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When facing complex facial pigmentation and microvascular issues, single-wavelength picosecond lasers often encounter treatment bottlenecks. Geown Dermatology has introduced a multi-wavelength synergistic and layered skin care approach, whose excellent clinical performance is backed by solid international literature:

1. Melasma Dual-Track Evidence: 1064nm combined with 595nm dual wavelength is superior to traditional topical drugs

Melasma is recognized by the medical community as an extremely difficult pigment problem to cure, often accompanied by active melanin and localized microvascular proliferation. A multi-center randomized clinical trial published in a top international dermatology journal, "Efficacy and safety of a novel picosecond laser using combination of 1064 and 595 nm on patients with melasma: A prospective, randomized, multicenter, split-face, 2% hydroquinone cream-controlled clinical trial", has brought groundbreaking evidence.

Core findings of the literature: This high-standard randomized, multi-center, split-face controlled clinical study confirmed that a novel picosecond laser using a combination of 1064nm and 595nm dual wavelengths for the treatment of melasma has significantly better clinical efficacy and safety than the 2% hydroquinone cream (topical hydroquinone cream) traditionally used in the medical community. The dual-wavelength synergy can simultaneously shatter melanin and constrict abnormally proliferating microvessels, greatly reducing the probability of inflammation, providing melasma patients with a safer non-drug option with a lower recurrence rate.

2. Red Acne Scar Buster: 595nm picosecond laser precisely targets post-inflammatory erythema

Many people are left with dense "red acne scars (post-inflammatory erythema)" on their faces after acne (pimples) subside, which are traces of microvascular dilation and inflammation. Authoritative medical research "Post-acne Erythema Successfully Treated with 595-nm Picosecond-domain Neodymium:Yttrium-aluminum-garnet Laser" confirms the excellent expansion of picosecond lasers in vascular lesions.

Core findings of the literature: Clinical studies indicate that 595nm wavelength picosecond-domain lasers can very successfully treat post-acne erythema. 595nm is the golden absorption wavelength for hemoglobin in microvessels. Through ultra-short picosecond-level pulse width release, it can produce a photoacoustic effect in a very short time to constrict blood vessels and reduce erythema, while minimizing thermal damage and avoiding purpura or prolonged recovery periods that are easily caused by traditional lasers.

3. Asian Skin Rejuvenation Safety Mechanism: 1064nm fractional picosecond for melasma and skin rejuvenation in Asians

The biggest concern for Asian skin (Type III - IV skin types) when undergoing laser treatment is post-inflammatory hyperpigmentation and thermal damage. In this regard, a prospective study literature conducted on Asians, "Fractional 1064 nm Picosecond Laser in Treatment of Melasma and Skin Rejuvenation in Asians, A Prospective Study," provides clear guidance.

Core findings of the literature: The study confirmed that using 1064nm fractional picosecond laser for the treatment of melasma and skin rejuvenation in Asians has a very high safety profile and clinical efficacy. The "optical breakdown effect (LIOB)" produced by fractional lenses (such as honeycomb lenses) can penetrate deep into the dermis to initiate collagen remodeling without damaging the epidermal barrier, while demonstrating excellent anti-hyperpigmentation safety in lightening melasma, refining pores, and smoothing fine lines.

4. Efficient Removal of Superficial Spots: Clinical advantages of 532nm picosecond laser for sunspots and freckles in Asians

In addition to deep melasma, common superficial pigment problems in Asians (such as sunspots, freckles, and other small spots like lentigines) also require efficient treatment. The prospective study literature "A Prospective Study in the Treatment of Lentigines in Asian Skin Using 532 nm Picosecond Nd:YAG Laser" provides a perfect solution for this.

Core findings of the literature: The 532nm wavelength has a very high absorption coefficient for melanin, making it a powerful tool for removing superficial spots. This prospective study confirmed that using 532nm picosecond Nd:YAG laser to treat freckles and sunspots (lentigines) in Asian skin can achieve a very high pigment clearance rate with extremely short pulse widths and lower thermal energy. Due to its ultra-short photoacoustic characteristics at the picosecond level, it significantly reduces the risk of post-inflammatory hyperpigmentation (PIH) and hypopigmentation that Asians were prone to when receiving traditional 532nm nanosecond lasers in the past.

Combining the empirical evidence and guidelines from the four international studies above, the Geown Dermatology team has abandoned the traditional approach of blindly pursuing high energy levels and adopted a precise, layered smart picosecond strategy:

• 532nm Gold Wavelength (superficial polishing): For freckles and sun spots (Lentigines) with clear borders, it utilizes an extremely high melanin absorption rate to precisely shatter epidermal pigment with photoacoustic waves. As documented in literature, it offers Asians a spot removal experience with both high clearance rates and low post-inflammatory hyperpigmentation risk.
• 595nm Amber Wavelength (redness reduction and pigmentation removal): Specializing in hemoglobin absorption, as evidenced by erythema literature, it precisely constricts abnormally dilated microvessels in red acne scars, while simultaneously cutting off the vascular supply base beneath melasma, fundamentally blocking inflammation and post-inflammatory hyperpigmentation signals.
• 1064nm Fractional Lens (deep skin rejuvenation and repair): Penetrates deep into the dermis to induce LIOB (Laser-Induced Optical Breakdown), stimulating endogenous collagen production, achieving internationally recognized "epidermis-sparing skin rejuvenation," while safely and stably treating stubborn melasma in Asians.

1. Efficacy and safety of a novel picosecond laser using combination of 1 064 and 595 nm on patients with melasma: A prospective, randomized, multicenter, split-face, 2% hydroquinone cream-controlled clinical trial. (Clinical Trial Report / Melasma Research).
2. Post-acne Erythema Successfully Treated with 595-nm Picosecond-domain Neodymium:Yttrium-aluminum-garnet Laser. (Dermatological Surgery Study).
3. Fractional 1064 nm Picosecond Laser in Treatment of Melasma and Skin Rejuvenation in Asians, A Prospective Study. (Asian Dermatological Laser and Rejuvenation Study).
4. A Prospective Study in the Treatment of Lentigines in Asian Skin Using 532 nm Picosecond Nd:YAG Laser. (Lentigines Treatment Research).