Once we receive your return, we’ll process your refund within 5-7 business days. Refunds will be credited back to your original payment method. For more details on how to start a return, visit our Returns page or contact our support team—we’re here to help! Shop confidently knowing we’ve got you covered.

1. Press and hold the power button for 2 seconds to turn on the device. When the device is turned on, it will automatically be set to YELLOW Absorption Mode, and each short press of the power button will change the mode and LED color.

2. In order to set the desired mode, briefly press the power button. Press the intensity button once for each intensity level increase.
*Intensity adjustment is not available for vibration mode.

3. If the head is strongly pressed against the skin during use, the effect may be less noticeable. Therefore, lightly touch the concerned area during use.

4. The device will automatically turn off after 3 minutes of use. If you want to stop the device during use, press and hold the power button for 2 seconds.

5. For hygienic use, after use, clean it thoroughly with a dry cloth or cotton pad and store it by closing the cap or combining it with the Shumage Cream Cap.

6. Charging can be done by connecting the enclosed USB charging cable to the USB charging terminal on the back of the device.
*Full charging time: approximately 2-3 hours.

To achieve the ultimate glass-skin glow, follow these simple steps:

1. Prep: After cleansing, apply your favorite toner to balance the skin's pH.
2. Apply: Dispense a proper amount of the serum onto your fingertips.
3. Absorb: Smooth evenly across the face and neck, then gently tap with your palms to aid maximum absorption.
4. Seal: Follow with your moisturizer and SPF during the day to protect your newfound radiance.