LUMINIEL I Q&A

Q1. What is the LLLT technology applied to this product?
A1. Low-Level Light Therapy (LLLT) is a technology that activates or suppresses specific biological substances through the irradiation of light within a particular wavelength range. In the medical field, it is widely used for skin treatment, regeneration, and pain relief.
Short-wavelength light has sterilizing and anti-inflammatory effects in the blue spectrum, amber light promotes collagen production and skin elasticity, and red light improves blood circulation and skin tone.
This technology is broadly used in dermatology, orthopedics (for pain management), and ophthalmology (for jaundice treatment), among other medical applications.

Q2. Who is Link Optics, the manufacturer of Luminiel?
A2. LinkOptics is a medical device manufacturer specializing in Low-Level Light Therapy technology.
Founded in 2004, the company has conducted over ten pre-clinical and clinical trials in collaboration with leading hospitals such as Seoul National University Hospital, Chonnam National University Hospital, Dankook University Hospital, and Chosun University Hospital.
These trials have focused on skin regeneration, whitening, vitiligo treatment, pressure ulcer treatment, and pain reduction.
Since all products are developed based on clinical validation, LinkOptics products are distinguished from most beauty device manufacturers in terms of both functionality and safety.

Q3. Clinical Trials Conducted – <I Patch>
A3. The Department of Skin Beauty at Gwangju Health University (Prof. Youn-Ju Kim’s team) conducted clinical tests to verify the efficacy and safety of the Luminiel I Patch for skin regeneration, elasticity, and whitening.
Results scientifically confirmed improvement effects, including up to 19.4% increase in skin moisture content and 38.5% improvement in skin elasticity.
(Refer to detailed clinical results)

Q4. Difference from LED Masks
A4. The improvement effects of LLLT devices must be validated through clinical testing to ensure that the applied wavelengths and power levels are both safe and effective.
While LLLT is inherently safe, its effects require consistent use — generally at least 10 sessions or more — to appear and last over time.
In contrast, conventional LED masks are often uncomfortable due to heat buildup and stuffiness inside the mask, making long-term use difficult.
The Luminiel I Patch was designed for comfort and verified through clinical testing to ensure both effectiveness and convenience.

Q5. Precautions and Possible Side Effects
A5. As with most medical and beauty technologies, LLLT can have minor side effects.
However, because it uses visible light wavelengths similar to natural sunlight, adverse effects are extremely rare.
We recommend avoiding continuous use on the same area more than three times in a row.
For individuals with photosensitive skin (e.g., sun allergy), excessive use may cause pigmentation or freckles, so moderation is advised.

Q6. Best Usage Method and Reason for Serum Exclusion
A6. Initially, the product included an adhesive serum co-developed with Korea Kolmar to help the patch adhere to the skin.
However, user feedback indicated that the stickiness made it inconvenient to use.
Since many users preferred to use their own skincare or moisturizing products, the serum was removed from the package starting in 2024.
For best results, use the patch with transparent skincare products (that do not reduce light transmittance).

Q7. Common Malfunctions – <I Patch>
A7. Some users experience charging issues due to incompatibility between their household charging cables and Luminiel devices.
Most USB Type-C cables are compatible.
Occasionally, battery defects occur, typically involving the stick-type battery.
If such an issue arises within one year of purchase, the battery will be replaced free of charge.

Q8. Cleaning After Use
A8. The Luminiel I Patch can be cleaned with water or alcohol wipes.
However, the stick and rechargeable battery parts must not be washed with water.
If necessary, they can be gently wiped with alcohol.

Q9. Concerns About Falling Off and Battery Inconvenience
A9. Unlike LED masks that are strapped to the face and stay fixed, the patch-type design allows freer movement but may come loose.
Stronger adhesives were tested, but long-term use proved harmful to the skin.
For best results, it is recommended to use the patch before bedtime or, when movement is required, to use the included fabric mask for better adherence.