H2LT (Hair Hyperstimulation Laser Therapy) is Dr. Sin Yong's proprietary laser protocol for hair follicle stimulation — the non-invasive foundation of hair restoration at Atelier Aesthetics. It represents a significant advance over conventional low-level laser therapy (LLLT) for hair loss, using a higher-energy, more precisely targeted approach that produces stronger follicle stimulation and more consistent results.
How H2LT Differs from Standard Hair Laser Treatments
Low-level laser therapy (LLLT) devices — including popular home-use caps and combs — deliver modest photobiomodulation to the scalp. Evidence shows modest improvements in hair density in selected patients, but energy levels are insufficient to produce meaningful hyperstimulation. H2LT delivers higher-energy, more precisely targeted laser energy to the scalp — producing a stronger stimulus to follicular cells and scalp microvasculature. The 'hyperstimulation' refers to this deliberate above-threshold stimulation of follicle activity.
Who Benefits from H2LT
H2LT is most effective for patients with androgenetic alopecia where follicles are miniaturised but still present. In areas of complete follicle loss, H2LT cannot regenerate follicles — transplantation is required. H2LT is also highly effective as a maintenance protocol following hair transplantation — protecting existing non-transplanted follicles from further miniaturisation and improving graft survival.
What to Expect
H2LT sessions are non-invasive, require no topical anaesthetic, and have no downtime. Most patients notice reduced shedding within the first few sessions. Visible density improvement becomes apparent over 3–6 months of treatment, with continued improvement with ongoing sessions.
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
No. H2LT uses significantly higher energy and more precisely calibrated parameters than consumer LLLT devices. The clinical results are correspondingly stronger and more consistent.
Most patients notice reduced shedding within 4–6 sessions. Visible density improvement typically becomes apparent after 3–6 months.
Yes — H2LT and growth factor (PRP) treatment are complementary and frequently combined at Atelier Aesthetics. The combination typically produces better results than either alone.
H2LT is non-invasive and pain-free. No needles or topical anaesthetic are required.
Yes. H2LT is appropriate for female androgenetic alopecia and diffuse hair thinning. Female pattern hair loss requires specific assessment — Dr. Sin Yong will evaluate your hair loss pattern 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