Return & Refund Policy

We want you to feel confident in your purchase. If you need to return an item, please review the policy below.

Returns

We accept eligible returns within 30 days of delivery.

To be eligible for a return, your SINE product must be:

• Unopened and unused
• In its original condition and packaging
• Returned with proof of purchase or your order number

Opened or used products are not eligible for return.

To initiate a return, please contact us at hello@sineusa.com before sending your product back. Returns sent without first contacting us may not be accepted.

Refunds

Once your return is received and inspected, we will notify you whether your refund has been approved.

If approved, your refund will be issued to your original payment method. We aim to process approved refunds within 5–7 business days after inspection. Your bank or credit card provider may require additional time for the refund to appear in your account.

Original shipping charges, if applicable, are non-refundable.

Return Shipping

For standard returns, customers are responsible for return shipping costs. Return shipping costs are non-refundable.

We recommend using a trackable shipping method, as SINE cannot be responsible for return packages lost in transit.

Damaged, Defective, or Incorrect Items

Please inspect your order when it arrives.

If your product arrives damaged or defective, or if you receive the incorrect item, contact us at hello@sineusa.com as soon as possible so we can evaluate the issue and make it right.

For returns resulting from an error on our part or an eligible damaged or defective product, SINE will cover the applicable return shipping costs.

We may request photographs of the product and packaging to help us evaluate the issue.

Exchanges

We do not offer general product exchanges.

If you receive an incorrect, damaged, or defective product, please contact hello@sineusa.com and we will assist you with a replacement when appropriate.

Pre-Orders

Pre-orders are subject to the same return policy. The 30-day return period begins when your order is delivered, not when the pre-order is placed.

Questions

For questions about a return or refund, contact us at:
hello@sineusa.com