This Korean serum with retinal is three times more effective than retinol at combating wrinkles (and doesn’t irritate the skin)

For years, if you asked for the quintessential ingredient to treat wrinkles, fine lines, and other signs of aging, retinol was the answer. However, for some time now, its older brother, retinal, has been slowly gaining ground.

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The reason? Both are vitamin A derivatives, but retinal acts faster on the skin as it accelerates cell renewal. This translates into a more effective reduction of wrinkles, fine lines, and spots.

At EL PAÍS Escaparate, we’ve found a serum that incorporates this powerful active ingredient, bears the seal of Korean cosmetics, and has won over thousands of users on Amazon. “It’s the best I’ve tried. I love it because it really delivers on its promises; wrinkles are visibly less deep, and sagging improves a lot with this product,” confesses one buyer. She is referring to the Retinal Liposomes 2% + Black Ginseng from K-Secret SEOUL 1988, a bestseller that has the anti-aging gift.

An ally to win the battle against wrinkles

This retinal serum deserves a place in the toiletry bag of those looking for a highly effective anti-aging treatment. It could be defined as a multi-action all-rounder that improves the overall appearance of the skin: it reduces wrinkles and expression lines, evens out tone, improves texture, diminishes spots, minimizes pores, hydrates, illuminates, and strengthens the skin barrier.

The ingredients behind its Korean formula

Korean compositions are true cult symbols in the world of beauty. The interesting thing is not just one ingredient, but how the active ingredients are combined. And this serum is a clear example:

You can find liposomal retinal to combat wrinkles and pigmentation, and black ginseng extract, known for its powerful antioxidant, anti-inflammatory, and collagen-stimulating properties.

To this base are added active ingredients such as bakuchiol, a plant-based active with properties similar to retinol but gentler on the skin; niacinamide, which evens tone and improves texture; vitamin C, ideal for boosting radiance and protecting against free radicals; and peptides, responsible for stimulating collagen production and improving firmness.

Method of use: how do I include it in my beauty routine?

It is recommended to apply it at night on clean, dry skin. A small, pea-sized amount is enough to cover the entire face. Afterward, massage it in and let it absorb completely.

Ideally, start using it two or three times a week and gradually increase the frequency according to skin tolerance.

Furthermore, it is important to remember that, as it is an active ingredient that can sensitize the skin to sun exposure, it is essential to apply sunscreen every morning to protect it adequately.

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Reviews from those who have tried it

A bestseller among Amazon shoppers with over 4,000 reviews and an average rating of 4.4 out of 5 stars. What does the digital community of the major e-commerce platform say? Here are some of their user experiences after incorporating it into their toiletry bag:

“Real results. I chose this serum based on recommendations and good reviews, and they weren’t wrong. Since I switched to the Korean routine, I can’t believe how my skin has changed; it rejuvenates you like no other more expensive brand has achieved.”

“A safe bet, it’s the best serum. I’m in love with this product. I had already heard about this brand, but until now I hadn’t bought anything. I finally bought it and couldn’t be happier. It refines pores and smooths the skin, giving it a more luminous and juicy appearance. A total success.”

Frequently asked questions about K-Secret SEOUL 1988 retinal serum

Who is it indicated for?

It is suitable for all skin types. It is ideal for mature skin that wants to improve elasticity and reduce signs of aging, but it is also perfect for sensitive skin as it has higher tolerance. Thanks to its antibacterial properties, it is even beneficial for acne-prone skin.

Can it be combined with other acids?

It is most advisable to avoid using it in the same routine as exfoliating acids, such as glycolic, salicylic, or lactic acid, as the combination can increase skin sensitivity and irritation. If you want to incorporate both active ingredients, it is ideal to alternate them on different nights and, of course, use sunscreen every morning.

How much quantity does the package include?

30 ml.

Is it vegan?

Yes.

[Remember that if you are an Amazon Prime user, all purchases have free shipping costs. Amazon offers a free and no-obligation trial period for 30 days.]

*All purchase prices included in this article are updated as of July 26, 2026.

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