radiance.
Because both types of lines frequently appear on the same face at the same time, a doctor may consider a care plan that addresses each appropriately. Botulinum toxin is a prescription-only medicine in Singapore and may only be prescribed and administered by a registered medical practitioner following a clinical assessment.
Anti-Wrinkle Injections vs Rejuran Skin Booster (DEP): A Quick Comparison
| Anti-Wrinkle Injections (Botulinum Toxin) | Rejuran Skin Booster (DEP) | |
|---|---|---|
| Downtime | Minimal to none | Minimal to none |
| Who it suits best | Those with dynamic lines from muscle movement (forehead lines, frown lines, crow’s feet) | Those with skin-quality lines from surface texture and hydration loss |
| Pain level | Mild, brief discomfort at injection points | Minimal, non-injection delivery |
| Results-onset speed | May develop over 1–2 weeks | Gradual, builds across a treatment series |
| Longevity | Effects typically last around 3–6 months, with maintenance considered | Effects may be supported with periodic follow-up sessions |
| Cost per month of result | Varies by area treated and frequency of maintenance; a personalised quote is provided at consultation | Varies by number of sessions; a personalised quote is provided at consultation |
Disclaimer: this table is a general guide only, not a guarantee. Outcomes vary by individual, and which treatment is appropriate depends entirely on an individual assessment by a doctor.
Not All Wrinkles Are the Same and That Distinction Matters
When most people talk about wanting to address their wrinkles, they’re usually describing what they see — lines on the face that weren’t there before. But what’s less often understood is that these lines can have different origins entirely, and the treatment that addresses one type may have no effect on the other.
Understanding this distinction is useful not just for managing expectations, but for having a more productive conversation with your doctor about what is actually happening on your face and what approaches are relevant to your specific concerns.
Dynamic Wrinkles: Lines Formed by Muscle Movement
Some facial lines form primarily because of repeated muscle contractions over time. When you frown, squint, or raise your eyebrows, specific muscles in the face contract — and over years of use, the skin above those muscles begins to fold in predictable patterns. These are called dynamic wrinkles.
Common examples include the horizontal lines across the forehead, the vertical lines between the brows that appear when frowning, and the fine lines at the outer corners of the eyes associated with squinting or smiling. In early stages, these lines are most visible when the face is in motion. Over time, they can become more visible even when the face is at rest.
How Anti-Wrinkle Injections Work
Anti-wrinkle injections use botulinum toxin — a prescription medicine — to temporarily relax the specific facial muscles responsible for creating dynamic wrinkles. By reducing the frequency and intensity of those muscle contractions, the overlying skin is given the opportunity to smooth, and the repeated folding that creates the lines may be reduced.
The effects are localised to the muscles treated and are temporary in nature. They develop gradually over the weeks following the procedure, and their duration varies depending on the individual, the areas treated, and other factors assessed by the doctor. Maintenance treatments are typically needed to sustain the effect over time.
Because botulinum toxin is a prescription-only medicine in Singapore, a clinical assessment is required before treatment, so a doctor can evaluate suitability and identify any contraindications for that individual.
Anti-wrinkle injections do not address the underlying skin quality, hydration, or radiance. They target the muscle activity responsible for dynamic lines — not the skin’s surface layer.
What Rejuran Skin Booster Addresses
While anti-wrinkle injections work at the muscular level, Rejuran Skin Booster (DEP) is designed to work at an entirely different layer — the skin’s surface, where hydration and radiance are supported.
Rejuran Skin Booster (DEP) (a salmon-DNA-derived skin booster) is a Korean-developed cosmetic treatment built around PDRN (Polydeoxyribonucleotide) and amino acids, delivered topically through dermo-electroporation (DEP) — a non-injection method that uses gentle electrical pulses to help the formula penetrate the skin’s surface layers. PDRN is understood to support the skin’s own surface renewal processes and may help with hydration and radiance. The amino acids may help support hydration and moisture retention.
Rejuran Skin Booster (DEP) is typically considered for:
- Fine surface lines and texture irregularities
- Skin that has become dehydrated, dull, or lacking in resilience
- Skin quality that has declined due to ageing, sun exposure, or cumulative environmental stress
- Areas where the skin needs extra surface support
Rejuran Skin Booster (DEP) is designed to work on skin quality — not on muscle activity. It addresses the kind of lines and surface changes that come from within the skin itself, not from facial movement. It does not relax muscles and would not be the appropriate approach for dynamic wrinkles caused by muscular contraction.
Why Both Types of Lines Often Appear Together
The distinction between dynamic and skin-quality-related lines matters in practice because most faces display both — particularly from the mid-30s onward.
A person may have visible frown lines driven by years of muscle use, and fine surface lines and dehydrated skin from declining surface quality. One is a muscular concern. The other is a skin quality concern. They are present at the same time on the same face, but they require different approaches.
When a doctor assesses a patient and identifies both dynamic wrinkles appropriate for anti-wrinkle treatment and skin quality concerns that may respond to a skin booster, they may consider whether a care plan addressing both dimensions is appropriate for that individual.
This assessment requires a trained eye and an in-person examination. The type of lines present, their severity, the patient’s skin condition, and their overall suitability for each treatment all need to be evaluated properly before any recommendation is made.
What a Care Plan Including Both May Involve
Anti-wrinkle injections and Rejuran Skin Booster (DEP) are designed to work through different mechanisms and at different tissue levels. This means they are not in conflict as part of a care plan — but the specific approach, sequencing, and interval between treatments depend entirely on the individual’s clinical assessment.
Anti-wrinkle treatments are typically repeated at intervals determined by the doctor based on how each patient responds. Rejuran Skin Booster (DEP) sessions are generally spaced a few weeks apart, with intended effects that may build progressively over the course of the treatment series.
The doctor will advise on aftercare following both procedures and on what the appropriate timeline looks like for the individual. Realistic expectations for gradual, natural-looking improvement — rather than immediate visible change — are part of any responsible consultation.
Combined Plan: Anti-Wrinkle Injections + Rejuran Skin Booster (DEP)
| Anti-Wrinkle Injections + Rejuran Skin Booster (DEP) | |
|---|---|
| Downtime | Minimal to none for both |
| Who it suits best | Those with concurrent dynamic expression lines and surface-level skin quality concerns (dehydration, dullness, texture irregularities) |
| Pain level | Mild, brief discomfort at injection points for anti-wrinkle injections; minimal for the skin booster |
| Results-onset speed | Anti-wrinkle effects may develop over 1–2 weeks; skin booster changes build across a treatment series |
| Longevity | Anti-wrinkle effects typically last around 3–6 months, with maintenance considered; skin booster effects may be supported with periodic follow-up |
| Cost per month of result | Varies by area treated, session frequency, and maintenance schedule for each treatment; a personalised quote is provided at consultation |
Disclaimer: this table is a general guide only, not a guarantee. Outcomes vary by individual, and which treatments are appropriate depends entirely on an individual assessment by a doctor.
How These Two Treatments Are Considered Together at ClearSK
When a clinical assessment identifies both dynamic expression lines and underlying skin quality decline, a doctor at ClearSK may structure a care plan that addresses each dimension through the appropriate approach. Two pathways that commonly arise in this context are:
- Salmon-DNA-derived skin booster (DEP) + botulinum toxin anti-wrinkle protocol: for patients presenting with both surface-level skin quality concerns (dehydration, dullness, surface texture irregularities) and dynamic expression lines (forehead lines, frown lines, crow’s feet) driven by repeated muscular contraction. The topical skin booster addresses skin surface quality; the prescription anti-wrinkle treatment addresses the muscle activity responsible for dynamic lines.
- Surface-level skin renewal + prescription muscle-relaxant injection: for patients managing two clinically distinct types of facial lines simultaneously: skin-quality surface lines addressed through topical PDRN support, and movement-driven dynamic lines addressed at the muscular level through a prescription anti-wrinkle injection, administered by a registered doctor.
As noted throughout this article, the botulinum toxin component is a prescription-only medicine in Singapore. Suitability for both components is assessed individually during the clinical consultation, and neither approach is a default recommendation.
Frequently Asked Questions
The First Step Is a Proper Assessment
If you are noticing lines on your face and are unsure whether they are linked to muscle movement, skin quality decline, or both, the right starting point is a face-to-face consultation with a doctor who can examine your skin properly and give you an accurate picture of what is present.
At ClearSK, our registered doctors assess each patient’s concerns individually and explain what they are observing and why — so you can make informed decisions about your care.
Why Patients Choose ClearSK
- 17+ years trusted in Singapore
- Thousands of treatments performed across our network of Singapore clinics
- 100+ treatment selections across skin, face, body and hair growth
- Doctor-designed protocols — treatment plans are developed and overseen by a registered medical practitioner
- Multiple clinic locations across Singapore, with consistent clinical standards at each
Which Is Relevant for You?
- Mainly noticing lines that show up when you frown, squint, or raise your brows? Anti-wrinkle injections may be the more relevant starting point.
- Mainly noticing dullness, dehydration, or fine lines that are there even at rest? Rejuran Skin Booster (DEP) may be more relevant for that.
- Noticing both? A consultation can help determine whether a plan addressing both makes sense for you.
References
- Polydeoxyribonucleotide: A promising skin anti-aging agent. Chinese Journal of Plastic and Reconstructive Surgery, 2022.
- Botulinum toxin type A for facial wrinkles. Cochrane Database of Systematic Reviews, PMC.
- Botulinum toxin injection for facial wrinkles. PubMed.
