1927nm Thulium Laser: A Gentle and Versatile Beauty and Medical Device

I. Core Advantages

1. Non-ablative Safety Guarantee

• Completely no damage to the epidermis, only slight redness after treatment, recovery in 1-3 days, virtually no downtime.

• No scabbing or peeling, especially suitable for sensitive skin and those who fear the recovery period.

• Higher safety factor and lower risk than ablative lasers (CO₂/Erbium lasers), simple post-treatment care.

2. Water Absorption "Golden Wavelength"

• 1927nm precisely located at the strongest absorption peak of water molecules, energy is efficiently absorbed by the superficial layers of the skin.

• Minimal thermal damage area (only 0.2-0.4mm), almost no damage to surrounding tissues, precisely targeting the target area.

• It has a 7-10 times higher water absorption rate than other non-ablative lasers (such as 1550nm), and its thermal effect is more significant.

3. All-in-one efficacy

• Collagen regeneration and epidermal micro-renewal work together to improve skin texture and tone simultaneously.

• Long-lasting effects: A single treatment can last for 6-12 months, and a course of treatment (3-5 sessions) can last for 1-2 years.

• Suitable for all skin types, especially friendly to Asian skin and dark skin, and less likely to cause pigmentation.

II. Core Mechanism of Action: 

Water Absorption → Controllable Thermal Effect → Bioreaction Chain → Skin Reconstruction

1. Photoenergy Conversion to Thermal Energy: Laser energy is absorbed by water molecules in the skin, generating precise and controllable thermal stimulation.

2. Collagen Regeneration Initiation: Thermal energy triggers the denaturation and remodeling of collagen fibers in the dermis, stimulating fibroblasts to produce new collagen.

3. Epidermal Micro-Renewal: Gently promotes keratinocyte metabolism, improves dull skin tone, and preserves the integrity of the epidermal barrier.

4. Inflammation Regulation: Selective thermal action inhibits sebum secretion, kills Propionibacterium acnes, and improves inflammatory skin problems.

III. Main Application Scenarios

1. Medical Aesthetics

2. Featured Applications:

• Skin Barrier Repair: Strengthens the stratum corneum, thickens the dermis, and enhances skin's resistance; suitable for sensitive skin.

• Drug Delivery: Laser-created microchannels enhance the absorption efficiency of skincare products (especially suitable for large-molecule serums).

• Hair Loss Improvement: Stimulates hair follicles and promotes hair growth; suitable for mild to moderate hair loss.

IV. Key Differences from Ablation Fractional Laser CO2

Who are the suitable and unsuitable candidates for 1927nm thulium laser? 

1927nm thulium laser is suitable for people who "need gentle improvement of skin problems and value the safety of their skin barrier".

Suitable for:

1. Skin Types

• Sensitive Skin/Damaged Barrier Skin: Non-ablative formula does not damage the epidermis, repairing the skin barrier and improving skin texture while avoiding aggravating sensitivity.

• Dry/Normal Skin: Gentle anti-aging and hydrating, improving fine lines and enlarged pores without exacerbating dehydration.

• Oily/Combination Skin: Controls oil, unclogs pores, reduces acne recurrence, and does not cause inflammation or breakouts.

• Dark Skin (Fitzpatrick IV-V type): Energy does not affect epidermal pigmentation, less likely to induce post-inflammatory hyperpigmentation, safer than ablative lasers.

2. Skin Problems

• Anti-aging Needs: Fine lines around the eyes, nasolabial folds, mild facial sagging, seeking gentle stimulation of collagen regeneration.

• Skin Texture Improvement Needs: Enlarged pores, dull complexion, roughness, requiring gentle exfoliation to improve skin smoothness.

• Mild Imperfection Repair Needs: Mild acne scars, acne marks (post-inflammatory hyperpigmentation), unwilling to undergo invasive treatments.

• Special needs: Those who are afraid of pain and the recovery period (redness for only 1-3 days), and who hope that the treatment will not affect their daily work and life.

Contraindications

1. Skin Condition Contraindications

• Individuals in the acute inflammatory phase: Those experiencing breakouts, allergic redness and swelling, sunburn with peeling, or eczema/dermatitis flare-ups will experience worsened inflammation after treatment.

• Individuals with skin infections or wounds: Those with open wounds on the face, herpes infections, or purulent skin problems are prone to infection spread.

• Individuals recently exposed to strong sunlight: Those with a history of intense sun exposure within one month prior to treatment have active melanin production, potentially increasing the risk of hyperpigmentation.

2. Contraindications Based on Constitution and Health

• Individuals with a tendency to form keloids: Although not a minimally invasive procedure, heat stimulation may induce excessive collagen production, leading to new scarring.

• Individuals with allergies/laser allergies: Allergic reactions to laser treatment or coupling agents may occur, including skin redness, swelling, and itching.

• Individuals with underlying health conditions: Conditions such as coagulation disorders, weakened immune function (e.g., autoimmune diseases), and diabetes (poor wound healing) require careful evaluation.

• Individuals taking certain medications: Long-term use of photosensitizing drugs (e.g., tetracyclines, retinoids) or anticoagulants may worsen skin reactions or increase the risk of bleeding.

What are the treatment effects of 1927nm thulium laser?

The core of the treatment effect of 1927nm thulium laser is "gentle yet comprehensive." Without ablative treatment, it can achieve multi-dimensional improvements in anti-aging, skin texture, and mild repair, with quantifiable and lasting effects.

1927nm thulium laser is a "gentle yet effective" treatment. After a course of treatments (3-5 sessions), the improvement rate for different skin problems is 40%-70%. Skin brightening can be seen after a single treatment, and the effect after full recovery is natural and not exaggerated, lasting 6 months to 2 years.

Recovery Period Details

• Immediate Reactions (1-3 hours after treatment): Slight redness and warmth on the face; some individuals may experience slight swelling, all normal thermal stimulation reactions.

• Peak Recovery (1-2 days after treatment): Redness gradually subsides, swelling completely subsides, skin may feel slightly dry, but there are no other discomforts.

• Complete Recovery (within 3 days after treatment): Skin condition returns to normal; makeup and skincare can be resumed normally without any recovery period concerns.

• Comparison Reference: Ablative laser recovery period is 7-14 days (scab formation and peeling); the 1927nm thulium laser is one of the types of non-ablative lasers with the shortest recovery period currently available.

Skin Damage (Minimal and Reversible)

1. Mild Reactions After Normal Treatment (Non-damaging, Quick Recovery)

• Temporary Redness and Warmth: Subsides within 1-2 days; a normal reaction to laser thermal stimulation.

• Slight Dryness: Because the laser promotes keratin metabolism, timely moisturizing after the procedure is necessary; this should subside within 3 days.

2. No Long-Term Irreversible Damage

• Does not damage dermal collagen fibers or epidermal cells, and will not cause problems such as thinning of the skin or worsening of sensitive skin.

• Compared to ablative lasers: No long-term risks such as scarring or pigmentation, making it safer.