The 4D Scar Reconstruction protocol is Dr. Sin Yong's proprietary multi-dimensional approach to acne scar treatment — developed specifically to address the four components that single-treatment protocols consistently fail to treat together: Depth (the physical depression), Definition (the scar edge structure), Discolouration (post-inflammatory pigmentation), and Dermis quality (the underlying skin health).
Why Standard Approaches Fall Short
Most acne scar protocols focus on a single dimension — typically resurfacing the skin surface with fractional laser, or injecting fillers to raise depressed scars. Fractional CO₂ laser improves surface texture but does not release fibrous tethering beneath rolling scars. Subcision releases tethering but does not resurface surface texture. TCA Cross corrects ice-pick depth but does not improve surrounding skin quality. Each addresses one dimension of a multi-dimensional problem.
The 4D Protocol in Practice
Dr. Sin Yong sequences multiple complementary modalities within a single treatment session, selected based on each patient's specific scar pattern. Subcision (if rolling scars are present) — first, to release fibrous tethering. TCA Cross (if ice-pick scars are present) — targeted chemical reconstruction within the scar tunnel. Tetra Pro Scar³ laser resurfacing — multi-wavelength surface treatment addressing texture, depth reduction and collagen stimulation. LCLR® collagen stimulation — deeper collagen rebuilding around and beneath scar tissue. The precise combination is selected at consultation based on individual scar classification and skin type.
Results and Timeline
The 4D approach consistently achieves 50–70% improvement across all scar dimensions in most patients — a result that single-modality approaches to the same scars rarely achieve. Results develop progressively over 3–6 months after each treatment session as collagen matures.
Book a Private Consultation
Discuss your concerns personally with Dr. Sin Yong. Consultation fee $120 — waived with any treatment on the same visit.
WhatsApp Dr. Sin Yong Or call: +65 8023 7170 · 1 Raffles Link #B1-28, CityLink MallFrequently Asked Questions
Fractional laser addresses only the skin surface dimension of scarring. The 4D Scar Reconstruction addresses depth, definition, discolouration and dermis quality simultaneously — typically producing significantly better overall improvement.
Topical anaesthetic cream is applied before all treatment components. Subcision and TCA Cross involve brief, tolerable sensations at treatment points. Most patients rate the overall session as tolerable with appropriate anaesthesia.
Most patients benefit from 3–6 sessions spaced 4–8 weeks apart, depending on scar severity.
Yes — expect 3–7 days of redness, mild swelling and skin peeling following a full 4D session. Sun protection is critical during recovery.
Yes — the 4D protocol can be adapted for acne scars on the back, chest and shoulders. Dr. Sin Yong will assess the scar pattern and recommend an appropriate approach at consultation.
Dr. Sin Yong — Aesthetic Surgeon & Medical Director
MBBS (NUS) · MRCS (Edinburgh) · MSc Aesthetic Medicine (London) · MSc Practical Dermatology (UK) · International KOL — Hironic, Classys, Ilooda · 500+ physicians trained internationally · Singapore SME 100 Award 2025/2026