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 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.

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 was looking for a reasonably priced retinol to replace my Paula's choice 1% retinol. I have been using this product for about 2 months it is not irritating my skin but I have a tolerance to retinals I'm not sure how I feel about this product yet I definitely prefer the Paula's choice 1%. I feel it did more for my skin then the k- secret 2% retinol but if you are on a budget this is better priced I don't think I will repurchase this again. But I will finish up this bottle so it's not that bad and if you put too much on your skin will get very sticky so less is more I don't like the texture but the good points are it has not irritated my skin and I have very sensitive skin

Utmärkt produkt

BARDZO DOBRE KOSMETYKI

Its very effective go for it.

Excellent produit, pour les rides et profondes! Je reprend certains commentaires, c est le vrai serum !! Pourquoi : 1 il y a la marque k secret sur le devant et au dessus 2 l emballage n est pas lisse 3 la boîte est bien fermé par un " scotch" 4 la notice ingrédients etc prend bien les 4 côtés de l emballage 5 le verseur n est pas très haut ... bref c bien le vrai pas une copie !! Ensuite , pour les débutantes en retinal , le retinal est plus puissant que le retinol, il faut commencer à en mettre 1 à 2 fois par semaine, pour la peau s habitue, et toujours mettre une bonne crème hydratante apres , attendre 2-3 mns et on mets la crème, pour eviter les irritations rougeurs etc ... toujours le soir car le retinal et le soleil ne s aime pas lol et pour finir toujours mettre le lendemain matin de la creme solaire même raison que pour le soir ! Il faut compter en général 2-3 semaines pour voir les effets comme pratiquement tout les soins de beautés ! Ne mettez pas de crème hydratante avec du retinol ou retinal dedans , cette formule est déjà très puissante ...

I love the cream make your skin soft. I’m highly recommended.