308nm is a specific wavelength within the mid-wave ultraviolet (UVB) spectrum , primarily generated by excimer light sources (e.g., xenon chloride excimer lamps/diodes). It is classified as a "targeted phototherapy wavelength" due to its unique physical and biological properties, widely recognized for medical applications, especially in dermatology. The 308nm UVB light therapy device emits ultraviolet B (UVB) light at a specific wavelength of 308nm. This narrowband UVB light targets the skin's epidermis, promoting therapeutic effects by reducing inflammation, slowing the growth of skin cells, and modulating the immune response. The device stimulates the production of vitamin D and enhances the skin's natural healing processes, making it effective for various skin conditions.
Targeted Wavelength: Narrowband Precision for Safe Efficacy
As a mid range UVB wavelength, 308nm is classified as narrowband UVB (NB UVB) unlike broadband UVB's scattered wavelengths. Its monochromatic purity concentrates therapeutic energy on a single active wavelength, minimizing exposure to harmful UV (e.g., burn causing shortwave UVB) while maximizing interaction with pathological skin tissues, ensuring high safety and efficacy.
Interaction with Skin Cells: Multi Dimensional Biological Regulation
308nm UVB light penetrates the epidermis to the basal layer, where it is selectively absorbed by key skin cells, primarily keratinocytes and melanocytes, triggering three synergistic therapeutic effects: DNA repair & cell cycle regulation, immunomodulation, melanocyte activation.
Effect on Skin Conditions: Targeted Relief for Multiple Dermatoses
Backed by extensive clinical data, 308nm UVB therapy is FDA-approved and widely used for treating various immune-mediated and inflammatory skin conditions: Psoriasis, Vitiligo, Atopic Dermatitis (Eczema), Alopecia Areata, Neurodermatitis & Seborrheic Dermatitis
Localized Treatment: Precision Protection for Healthy Skin
A standout advantage of 308nm UVB is its highly localized delivery, enabled by advanced optical design (e.g., focused technology) and optional shading accessories. Unlike whole-body phototherapy devices, it targets only affected skin areas (e.g., a 1cm² vitiligo patch or elbow psoriasis plaque), avoiding exposure to surrounding healthy tissue. This precision drastically reduces the risk of side effects (e.g., burns, skin aging) and makes it safe for treating sensitive areas (e.g., face, genitals) and small, scattered lesions.
- 308nm light penetrates the skin's basal layer to trigger photochemical reactions, directly inhibiting the production and release of pro inflammatory cytokines from keratinocytes and immune cells. It also upregulates anti inflammatory factors and suppresses the activation of NF KB signaling pathways key regulators of inflammatory responses.
- Reduces redness, swelling, itching, and tenderness in inflamed skin lesions, relieving acute symptoms of conditions like atopic dermatitis and psoriasis
- For diseases characterized by excessive keratinocyte proliferation (e.g., psoriasis), 308nm light targets hyperactive keratinocytes in the basal and suprabasal layers. It disrupts DNA synthesis in rapidly dividing cells, arrests the cell cycle at the G1/S phase, and induces apoptosis (programmed cell death) of abnormally proliferating cells, without damaging normal, slowly dividing skin cells.
- Reduces the thickness of scaly plaques, normalizes the turnover rate of the epidermis, and restores the skin's barrier function.
- 308nm wavelength modulates the function of immune cells involved in skin pathology:
Inhibits the activation and migration of pathogenic T cells (e.g., Th1, Th17 cells) that attack healthy skin cells (e.g., melanocytes in vitiligo) or promote inflammation.
Suppresses the antigen presenting function of dendritic cells, reducing the stimulation of abnormal immune responses.
Enhances the activity of regulatory T cells (Tregs), which suppress excessive immune reactions and promote immune tolerance. - Reverses immune-mediated damage to skin cells (e.g., repigmentation in vitiligo by protecting melanocytes) and prevents recurrent inflammation, achieving long-term disease control.
Improves local skin microcirculation, inhibits collagen overproduction, and alleviates skin induration and tightness in limited lesions.
Inhibits Malassezia proliferation and inflammatory responses, reduces erythema, scaling, and oiliness, effective for scalp, facial, and chest lesions.
As a mid-wave UVB wavelength, it stimulates cutaneous synthesis of vitamin D3, suitable for individuals with insufficient sunlight exposure or clinical vitamin D deficiency.
Reduces skin inflammation by inhibiting inflammatory factor release, relieves itching, redness, and dryness, and repairs the skin barrier, ideal for localized acute or chronic eczematous lesions (e.g., flexural areas, limbs).
Targets melanocytes in the basal layer, promotes melanocyte proliferation, migration, and melanin synthesis, and inhibits immune cell attack on melanocytes, especially effective for localized patches (e.g., joints, face, limbs) and stubborn lesions.
Suppresses abnormal proliferation of keratinocytes, inhibits pro-inflammatory cytokines , and regulates T-cell immunity, alleviating scaly plaques, redness, and thickness in localized or generalized psoriasis (e.g., scalp, elbows, knees).
Modulates local immune responses, inhibits pathogenic T-cell activation, and promotes hair follicle regeneration, suitable for small, localized alopecia patches on the scalp or body.
Reduces skin inflammation by inhibiting inflammatory factor release, relieves itching, redness, and dryness, and repairs the skin barrier, ideal for localized acute or chronic eczematous lesions (e.g., flexural areas, limbs).
Highly Targeted & Clinically Proven Efficacy
Monochromatic 308nm light reaches the skin's basal layer, acting on key cells without wasting energy on healthy tissue. It boasts a 70 to 95% effective rate for vitiligo, psoriasis, and eczema, even stubborn joint/scalp/face lesions unresponsive to topical drugs or traditional UVB. Requiring only 10 to 20 sessions (vs. 30 to 40 for broadband UVB), mild to moderate conditions show reduced itching/scaling in 2 to 4 weeks.
Safe with Minimal Risks & Broad Applicability
Localized delivery and narrow band specificity minimize systemic side effects and long term UV harm; mild erythema (most common) occurs in <5% of cases and resolves spontaneously. Safe for adults, children (3+), and those with sensitive skin/comorbidities (e.g., diabetes) under medical guidance, non invasive, no needles/surgery, and avoids systemic medication burdens.
Convenient & Cost-Effective Home Therapy
Treatments last 30 seconds to 4 minutes with no downtime. Lightweight (0.1 to 0.3kg), wireless, and rechargeable, handheld devices enable home/travel/office use, eliminating frequent clinic visits. Long term use saves on recurring fees, medication costs, and productivity losses cost effective for chronic skin conditions.
| Product Name: | 308nm Home UVB Light Therapy for Skin Diseases |
|---|---|
| Wavelegth: | 308nm |
| Light Type: | UVB Light |
| Diameter of Light: | 2.25cm |
| Irradiation intensity: | 20/35/45/55/65 mW/cm² |
| Time Setting: | 0-180s Adjustable |
| Size: | 18*4*3.9cm / 7.09*1.57*1.54in |
| Input Voltage: | AC 100-240V, 50Hz/60Hz or DC 5V |
| Model Number: | PD02 Serials |
|---|---|
| Number of Diodes: | 6pcs / 9pcs |
| Display Mode: | LCD Screen |
| Treatment Size: | 4cm² |
| Dose Setting: | 0-5J/cm² Adjustable |
| Applications: | Psoriasis, Vitiligo, Eczema, etc |
| Net Weight: | 0.11kg / 0.24lb |
| Power Supply: | DC Charging & Rechargeable Lithium Battery (1800mAh) |
1*Host
1*Packing Bag
1*Protective Glasses
1*User Manual
1*Power Supply
