K-SECRET SEOUL 1988 Retinal Serum – Formulated with Advanced Retinal Liposome 2% and 58% Black Ginseng Extract | Fine Lines and Skin Texture Care Serum | Korean Skincare, 30ml / 1.01 fl oz

I love this serum! I’ve struggled with using retinal and retinol products due to drying out and some irritation, but this serum is both moisturizing and pairs well with moisturizers / hydrators and is gentle on my skin while also being very effective. My skin looks and feels great, and I’m just thrilled to be able to successfully use a retinal product routinely since it’s so valuable for anti-aging. There’s a light, pleasant scent and it absorbs & layers flawlessly. There no tackiness and leaves skin soft. Love it so much I have a subscription.

Combination skin/ non- sensitive, currently living in cool wet climate. I have been using this product for 6+ months and I’m completely obsessed with it!! Was recommended to me by an influencer who struggles with sensitive acne prone skin if that info helps! I’ve noticed my skin has never felt smoother since using it. Seems like my fine lines in my t-zone have reduced and my smile lines too!! I use it every night. After toning with all natural witch hazel I pair with gentle moisturizer for sensitive skin and that’s it. Doesn’t have a strong smell and product melts into your skin.

K Secret Retinal Serum has officially earned a spot in my nighttime routine. Unlike some retinal products that feel heavy or irritating, this one goes on silky smooth, absorbs quickly, and doesn’t leave my skin feeling tight. After a few weeks of consistent use, I noticed my skin looking brighter, smoother, and more even-toned. Fine lines around my eyes and forehead started to soften, and my overall texture feels more refined. It gives results without the harsh side effects—no flaking or redness, just a gentle but effective boost. I also appreciate the thoughtful formula: it’s lightweight, layered well under moisturizer, and didn’t clog my pores. The pump packaging makes it easy to use the right amount without waste. If you’re looking for a retinal serum that delivers visible results while still being kind to sensitive skin, this is definitely worth trying.

Great retinal serum. Super gentle but effective!

I love this retinal, it brightens and fades hyperpigmentarion.

Not irritating because of its formula as a retinAL (but I’ve used retinOL regularly, so my skin has gotten used to it) , excellent price, and actually works. Worth trying

I really liked it. It’s an effective yet gentle retinal serum, great even if you’re new to retinoids. The texture is lightweight, absorbs well, and doesn’t leave the skin sticky. With consistent use, my skin looked smoother and more refined.

Buy this if you wanna skip retinol and jump right to retinal. Do NOT buy this if you're graduating from retinol to retinal. I purchased in mid May, we're now in late August and I haven't seen ANY changes in my skin. Admittedly, I hadn't seen the word "liposome" before so I thought it was just a fancy way to deliver the retinal deeper into the skin..."2% retinal liposome" = .02% retinal. Meaning it's great for people with sensitive skin and/or new to retinol/al. No noticable scent. The texture and feel was great...you know how butter feels when you put it in the microwave long enough to soften (but you maybe let it go for a little longer lol)? That's how smooth and soft it felt when applying. Read: 3 stars here isn't meant to be negative, just had an average experience with this.