Why do we need to block harmful blue light?Harmful blue light mainly comes from the digital screens we are exposed to in our daily life. We need a pair of blue light glasses to protect our eyes from the harmful blue light from computers, mobile phones and TV.The Yuluki Blue light glasses feature the latest lens technology.Only harmful blue light is blocked, not all blue light should be blocked.Blocking harmful blue light through beneficial blue light which is is good for the eyes.The long-term exposure to blue light with wavelength between 400nm to 450nm is harmful to eye health. Blue light between 480nm and 500nm can affect the secretion of visual melanin and help to regulate physiological rhythm which is related to sleep, emotion, memory, and is actually beneficial to the human body.Why choose us?Yuluki has 25 years of experience as an eyewear manufacturer. We are committed to providing our customers with the best customer service and the highest product quality.We will carefully listen to the suggestions of customers, gain experience and improve the problem, and continue to grow and progress.
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.
Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.












