FAQ

GHK-Cu is a naturally occurring copper peptide found in the body. It supports skin regeneration, boosts collagen production, and helps improve elasticity and firmness. It’s often used in skincare to promote a youthful, healthy-looking complexion.

GHK-Cu itself is not FDA-approved as a drug, but it is considered safe for cosmetic use in topical skincare products. Many studies have shown its effectiveness in improving skin appearance when applied consistently.

Yes. Topical GHK-Cu has been shown to penetrate the skin and support natural repair processes. Regular use can help reduce fine lines, improve firmness, and enhance overall skin tone and texture.

Yes, GHK-Cu can generally be used with retinol. In fact, they may complement each other—retinol promotes skin renewal while GHK-Cu supports collagen repair and reduces irritation. If you have sensitive skin, it’s best to introduce them gradually or use them on alternating nights.

PDRN (Polydeoxyribonucleotide) is a DNA fragment derived from natural sources that helps stimulate skin regeneration, repair, and hydration. It’s widely used in skincare for its anti-aging and healing benefits.

PDRN is extracted from carefully selected natural salmon and other DNA sources and purified for cosmetic use. It’s clinically studied for its ability to promote cell repair and support healthy, rejuvenated skin.

Yes, PDRN may benefit acne-prone skin. Its soothing and regenerative properties can help calm inflammation, repair skin barriers, and reduce the appearance of post-acne marks.

Yes, PDRN can be combined with vitamin C. Vitamin C brightens and protects the skin, while PDRN supports repair and regeneration—together they can create a powerful routine for healthier, more radiant skin.

Our fulfillment centers are equipped with advanced automation to ensure quick and precise order processing. Once you’ve placed an order, it’s immediately scheduled for dispatch, and there’s a short window to make changes. You have 30 minutes, during our customer service hours, to request modifications. After this period, or once the order is processed or shipped to our fulfillment center, changes cannot be made.

Note that we can’t alter shipping addresses once an order is placed and aren’t responsible for reshipping to a new address.

For any concerns or potential adjustments, contact us at support@koreanaskin.com, and we’ll check the status of your order to see if changes are possible.

Coupon codes should be entered in your shopping cart during checkout. Once the order is completed, the code can’t be added. Only one coupon code per order is allowed, and they can’t be used on subscription orders since they already have discounts. Some codes may also require a minimum order value. Before you finish your payment, make sure the coupon code has been applied correctly and that the total reflects the discount. If it’s not applied, try re-entering it.

If you have any issues, contact our Customer Service team at support@koreanaskin.com for help.

If you’re interested in purchasing larger quantities of our products, please reach out to us at support@koreanaskin.com. We’ll work with you to find the best pricing option for your needs.

Shipping is 100% free worldwide – enjoy healthy skin wherever you are!

Delivery times vary:

• USA & Canada: 5–7 business days
• EU: 5–7 business days
• International: 7–14 business days
• Australia: 7–14 business days

Once your order is processed, you’ll receive a confirmation email with a tracking link. Check your spam or junk folder if it’s not in your inbox. This link allows you to track your package’s status and progress.

For any questions or concerns, contact our customer service team at support@koreanaskin.com. We’re here to provide you with outstanding support and assistance.

🌍 Our international shipping fees cover only the shipping costs. Customs duties, taxes, and carrier brokerage fees are not included.

In some countries, customs may require the recipient to provide an ID number, like a unique ID, CPF, or tax code, before releasing the shipment. Import duties, taxes, and customs fees are the customer’s responsibility. Please check with your local customs office for specific details, as policies vary by country. Additionally, customs clearance can sometimes delay delivery. Customs might also refuse certain products, sending them back to our fulfillment center. It’s the customer’s responsibility to understand local import laws and comply with them. “Koreana Skin” is not liable for costs due to customs rejections.

For help, contact our customer service at support@koreanaskin.com.

If your package is marked as lost or hasn’t arrived within the expected timeframe, please take the following steps:

1. Check the Tracking Information: Review the tracking details. Sometimes, there are delays beyond the estimated delivery date.

2. Contact the Carrier: If the package is marked “lost” or there are no updates, reach out to the shipping carrier with your tracking number for an investigation.

3. Verify the Delivery Address: Make sure the shipping address provided during the purchase is correct to avoid misdelivery.

4. Follow Up: Stay in touch with the carrier and our customer support for updates.

For further assistance, contact us at support@koreanaskin.com. We’re here to ensure you receive your order as soon as possible.

At Koreana Skin, we’re dedicated to making our products available to as many people around the world as possible. Unfortunately, there are currently a few countries where we’re unable to deliver due to customs regulations or specific country requirements. We’re always working to overcome these hurdles, and we look forward to making our products available in even more locations soon.

Countries we currently do not deliver to:

• Israel
• Mexico
• Russia
• Ukraine
• United Arab Emirates
• Colombia

We only offer subscriptions if you manually select that option at checkout — it's never automatic.

If you're unsure, you can check your order confirmation email and click "View your order". This will open your order status page, where you can see if it’s a one-time purchase or a subscription.

Still need help? Just email us at support@koreanaskin.com or send a direct message on Facebook or Instagram with your name or order number, and we’ll gladly confirm it for you.

You can cancel your subscription anytime:

1. Open your order confirmation email.
2. Click “View your order” — this will take you to your order portal.
3. From there, you can manage or cancel your subscription directly.

If you need help or prefer we do it for you, just email us at support@koreanaskin.com or reply to your order email — we’re happy to assist.

Yes! You can manage, pause, or skip your subscription at any time. Just open your order confirmation email, click “View your order,” and access your customer portal to make changes.

Need help? Just email us at support@koreanaskin.com.

Yes — your order confirmation email includes a “Download Invoice” button. You’ll find the same option available on your order status page after purchase.

If you need an invoice issued to a company name or with specific business details, just email us at support@koreanaskin.com with your order number and company information — we’ll be happy to assist.

If you need to return an item for any reason, we’re here to help.

We offer a 60-day return policy, which means you have 60 days after receiving your item to request a return.

To be eligible for a full refund, the product must be unopened, unused, and in its original packaging.

If your product has been opened, you're still welcome to reach out. We evaluate these cases individually and may offer a partial refund at our discretion.

You’ll also need to provide proof of purchase.

To start a return, contact us at support@koreanaskin.com.

You can find more information on how to return your item here.

Simply reply to your order confirmation email or contact us at support@koreanaskin.com with your order number — we’ll guide you through the return process step by step.

No worries — just send us a photo of the item and your order number to support@koreanaskin.com. We’ll resend your product or issue a refund right away.