One Thing

Hyaluronic Acid Complex, 5 fl oz (150 ml)

4.6 · 494 reviews
1,702 ₽

Hyaluronic Acid Complex Vegan Deep Hydration with Hyaluronic Acid : This essence features low and high molecular Hyaluronic Acids, ensuring deep penetration into the skin while balancing moisture levels. Hydrolyzed Sodium Hyaluronate at 9,500 ppm and Sodium Hyaluronate at 500 ppm provide an immediate moisturizing effect.

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Hyaluronic Acid Complex Vegan Deep Hydration with Hyaluronic Acid : This essence features low and high molecular Hyaluronic Acids, ensuring deep penetration into the skin while balancing moisture levels. Hydrolyzed Sodium Hyaluronate at 9,500 ppm and Sodium Hyaluronate at 500 ppm provide an immediate moisturizing effect.

Customer reviews

5.0
verified purchase
Great toner/moisturizer

I really like that it has only a few ingredients. It feels nice on the skin and absorbs quickly. My skin feels smooth afterwards and over time it has improved in elasticity and texture. Since I use supplements too, I cannot attribute everything to this One Thing only, but I believe it to be a contributor. Since not much needed at a time a bottle last quite a long time.

10/25/2025
5.0
verified purchase

Love this! It comes in a big bottle and lasts for a very long time. I use it on my face and hair as well (while it’s wet) and it makes it super shiny and hydrated. Will definitely buy more of this but unfortunately it’s always out of stock. Will be trying other serums from this brand and hopefully I will like them just as much. Thank you iherb for all the amazing k beauty brands that are available! Truly amazing especially that it is hard to find them online at a good price! They’re always more expensive

9/30/2023
5.0
verified purchase
Great Hydration Without Feeling Heavy

I really like this Hyaluronic Acid Complex. The quality is excellent, and it is easy to use as part of my daily skincare routine. It has a lightweight texture, absorbs well, and leaves my skin feeling soft, smooth, and hydrated without being greasy. The size is also great for the price, and the packaging is simple and practical. I’ve been enjoying it and would definitely recommend it for anyone looking for a good hydrating product. The flavor is not applicable since this is a skincare product.

8/14/2026
5.0
verified purchase
Good quality and size

I have used hylauronic acid serums from different companies and I have to say this is one of my favorite. It has that thick liquid consistency that you can feel on you fingers which speaks for the quality of the product, and also the size is very good for the price!

6/15/2026
5.0
verified purchase
Lightweight and effective hydration booster

Lightweight and effective hydration booster This Hyaluronic Acid Complex is a simple yet effective hydration booster. The texture is very lightweight, absorbs quickly, and layers well with other skincare products without pilling or feeling sticky. It helps keep the skin plump and hydrated throughout the day, especially when applied on damp skin and sealed with a moisturizer. I also appreciate the generous size, which makes it great for daily use on both face and body. Overall, a high-quality and versatile hyaluronic acid product that delivers reliable hydration. I would definitely repurchase.

2/19/2026
5.0
verified purchase
convenient product for good price

Convenient product if you want to incorporate it additionally to your favourite cream. Good price, good packaging, could get all of the product out. medium strength. My skin does not "flare" from it as from some of the product with hylauronic acid and also it let's me to control the amount I use. I am keep ordering it.

1/27/2026
4.0
verified purchase
Simple and hydrating

Very lightweight, absorbs fast, works well under any cream. Gives a basic hydration boost without feeling sticky. It’s not a miracle product, but for the price and size it does the job. Good everyday humectant.

11/28/2025
5.0
verified purchase
Refreshing Hydration with One Thing Hyaluronic Acid Complex

I’ve been using the One Thing Hyaluronic Acid Complex for a few weeks, and I absolutely love how plump and moisturized my skin feels. It absorbs quickly without any greasy residue and leaves my face feeling refreshed all day. Perfect for anyone looking to boost hydration and maintain a healthy glow!

11/25/2025
5.0
verified purchase
Hyaluronic Acid

I love this product and will definitely order it again. Great for sensitive skin. It really moisturizes the skin. I use it every night with Niacimide and during the only Niacimide with sunscreen. It is a big bottle so real value for money.

10/27/2025
3.0
verified purchase

I've been using the One Thing Hyaluronic Acid Complex for a while now, and it's become a staple in my skincare routine. The lightweight, watery texture absorbs quickly, leaving my skin feeling plump and deeply hydrated without any sticky residue. As someone with sensitive skin, I appreciate that it contains minimal ingredients, reducing the risk of irritation. It's vegan, fragrance-free, and suitable for all skin types, including those prone to fungal acne. I use it after cleansing and before applying moisturizer, and I've noticed a visible improvement in my skin's texture and overall hydration. It's also versatile—I've used it as a hydrating mist and even as a base for a DIY sheet mask. For the price and quality, it's a great addition to any skincare regimen.

10/21/2025