Korean Moisturizer for Dry Skin: A Barrier-First Ingredient Guide

I'm Dr. Hongseok Kim, a board-certified Korean dermatologist with 21 years of practice and the medical director of VOS Dermatology Clinic in Gangnam, Seoul, in front of Dosan Park. I see every patient myself, from the consultation to the treatment.

When patients ask me for a Korean moisturizer for dry skin, my answer starts with the barrier, not the brand: draw water in, keep it there, and be careful with the active ingredients that can thin out your tolerance. In this video I reviewed the skincare ingredients that stood out in Korea over the past year, from retinol to squalane, and showed the products I tried myself. This page is based on my YouTube video from January 2025, rewritten for readers abroad, and the video above can be watched with translated captions. I leave the brand names out here and keep the reasons, because the ingredient list is what you can check on any product.

Hyaluronic acid: the water-drawing step, fragrance-free

Short answer: hyaluronic acid pulls water into the skin and now appears in a large share of skincare products, so for dry skin the questions are which form and whether the formula is free of fragrance (in the video at 09:47).

Hyaluronic acid draws water and also acts as a signalling substance in the skin, which is why it matters so much for winter moisturizing. Its molecule is large and hard to absorb, so products now split it into several forms: sodium hyaluronate crosspolymer, hydrolysed sodium hyaluronate, sodium acetylated hyaluronate and others (in the video at 10:00). A long list of these names is one ingredient family in different sizes, not a crowded formula (in the video at 11:48).

Low-molecular serums feel slightly sticky and viscous, which suits a dry environment. With a humidifier running, they can pull water from the air and hold it on the skin (in the video at 11:03). The thing I care about most when choosing these products is that they have no fragrance (in the video at 12:04). Remember that drawing water in is only half the job; for dry skin something has to keep it there, which is the next step.

Squalane: the step for skin that stays dry

Short answer: squalane is a light oil that closely matches the squalene in your own sebum, so adding it to your cream raises moisturizing power without heaviness (in the video at 12:18).

Squalane has been used for a long time, but I think it is still underrated for what it does. Early squalane came from animal sources such as shark liver; today it is mostly refined from plants such as grape seed, canola, sunflower, olive and sugarcane (in the video at 12:42). Because its shape is almost the same as squalene, a component of sebum, it feels much less heavy than other oils on the skin (in the video at 12:59).

If your cream is no longer enough in winter, mix two or three drops of squalane oil into it (in the video at 13:18). People whose body skin is very dry, cracked or itchy, and who feel their moisturizer is not doing much, can do the same (in the video at 13:27). With a high-squalane oil, dry skin can take up to about five drops, while skin that is oily yet tight needs only one or two (in the video at 16:01). It can be used on its own or mixed with your other products.

Reading the label of a moisturizing cream

Short answer: look at what comes right after water; when an oil such as squalane sits there, the cream is oil-led and should hold water well (in the video at 13:51).

In the cream I showed, squalane was listed directly after purified water, which tells you the formula is built around oil, with smaller amounts of water-drawing ingredients such as hyaluronic acid forms alongside. A cream like that can be enough on its own for many people, but very dry skin may still need a separate hyaluronic acid layer or extra oil (in the video at 14:27). Some creams also add acetyl hexapeptide, a peptide aimed at expression lines; absorption limits what it can do, so do not expect it to relax muscles the way an injection does (in the video at 14:36). Moisturizing remains the main job.

Retinol and retinal on dry skin: start low, go slow

Short answer: retinol and retinal are useful for wrinkles and pores, but retinal is stronger and more irritating, so dry or sensitive skin should begin with a small amount and build up (in the video at 00:50).

Retinol converts to retinoic acid in two steps, while retinal needs only one, so at the same concentration retinal acts more strongly and can also sting more (in the video at 01:42). Retinoic acid itself is a prescription medicine; skincare uses retinol and retinal. My rule never changes: use a little, increase gradually, and if your skin stings or becomes uncomfortable, stop and restart later (in the video at 02:01). One reason I like retinol formulas that also contain cica ingredients is that the retinol can make skin a little sensitive while the cica helps the barrier recover (in the video at 03:00).

For dry skin this is the key caution. People with healthy, sturdy skin rarely have a problem, but skin that reddens easily, is thin, very dry or reactive needs care with a retinal product at the start (in the video at 04:06). Use these products in the evening, and finish an opened tube within about three months, because oxygen exposure can lower potency and change the colour (in the video at 04:31).

PDRN and spicule products: what they mean for a fragile barrier

Short answer: PDRN is a regeneration ingredient borrowed from medicine, while silica spicules irritate the surface on purpose, which can help absorption but must be dosed gently (in the video at 05:03).

PDRN, polydeoxyribonucleotide, is derived from DNA material and was used in hospitals for a long time to help skin regenerate and wounds recover; in skincare it is used with steady application for anti-ageing (in the video at 05:05). If PDRN for dryness interests you, my article on PDRN in Korea for dry skin compares the cream and injection routes.

Spicule products contain tiny silica needles that lodge in the surface. The skin tries to push them out, turnover speeds up, and the micro-channels help the next products, such as hyaluronic acid, PDRN or other moisturizing and repairing ingredients, absorb better (in the video at 06:52). The same mechanism can tip into inflammation if you overdo it. Do not be greedy: start about every three days, narrow the interval only if skin stays comfortable (in the video at 07:39). When I rubbed a higher strength on vigorously out of curiosity, my skin reacted, which is exactly what a sensitive or dry barrier should avoid. Wear sunscreen more carefully during the day, and after a clinic procedure give the skin about a week to recover before using them again (in the video at 08:51).

How I would build a routine for dry skin

Short answer: moisturizing comes first, PDRN supports recovery, and retinoids address wrinkles; the most basic, well-made products are the ones that keep proving themselves (in the video at 16:17).

For dry skin I would put the hydrating and sealing steps in place first, then add actives one at a time so you can tell what your skin tolerates. If your skin is oily rather than dry, my page on choosing a Korean moisturizer for oily skin explains how to keep these steps light. When reactive skin is the bigger issue, my note on a barrier-first face pack routine is a good next read. At the clinic we start with skin type analysis with VOS Skin MBTI, because skin that feels dry can behave very differently underneath. You can also see creator experiences at VOS.

Results vary from person to person, and the right plan for your skin is decided at an in-person consultation.

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Results, swelling and recovery vary from person to person. This page is general information from VOS Dermatology Clinic based on Dr. Kim's video and does not replace an in-person consultation.