Astralis Nd Yag Picosecond Laser System

Astralis Nd:YAG Picosecond Laser System — Ultra-Short Pulse Pigment Elimination & Skin Rejuvenation

The Astralis uses picosecond Nd:YAG laser technology — delivering pulses measured in trillionths of a second (10⁻¹² s) — to shatter pigment particles through a photoacoustic mechanism rather than the photothermal approach of older Q-switched nanosecond systems. The ultra-short pulse duration generates an intense pressure wave at the point of pigment absorption that mechanically fragments melanin granules and tattoo ink particles into sub-micron fragments, enabling faster clearance with significantly less heat deposition in surrounding tissue.

Picosecond vs. Nanosecond — Why Pulse Duration Matters

Nanosecond Q-switched lasers (10⁻⁹ s) destroy pigment primarily through photothermal action — the absorbed energy converts to heat, which denatures and fragments the pigment particle. This thermal energy diffuses into surrounding tissue during the pulse duration, creating localized thermal damage that limits fluence levels and produces post-inflammatory hyperpigmentation risk on darker skin tones.

Picosecond lasers (10⁻¹² s) deliver the same or greater energy in 1,000 times shorter pulse durations, concentrating the energy delivery within the thermal relaxation time of the target chromophore. The result is a dominant photoacoustic (pressure-wave) effect rather than a thermal one: the pigment particle shatters mechanically without significant heat transfer to surrounding dermis. Smaller fragment size accelerates lymphatic clearance, fewer treatment sessions are required for complete pigment elimination, and post-treatment hyperpigmentation risk is substantially reduced across all skin types.

Dual Wavelength — Full-Spectrum Pigment Coverage

• 1064nm Nd:YAG: Deep dermal penetration (3–5mm) — targets black, blue, and dark green tattoo inks; deep dermal melanin; Nevus of Ota; and infradermal melasma. Effective and safe on darker skin tones (Fitzpatrick IV–VI) due to lower epidermal melanin absorption at this wavelength.
• 532nm (frequency-doubled): Superficial penetration — targets red, orange, and brown tattoo inks; superficial epidermal pigmentation; solar lentigines; epidermal melasma; and post-inflammatory hyperpigmentation in lighter skin phototypes.

Treatment Applications

• Multi-color tattoo removal: Dual wavelength covers the widest range of ink colors across all placement depths; particularly effective for previously treated resistant tattoos
• Hyperpigmentation and melasma: Selective picosecond fragmentation of melanin clusters with minimal risk of post-inflammatory rebound
• Solar lentigines and age spots: Rapid clearance of superficial and dermal pigmented lesions
• Nevus of Ota and Ito: Deep dermal pigmentation responsive to 1064nm depth and picosecond mechanism
• Skin rejuvenation (LIOB): Laser-induced optical breakdown creates micro-vacuoles in the dermis that stimulate collagen remodeling, improving skin texture, pore size, and acne scars
• Carbon laser facial: 1064nm Q-switched mode with carbon peel protocol for pore minimization, oil control, and skin brightening

Clinical Advantages Over Nanosecond Systems

• Fewer treatment sessions to complete clearance (typically 30–50% fewer than nanosecond equivalents)
• Shorter intervals between sessions due to faster immune clearance of smaller fragments
• Reduced post-treatment purpura and thermal side effects
• Safe treatment of Fitzpatrick types I–VI with appropriate parameter selection
• Effective on previously treated residual tattoo pigment that is resistant to nanosecond lasers

Technical Specifications

Package Includes

• Main unit × 1
• 1064nm laser handpiece × 1
• 532nm handpiece × 1
• Protective eyewear × 2 pairs
• Power cord × 1
• User manual × 1