Summer Sale All Items 60% OFF
Free Worldwide Shipping On All Orders





Couldn't load pickup availability
Free standard shipping on orders
We are pleased to offer Free Worldwide Shipping on all orders, delivering to all countries and regions supported by our logistics network.
There are no restrictions on order quantity, parcel size, or shipment weight — every order ships at no cost to you. In addition, all customs duties, import taxes, and government-imposed fees associated with your shipment will be fully covered by us, ensuring you will not incur any extra charges upon delivery.
Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.
We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.
All return shipping expenses, including customs-related fees, are fully covered by us.
Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.
Retinal (retinaldehyde) is one conversion step closer to active retinoic acid than retinol, meaning faster results with theoretically similar irritation. K-SECRET's Advanced Shot uses retinal at 12% (an unusually high concentration) in liposomal delivery, with black rice extract for antioxidant support. 15ml at $19 is aggressive pricing for retinal at this strength.
For users experienced with retinol who want faster results, stepping up to retinal is the natural progression. 12% retinal is approaching prescription-strength territory; this is not a beginner product.
12% retinal delivers rapid cell turnover support and collagen stimulation, converting to retinoic acid in one step (vs retinol's two steps). Liposomal encapsulation delivers the active deeper and reduces irritation. Black rice provides antioxidant support. Over 6 to 12 weeks, expect visible anti-aging results faster than retinol.
PM only. Apply a pea-sized amount to clean, dry skin. Start once per week; build to 2 to 3 times per week over 4 to 6 weeks. Follow with moisturizer. SPF the next morning is mandatory. Avoid eye area. Not for pregnant or breastfeeding users.
Retinal is one conversion step closer to active retinoic acid. Faster results, similar irritation profile. For retinol-tolerant users, retinal is the upgrade.
Yes. Most retinal products are 0.1% to 0.5%. 12% likely refers to the concentration in the liposome complex rather than pure retinal percentage (encapsulated formulations list differently). Check ingredient list carefully.
Expect initial adjustment period: dryness, flaking, possible purging. Build slowly.
Texture improvement in 4 weeks. Visible fine line reduction in 8 to 12 weeks.
Keep retinoid night simple. No acids, no vitamin C same-night. Space carefully.
Pair with gentle cleanser and hydrating moisturizers to buffer irritation. Browse the Korean retinoid collection.
Related: anti-aging, retinal products.
Thanks for subscribing!
This email has been registered!