COSRX Hyaluronic Acid Moisturizing Cream, Long-Lasting Hydration Rich Moisturizer, 57.8% Sea Buckthorn Water, 3000ppm Sodium Hyaluronate, Sensitive Dry Skin, Korean Skin Care

"The Cream That Doesn't Feel Like a Cream. The Tightness That Doesn't Come Back by Noon."

Something about the morning routine matters more in winter. I'm Yuki. Songwriter, Seongsu-dong. My skin runs dry year-round, and Seoul heating does something specific to it - the air that crackles a little when you breathe, the tightness that is already present before the day has asked anything of you. I have tried things that work for an hour. Things that work until the first time you step outside. What I need is something that seals, holds, and does not feel like it is wearing me.

The COSRX Hyaluronic Acid Intensive Cream is built on 57.8% Hippophae Rhamnoides Water - sea buckthorn water, a botanical with nourishing and antioxidant properties that forms the dominant base of the formula. Into that base: 3,000ppm Sodium Hyaluronate for deep moisture retention and visible fine line filling, Sunflower Seed Oil and Macadamia Oil for barrier-supporting nourishment, Panthenol and Allantoin for calming and conditioning, and Arginine for additional hydration support. Hypoallergenic, dermatologist tested, parabens-free, sulfates-free, phthalates-free, no animal testing. The texture is described as cloud-soft - none-oily yet deeply hydrating. Applied after essence, patted gently along the skin texture. For skin that has been asking for something that holds. 🌙

What is sea buckthorn water and why is it the base of this formula?

Sea buckthorn - Hippophae Rhamnoides - is a plant known for its high concentration of vitamins, antioxidants, and fatty acids. The brand uses the water derived from it as 57.8% of the formula rather than plain water, which means the base itself is delivering nourishing and antioxidant-rich properties rather than simply acting as a carrier for the other ingredients. When an active botanical water replaces plain water as the dominant formula ingredient, every part of the formula benefits from that base. For dry skin specifically, a base that is already nourishing before the other ingredients are considered sets a different starting point than a water base provides.

🌙 Yuki's Note: Hippophae Rhamnoides Water - sea buckthorn botanical water. Known for its antioxidant content and skin-nourishing properties. Used here as the formula's primary base rather than plain water, at 57.8% of the total formula weight.

What does 3,000ppm of hyaluronic acid actually mean in a moisturiser?

PPM (parts per million) is the measurement of how much of an active ingredient is present relative to the whole formula. At 3,000ppm, Sodium Hyaluronate is present at a meaningful concentration that delivers two functions simultaneously: drawing moisture into the skin and filling in the skin surface to visibly reduce the appearance of fine lines. Hyaluronic acid works by binding to water molecules - one molecule can hold many times its weight in water. In a cream format sealed over a hydrated skin surface, that moisture-binding function works to lock what is already there rather than evaporating. The brand describes this specifically as filling in the skin to reduce the appearance of fine wrinkles, which reflects the plumping effect of well-hydrated skin rather than a structural correction.

The cream says "none-oily yet deeply hydrating." How is that possible?

The formula achieves this through the combination of its base and its texture architecture. The sea buckthorn water base, Glycerin, and Betaine provide hydration from water-binding and conditioning ingredients rather than from a heavy oil-dominant formula. The Caprylic/Capric Triglyceride and Sunflower Seed Oil and Macadamia Oil are present as barrier-supporting emollients rather than as the primary moisturising mechanism - they are there to seal and protect rather than to feel rich. Dimethicone contributes the soft, smooth finish without the greasiness that heavier silicones produce. The result is a cream that delivers intensive hydration without the tacky or oily after-feel that makes heavy creams incompatible with day wear or sensitive skin.

Is this suitable for sensitive skin, and are there any ingredients to watch for?

The brand's hypoallergenic claim and the clean beauty positioning - parabens-free, sulfates-free, phthalates-free, dermatologist tested - are all relevant for sensitive skin. The Allantoin and Panthenol in the formula are both calming, barrier-supporting ingredients that are specifically well-tolerated on reactive skin. The formula contains no artificial fragrance, which removes one of the most common sensitive skin triggers. Dimethicone, which appears in the formula, is generally well-tolerated and actually protective for sensitive skin - it creates a barrier that shields the skin surface from irritants. The brand recommends performing a patch test before full face use as a standard practice, which applies for any new moisturiser on sensitive skin even with the hypoallergenic designation.

When in the routine does this go, and does it work with other products?

The brand's instruction places this after the Hyaluronic Acid Hydra Power Essence - meaning the cream follows a hydrating essence or serum step rather than being applied to bare skin after cleansing. Applied after the essence has absorbed, the cream seals the hydration the previous steps delivered. Patting the cream gently along the skin texture rather than rubbing helps it absorb evenly without disturbing the layers beneath. For a routine with a serum or ampoule step, the cream comes after those. For a minimal routine, applying directly after toner over clean skin also works, though the hydration seal is more effective when there is already a moisture layer present to lock in.

Does this work for ageing or mature skin concerns as well as for dryness?

The formula targets both dry and dehydrated skin and visible fine lines, which the brand lists as the product's two primary concerns. Hydration and fine line reduction are related concerns - well-hydrated skin plumps the surface, which visibly reduces the appearance of fine lines without the structural change that active anti-aging ingredients would produce. The 3,000ppm Sodium Hyaluronate specifically does this plumping work. For skin that is primarily concerned with maintaining softness and reducing the look of dry-line texture rather than requiring actives-based anti-aging treatment, this formula addresses that need directly. For mature skin with specific anti-aging priorities, this cream works well as a hydration base alongside a separate peptide or retinoid step in the routine.

Worth Knowing

57.8% Is the Starting Point, Not the Feature: The dominant ingredient in this formula is sea buckthorn water - not plain water, not a humectant blend, but a botanically-active water base that makes up more than half the formula by weight. Every other ingredient - the hyaluronic acid, the conditioning oils, the calming allantoin - works within that nourishing base rather than within a neutral carrier. This is a construction decision, not a marketing addition.

3,000ppm Hyaluronic Acid - What the Number Produces: At this concentration, Sodium Hyaluronate delivers the moisture-binding and surface-filling function that the brand describes as reducing the visible appearance of fine wrinkles. The plumping effect is visible as softer, more even skin texture - not a structural change, but the kind of improvement that makes the skin look more rested and hydrated in natural light. Consistent daily use builds and maintains this effect rather than producing a single peak result.

None-Oily Does Not Mean Low Hydration: The cream's non-oily texture is sometimes read as lightweight in the sense of minimal. The design here is specifically none-oily yet deeply hydrating - the softness and non-greasiness come from how the formula is built, not from reducing the hydration payload. For dry skin that has found rich creams too heavy to wear during the day and lighter creams insufficient overnight, this formula occupies the space between those two categories deliberately.

Patting in, Not Rubbing - Why the Application Method Matters: The brand specifies gently tapping the cream along the skin texture after application. Patting creates gentle pressure that pushes the formula into the skin's surface without disturbing the layers that have already settled beneath it. For sensitive skin specifically, this method avoids the friction that rubbing produces, which can trigger redness in reactive skin. The cream's texture responds to the warmth of gentle patting rather than to vigorous blending, which is what produces the smooth, even absorption the brand describes.

Clean Beauty Credentials Are the Full List: Hypoallergenic, dermatologist tested, no animal testing, parabens-free, sulfates-free, phthalates-free. For sensitive skin building a routine around formulas that remove as many variable irritants as possible, having the full clean credentials confirmed on a moisturiser - the product with the longest daily contact time on the skin - is particularly relevant. The lack of artificial fragrance is the most practically significant of these for reactive skin.

Using It After Essence Gets the Most From the Formula: Applied over a hydrating essence or serum, the cream's primary function becomes locking in the moisture the previous step delivered. Applied directly over bare, cleansed skin, it provides hydration on its own. Both work - the sealed-over-essence method gets more from the formula because there is more moisture present to seal. For a routine that already includes hyaluronic acid as a serum or essence step, this cream is the logical final layer rather than a standalone product.

57.8% sea buckthorn water. 3,000ppm hyaluronic acid. The cloud-soft texture that doesn't feel like anything is there, except that the tightness doesn't come back. For the skin that asks to be closed carefully at the end of the routine. This is that. 🌙