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   Round Lab Birch Juice Moisturizing Serum Review: The Best Hydrating Serum for Glass Skin

  • By Vickie Le

Published: Wednesday, November 12, 2025

This ampoule's capacity to retain moisture for up to 72 hours is one of its best qualities. It contains ten different forms of hyaluronic acid to keep your skin moisturized, and its lightweight, water-like texture absorbed in just seven seconds. Ideal for people with dry skin!

Birch Tree Sap (Birch Juice), a K-beauty mainstay that leaves skin smooth, moisturized, and radiant, is an important component of this ampoule — just like in the Round Lab Birch Juice Moisturizing Serum, one of the best moisturizing serums from the brand. Perfect for achieving that Korean glass-skin effect! Additionally, this ampoule contains amino acids, enzymes, and antioxidants that support healthy skin and reduce inflammation. Glyceryl glucoside also aids in moisturizing and relieving irritation, tightness, and dryness.

 

How to use: Proceed with the toner and essence phase. Apply a small amount of the Round Lab Birch Juice Serum to your face. To absorb, gently pat.


My complexion has improved in a matter of weeks, and I am quite pleased with the outcome. My confidence has increased as a result of my skin becoming smoother and more radiant.

Applying and dispensing the product is made simple by the ampoule's tall, elegant bottle with a dropper applicator. Before using the cream on my skin, I had some doubts about the 7-second absorption promise. When applied, it absorbs easily into the skin and has a texture that is quite similar to water. Additionally, I've discovered that the ampoule is ideal for layering! Particularly after I apply my Round Lab Birch Juice Moisturizing Sun Cream 50ml, there is no stickiness or irritation.

In addition to feeling fantastic, the ampoule has enhanced the texture of my skin. The appearance of dry patches and creases under my makeup has decreased since I started using it every day, both in the morning and at night. I've tried a lot of moisturizing serums, and I would absolutely buy this one again!

The Birch Juice Moisturizing Serum truly lives up to the brand's reputation and is a great addition to Round Lab's Birch Line. This incredibly hydrating and gentle formula complements the Round Lab Birch Juice Moisturizing Sun Cream SPF50+ perfectly. If you’re searching for a best moisturizing serum that’s fragrance-free, hypoallergenic, and non-irritating, Round Lab Birch Juice Moisturizing Serum is the top pick I wholeheartedly recommend!

Frequently Asked Questions

1. What is Round Lab Birch Juice Moisturizing Serum used for?

The Round Lab Birch Juice Moisturizing Serum deeply hydrates and nourishes the skin using birch tree sap and hyaluronic acid. It helps restore the skin’s moisture barrier, leaving your complexion smooth, plump, and glowing.

2. Is Round Lab Birch Juice Moisturizing Serum suitable for sensitive skin

Yes. This birch juice moisturizing serum is fragrance-free, hypoallergenic, and non-irritating. It contains gentle ingredients like birch sap and amino acids that calm redness and strengthen sensitive skin.

3. How do I use Round Lab Birch Juice Moisturizing Serum in my skincare routine?

After cleansing and toning, apply a few drops of Round Lab Birch Juice Serum evenly to your face and neck. Gently pat until absorbed, then follow with a moisturizer or the Round Lab Birch Juice Moisturizing Sun Cream 50ml for complete hydration and sun protection.

4. What makes Round Lab Birch Juice Moisturizing Serum different from other hydrating serums?

Unlike many other serums, this best moisturizing serum features ten types of hyaluronic acid and pure birch sap, which retain moisture for up to 72 hours. Its lightweight, fast-absorbing texture makes it perfect for layering under sunscreen or makeup.

5. Can I use Round Lab Birch Juice Moisturizing Serum every day?

Absolutely. The Round Lab Birch Juice Moisturizing Serum is gentle enough for daily use, both morning and night. Consistent application improves hydration, reduces dry patches, and enhances overall skin radiance.

6. Is Round Lab Birch Juice Moisturizing Serum good for oily or acne-prone skin?

Yes. Despite its high moisture content, this Round Lab Birch Juice Serum has a light, non-sticky texture that won’t clog pores. It balances oil and water levels in the skin, making it ideal for all skin types — including oily or combination skin.

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Gentle and safe for sensitive skin

Boosts your skin’s natural regeneration

Packed with skin-loving polynucleotides and nutrients

Enhances skin strength and promotes firmness

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