K-SECRET

K-SECRET: Korean Seoul 1988 skincare with retinal

K-SECRET (also written KSECRET or K secret) is a Korean derma skincare brand that combines traditional Korean ingredients with modern actives. Its main line, Seoul 1988, launched in 2024 and is built on retinal, a vitamin A derivative, in liposomal form. In the US, the line has been sold at Costco since 2026.

Are fine lines starting to show under your eyes, with concealer settling into them during the day, and eye cream alone no longer enough? That is why we chose K-SECRET’s retinal patches for evening care.

Why we chose K-SECRET

Patches are a simple way to bring retinal into eye-area care without adding another cream step. Seoul 1988 Retinal Glow Eye Patch pairs retinal with niacinamide, collagen, a peptide and a ceramide, and is fragrance-free.

Use retinoid patches in the evening, start 2–3 times a week and always apply SPF the next morning. Do not use them during pregnancy or breastfeeding.

Who K-SECRET is for

• You notice the first fine lines under your eyes and want evening care with retinal.
• You already have experience with retinoids, or want to start slowly on a small area.
• You are looking for fragrance-free patches.

If you mainly want hydration and a fresher look without a retinoid, choose Genabelle PDRN 360° Rejuvenating Eye Mask instead.

K-SECRET at VIONE

• K-SECRET Seoul 1988 Retinal Glow Eye Patch: hydrogel under-eye patches with retinal, niacinamide, collagen, a peptide and a ceramide, 60 pcs, fragrance-free.

K-SECRET: frequently asked questions

Is K-SECRET a Korean brand?

Yes. K-SECRET (KSECRET) is a Korean derma skincare brand. Its Seoul 1988 line launched in 2024 and is built on retinal.

What is retinal and how is it different from retinol?

Retinal (retinaldehyde) is a vitamin A derivative. Retinal is one conversion step closer to retinoic acid than retinol. Actual results and tolerability depend on the complete formula and how it is used.

How often should I use K-SECRET retinal patches?

Start in the evening 2–3 times a week and increase only if your skin is comfortable. Always use SPF in the morning. If you notice burning or peeling, skip the patches and go back to simple, well-tolerated care.

Are K-SECRET patches suitable for retinal beginners?

If you are new to retinoids, introduce the patches gradually and monitor how your skin responds. Avoid using them on irritated skin around the eyes and follow the manufacturer’s wear-time instructions. If hydration is your main priority, consider eye care without vitamin A derivatives.