Frequently Asked Questions

Most frequent questions and answers

Basic Red Light Therapy Questions

Red light therapy (RLT) is a treatment that uses specific wavelengths of light—both visible red light (630-700nm) and invisible near-infrared light (NIR, 700-1200nm)—to improve skin appearance, reduce inflammation, and promote healing. It works by stimulating mitochondria, the powerhouses of your cells, to produce more energy, leading to various health and wellness benefits. The combination of red and near-infrared wavelengths allows for both surface-level benefits and deeper tissue penetration.

Red light therapy works at the cellular level. Both the red light and near-infrared wavelengths penetrate your skin at different depths and are absorbed by your cells, particularly by the mitochondria. This stimulates ATP (adenosine triphosphate) production, increases cellular energy, reduces oxidative stress, and promotes tissue repair and regeneration. The red light (630-700nm) works more effectively on surface-level tissues like skin, while near-infrared light (700-1200nm) penetrates deeper to reach muscles, joints, and bones.

Yes. There is substantial scientific research supporting the efficacy of red light therapy. Numerous peer-reviewed studies have demonstrated its benefits for skin health, pain reduction, inflammation, muscle recovery, and other health-related outcomes. The technology has been studied for over 40 years and is used by healthcare professionals worldwide.

Red light therapy actually combines two types of light: visible red light (630-700nm) and invisible near-infrared light (NIR, 700-1200nm). The visible red light penetrates a few millimeters into the skin and is excellent for skin conditions, collagen production, and surface-level treatments. Near-infrared light penetrates much deeper into tissues, reaching muscles, bones, and joints, making it an effective tool for pain relief, reducing inflammation, and promoting deeper tissue healing. High-quality devices, including all Zen Glow products, combine both wavelengths for maximum therapeutic benefits across all tissue depths.

Benefits and Applications

Red light therapy has shown benefits for:

•Skin conditions (acne, rosacea, eczema, psoriasis)

•Anti-aging (reducing wrinkles and fine lines)

•Hair loss

•Wound healing

•Joint pain and inflammation

•Muscle recovery

•Sleep quality

•Mood and mental clarity

•Seasonal affective disorder

Red light therapy reduces pain through several mechanisms: it decreases inflammation, improves blood circulation to damaged tissues, reduces oxidative stress, and stimulates cellular repair. This makes it effective for both acute injuries and chronic pain conditions like arthritis.

While red light therapy isn’t primarily a weight loss treatment, some studies suggest it may help reduce fat cell size when combined with exercise. It can also improve muscle recovery, allowing for more effective workouts. However, it should be considered a complement to, not a replacement for, a healthy diet and exercise.

Yes, red light therapy is excellent for skin health. It stimulates collagen production (reducing wrinkles), decreases inflammation (helping with acne and rosacea), improves circulation, accelerates healing, and gives the skin a healthier appearance. Many users report improved skin tone, texture, and reduced signs of aging.

Safety and Precautions

Yes, red light therapy is considered very safe when used as directed. It’s non-invasive, non-thermal, and doesn’t use harmful UV rays. Red light therapy has been studied extensively and has very few reported side effects. All Zen Glow devices are designed with safety as a priority and comply with international safety standards.

Side effects are rare and typically mild. Some users might experience temporary redness or warmth in the treated area, which usually subsides quickly. People with certain photosensitizing medications or conditions should consult with a healthcare provider before use.

While generally safe, red light therapy may not be suitable for:

•People with photosensitivity disorders

•Those taking medications that increase light sensitivity

•Individuals with active cancers (without medical supervision)

•Pregnant women (due to limited research)

•People with epilepsy (flashing lights may be a concern)

Always consult with a healthcare professional if you have any medical conditions or concerns.

Zen Glow Products

Zen Glow devices are designed with optimal therapeutic wavelengths (630 and 660nm red and 810, 830 and 850nm near-infrared), clinical-grade power output, and even light distribution. Our products undergo rigorous testing, use high-quality components, and are designed specifically for the Thai market with local support and warranty service.

Your choice depends on your specific needs:

•Panels (60, 300, etc.): Best for treating larger areas like back, chest, or multiple areas simultaneously

•Masks: Ideal for facial treatments, anti-aging, and skin conditions

•Portable devices: Perfect for targeted treatment, travel, or on-the-go use

•Beds (Oyster Pro/One): Professional-grade full-body treatment

Consider your treatment goals, budget, and how much body area you need to treat when selecting a device.

No, Zen Glow devices emit extremely low levels of electromagnetic fields (EMF), well below international safety standards. We test all our products to ensure they meet strict safety guidelines. The type of light emitted by our devices is beneficial, not harmful.

Zen Glow panels, masks, and portable devices come with a 3-year warranty covering manufacturing defects and component failures under normal use. Our premium beds (Oyster Pro and Oyster One) come with an extended 5-year guarantee. We also offer a 30-day satisfaction guarantee. Please see our warranty page for complete details.

Purchasing and Shipping

Yes, we offer shipping to all provinces in Thailand. Delivery times vary by product type:

•Panels: 4 to 5 weeks

•Beds (Oyster Pro and Oyster One): Up to 8 weeks

•Masks: 2 to 4 weeks

We accept multiple payment methods including:

•Credit/Debit cards

•Bank transfers

•PromptPay

•PayPal

•Installment payment options through partner banks

Yes, we ship to select countries in Southeast Asia. International shipping rates and delivery times vary by destination. Please contact us for specific information about shipping to your country.

We offer a 7-day satisfaction guarantee. You can return it within 7 days for a refund of the product value only (shipping costs and taxes are not refundable). Products must be returned in perfect condition in their original and unopened packaging. Please note that shipping costs for returns are the responsibility of the customer unless the product is defective.

Business Customers (B2B)

Yes, we offer special pricing and packages for business customers, including spas, clinics, fitness centers, and wellness practitioners. Please contact our B2B team support@zenglow.asia for a customized quote based on your business needs.

Absolutely! We provide comprehensive training for business customers, including proper device operation, treatment protocols, and best practices for different applications. Training can be conducted in-person in Phuket or via video conference.

Yes, we provide our business partners with marketing materials including brochures, posters, digital assets, and educational content to help you promote red light therapy services to your clients.

Yes, we offer flexible rental and leasing options for businesses who prefer not to make a large upfront investment. Please contact our B2B team to discuss rental terms and availability.

Maintenance and Support

Clean your device by first unplugging it and allowing it to cool completely. Use a soft, slightly damp cloth to wipe the surface. For masks and devices that contact skin directly, you can use a mild alcohol solution (70%) for sanitizing. Never immerse any part of the device in water or use harsh chemicals.

The high-quality LEDs in Zen Glow devices are rated for 50,000+ hours of use. With typical usage of 20 minutes per day, 5 days a week, the LEDs should last for over 20 years. There’s no need to replace bulbs or LEDs during the normal lifespan of the device.

If you experience any issues with your device, please contact our customer support team. We’ll troubleshoot the problem and, if necessary, arrange for repair or replacement under warranty. Most issues can be resolved quickly with proper guidance.

Yes, we provide comprehensive after-sales support including:

•Technical assistance

•Usage guidance

•Treatment recommendations

•Warranty service

•Repair services (in and out of warranty)

Our support team is available via phone, email, and Line messaging during business hours.

Getting Started

For panels, position yourself 15-60cm away from the device for optimal light absorption. For masks and targeted devices, follow the specific instructions included with your product. The effectiveness of light therapy decreases with distance, so closer is generally better while remaining comfortable.

For skincare applications, use red light therapy on clean, dry skin before applying products. This allows the light to penetrate without barriers. After your session, you can apply your regular skincare products. Some products (particularly those with retinol or acids) may increase sensitivity, so start with shorter sessions if using these.

For best results, expose your skin directly to the light. Clothing blocks the light from reaching your skin. However, for comfort and privacy, you can wear minimal, light-colored clothing if necessary, understanding that this may reduce effectiveness.

Red light therapy generally complements other wellness and beauty treatments. It can enhance the effects of skincare routines, physical therapy, massage, and exercise recovery. However, consult with a healthcare professional if you’re undergoing medical treatments or using photosensitizing medications.

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