Refund Policy

Returns. You may request a return within 30 days of delivery for unopened, unused products in their original packaging. Contact sungjin.kim@6letters.co.kr with your order number before sending anything back; returns sent without our authorization will not be accepted.

Opened products. For safety and quality reasons, opened or used supplements cannot be returned. If your product arrives damaged, defective or incorrect, email us within 7 days of delivery with your order number and photos of the product and packaging. After review we will send a replacement or issue a refund or store credit.

Refunds. Approved refunds go to your original payment method within 10 business days of approval. Your bank may need additional time to post it. Original shipping fees are non-refundable unless the problem was caused by our error or the fulfillment partner.

Return shipping. The customer pays return shipping for change-of-mind returns. We cover it when the item was damaged, defective or incorrect.

Non-returnable. Opened products (except as above), gift cards and discounted final-sale items.

Exchanges. To exchange an item, return it as above and place a new order.

Questions. sungjin.kim@6letters.co.kr