ROUND LAB Birch Juice Moisturizing Ampoule 1.69 Fl Oz

ROUND LAB Birch Juice Moisturizing Ampoule is a lightweight Korean ampoule that absorbs in about 7 seconds to deliver multi-layer hydration and up to 72 hours of moisture.

This ampoule combines 10 forms of hyaluronic acid, Aquaxyl, and birch sap in a watery, fast-absorbing formula designed for layering and sensitive skin. Clinically tested for sensitivity and awarded Derma Test certification, it delivers four-level hydration—surface moisture plus three deeper layers—while maintaining a featherlight feel that won’t clog pores. The texture and actives make it simple to add to morning or evening routines as a hydration booster, serum substitute, or layering step.

How quickly will I feel hydration after applying the ampoule?

Expect immediate skin pick-me-up: the formula sinks in rapidly so skin feels hydrated within seconds. Clinical testing reports absorption in roughly seven seconds, helping products layered afterward perform better without a heavy residue.

• 7-second absorption for rapid skin comfort
• Watery texture suitable for multiple layers
• Non-greasy finish that supports makeup application

What makes its moisture last up to 72 hours?

Longer-lasting hydration comes from a combination of ten hyaluronic acid types that hold water at different skin depths and Aquaxyl, which helps the skin retain moisture. Together they support a sustained barrier effect that reduces transepidermal water loss for extended plumping and smoothness.

• 10 hyaluronic acid variants for depth and surface hydration
• Aquaxyl to improve water retention and barrier function
• Clinically validated 72-hour moisture performance

Is this ampoule safe for sensitive or reactive skin?

The product completed sensitivity testing and earned certification from Germany’s Derma Test, indicating it's formulated to minimize irritation risks. Its fragrance-light, watery base and gentle actives make it suitable as a soothing hydration step for reactive complexions.

• Derma Test-certified for skin compatibility
• Clinically evaluated in sensitivity tests
• Light, non-irritating texture made for layering

How should I use it in my daily skincare routine?

Apply after cleansing and toning, using 2–4 drops to damp skin, then press gently until absorbed; follow with your moisturizer or sunscreen. Because it layers easily, you can repeat the ampoule across your routine for extra hydration or mix it with lightweight creams for customized moisture.

• Use on damp skin to boost absorption
• Layer under creams, oils, or makeup without pilling
• Suitable for both AM and PM routines as a hydration booster

Who is this for: Anyone seeking fast-absorbing, long-lasting hydration—especially those with normal to dry or sensitive skin who want a lightweight, clinically tested ampoule. It’s ideal for people who prefer layering watery textures, need reliable barrier support, or want a hydrating step that won’t interfere with makeup. If you’re looking to increase skin moisture at multiple depths without heavy oils or fragrances, this ampoule is designed for you.