Skip to product information
1 of 5

KSECRET SEOUL 1988 Serum

Regular price
$19.99
Regular price
$29.99
Sale price
$19.99
American Express Apple Pay Google Pay MasterCard Maestro PayPal UnionPay Visa
    KSECRET SEOUL 1988 Serum
    KSECRET SEOUL 1988 Serum
    KSECRET SEOUL 1988 Serum
    KSECRET SEOUL 1988 Serum

    🌿 WHY YOU'LL LOVE IT

    🌞
    2% Encapsulated Retinal Gentle, powerful anti-aging with no irritation.
    🌿
    Black Ginseng Complex Deep nourishment that revitalizes tired skin.
    🧬
    Peptides & Niacinamide Firms, brightens, and strengthens the skin barrier.
    🧖‍♀️
    For Sensitive Skin Soothing, fragrance-free, alcohol-free formula.

    A Glow You Can Feel

    Powered by 2% encapsulated retinal and black ginseng, this gentle yet effective serum smooths texture, fades dark spots, and boosts radiance—without irritation. Perfect for sensitive skin, it delivers visible results you'll love.

    Clinically Proven Glow

    Formulated with advanced encapsulated retinal, this serum transforms your skin without the harsh side effects. Expect smoother texture, brighter tone, and visibly healthier skin — all with zero irritation.

    Deep Hydration. Stronger Skin.

    Infused with black ginseng, niacinamide, and peptides, this serum restores your skin’s natural barrier while locking in moisture. The result? Smooth, supple, and resilient skin — from the very first use.

    Your Skin Deserves Luxury

    Why You’ll Love This Serum

    • Smoother Skin, Fast

      Encapsulated retinal works deep beneath the surface to refine texture, minimize fine lines, and boost cell turnover — with zero irritation.

    • Deep Nourishment

      With black ginseng and peptides, it hydrates, firms, and strengthens the skin barrier for long-term skin health and glow.

    • Safe for Sensitive Skin

      Fragrance-free and alcohol-free, this gentle formula is made for even the most reactive skin types. No peeling, no redness — just results.

    See the Difference with Every Application...

    Frequently Asked Questions

    Is this serum suitable for sensitive skin?

    Yes! The formula uses encapsulated retinal and is fragrance-free, alcohol-free, and dermatologist-tested — making it safe even for reactive or sensitive skin types.

    What’s the difference between retinal and retinol?

    Retinal (retinaldehyde) is a more potent and faster-acting form of vitamin A than retinol. It's clinically proven to deliver visible results quicker, while still being gentle when encapsulated.

    Can I use it every night?

    If you're new to actives, we recommend starting with 2–3 nights a week, then gradually increasing to nightly use as your skin builds tolerance. Always follow with a moisturizer.

    Can I use it with other products like niacinamide or hyaluronic acid?

    Absolutely. The serum already contains niacinamide, peptides, and hydrating ingredients. You can safely layer it with hyaluronic acid and barrier creams.

    Should I wear sunscreen while using this serum?

    Yes — since retinal increases cell turnover, your skin becomes more sensitive to sunlight. We highly recommend using a broad-spectrum SPF during the day.

    When will I see visible results?

    Most users report brighter, smoother, and clearer skin in 2–4 weeks, with continued improvements over 6–8 weeks of regular use.

    180,000+ Happy Customers

    Testimonials

    I’ve tried so many retinol products and always gave up because of the peeling. This serum changed everything — no redness, no dryness, just smoother, brighter skin within 3 weeks.

    Sofia M., 34, Combination Skin

    My dark spots and post-acne marks have faded so much since using this. It feels lightweight but really works. And it doesn’t irritate my sensitive skin at all.

    — Leila R., 29, Sensitive Skin

    I was nervous to try anything with vitamin A, but this serum is so gentle. My skin looks more even, and the glow is real — I even stopped wearing foundation most days.

    — Emily T., 41, Dry Skin