Proprietary Protocol · Low-Level Laser · Hair Restoration

H2LT Laser —
Regrowth, Restored

H2LT (Hair Hyperstimulation Laser Therapy) is one of Dr. Sin Yong's ten pioneered protocols — a calibrated low-level laser therapy designed for follicle stimulation in Singapore's multi-ethnic patient population. Non-invasive, non-pharmacological, zero downtime.

The Mechanism

Stimulating the Dermal Papilla

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Every hair follicle is driven by the dermal papilla — a stem-cell-rich structure at its base that governs the growth cycle. H2LT delivers calibrated laser energy at wavelengths and pulse parameters selected to reach that depth specifically, rather than depositing energy in the overlying scalp.

The stimulus drives follicles from telogen — the resting phase, where a hair sits dormant before shedding — back into anagen, the active growth phase. Because the hair cycle is measured in months rather than weeks, improvement is progressive and cumulative across a course of sessions.

Dr. Sin Yong developed H2LT as a protocol rather than a device setting. Wavelength selection, pulse duration and session interval are calibrated to the patient's scalp type, stage of loss and response — which is why it is delivered under physician direction rather than as a standing appointment.

No laser compensates for uncontrolled DHT-driven miniaturisation. This builds on medical control rather than replacing it.

Dr. Sin Yong · Medical Director, Atelier Aesthetics

Specifications

Modality
Low-level laser therapy at the dermal papilla
Mechanism
Drives follicles from telogen back into anagen
Course
Delivered as a series; density assessed at intervals
Foundation
Built on medical control of the hormonal driver

Where It Fits

One Layer of a Complete Programme

Foundation
Medical Control First
No laser compensates for uncontrolled DHT-driven miniaturisation. Prescription treatment addressing the hormonal driver is established before energy-based work begins.
Stimulation
H2LT Laser
Low-level laser energy driving dormant follicles back into the growth phase — non-invasive, non-pharmacological, suitable for patients who cannot or prefer not to take systemic medication.
Regeneration
Growth Factors & Micrografting
Exosome scalp injections and Regenera Activa autologous micrografting add regenerative signalling on top of the medical and energy foundation.

FAQ

H2LT — Common Questions

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H2LT (Hair Hyperstimulation Laser Therapy) is Dr. Sin Yong's proprietary low-level laser protocol for hair loss. Calibrated laser energy at specific wavelengths and pulse parameters stimulates the dermal papilla — the stem-cell-rich structure at the base of each follicle that drives the growth cycle.
Energy delivered at the follicle base drives follicles from the telogen (resting) phase back into anagen (growth). The effect is progressive: density improves across a series of sessions rather than after any single treatment.
Neither. It is completely non-invasive and non-pharmacological, with zero downtime. This makes it suitable for patients who cannot take finasteride, are planning pregnancy, or prefer to avoid systemic medication.
No. Dr. Sin Yong's position is that the medical foundation comes first — no laser compensates for uncontrolled DHT-driven miniaturisation. H2LT builds on that foundation rather than replacing it.
H2LT is delivered as a course. The number of sessions depends on the stage of loss established at trichoscopy. Density improvement is assessed at intervals rather than session by session.
H2Lt at Atelier Aesthetics — CityLink Mall, Singapore
H2Lt · Atelier Aesthetics, CityLink Mall

Atelier Aesthetics

Density, rebuilt —
without medication.

1 Raffles Link, #B1-28, CityLink Mall, Singapore 039393 · +65 8023 7170

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