ANUA Birch 70 Moisture Boosting Serum

ANUA Birch 70 Moisture Boosting Serum

Lightweight, deeply hydrating, and instantly absorbed — the ANUA Birch 70 Moisture Boosting Serum from ANUA is a silk-water textured serum formulated with 70% Japanese White Birch Water as the hydration base, plus 8 forms of Hyaluronic Acid, Panthenol, Trehalose, ABC Complex, and a soothing botanical complex. Its slightly acidic pH mirrors the skin's natural acid mantle to protect the moisture barrier — so skin stays hydrated, calm, and balanced rather than just temporarily plumped.

4.9 stars from 5,800+ customer reviews. Fragrance-free, paraben-free, fungal-acne safe — vegan and cruelty-free.

Size: 30ml / 1.01 fl. oz.

Key benefits

• Replenishes moisture and prevents moisture loss — 70% Japanese White Birch Water + 8 HA forms + Trehalose
• Slightly acidic formula (pH 5.5) supports the skin's natural barrier and acid mantle
• Calms redness and soothes sensitive skin — ABC Complex + Licorice
• Silk-water texture — zero stickiness, instant absorption, no white cast
• Layers beautifully — 2–3 applications for intensive hydration; wears under makeup
• Fragrance-free, paraben-free, fungal-acne safe — vegan and cruelty-free

How to use

After cleansing and toning, apply 2–3 drops of the ANUA Birch 70 Moisture Boosting Serum and gently press and pat into the skin — press rather than rub for best absorption. Layer 2–3 applications in quick succession on very dry or dehydrated days. Follows beautifully after the ANUA Birch Moisture Boosting Pad as the next step in the birch hydration system. Follow with moisturizer. Suitable for morning and evening use.

Why we love it

The best hydrating serums don't just add moisture — they help skin hold onto it. The ANUA Birch 70 Moisture Boosting Serum earns its 4.9-star rating by doing exactly that, with a formula that starts from a smarter foundation than most. Instead of conventional purified water, 70% of this serum is Japanese White Birch Water — a naturally mineral-rich, amino acid-containing sap that hydrates in a way plain water simply can't replicate. That foundation alone sets the formula apart. On top of it, 8 forms of Hyaluronic Acid layer moisture from the surface down, Trehalose locks that moisture in even in dry conditions, and Panthenol strengthens the barrier so it doesn't escape. Licorice and the ABC Complex (Allantoin + Betaine + Cucumber) keep sensitive and reactive skin calm throughout. The silk-water texture is genuinely one of the most pleasant serum experiences in Korean skincare — it absorbs instantly with zero stickiness and sits beautifully under makeup. At BestSkincareUSA.com, the ANUA Birch 70 Moisture Boosting Serum is our top hydrating serum recommendation from ANUA for any Korean skincare routine that prioritizes lightweight, barrier-supporting moisture.

Key ingredients

• 70% Japanese White Birch Water — The entire formula base is birch sap, not plain water. Naturally rich in minerals, amino acids, and organic compounds, it hydrates and balances the skin in a way that water-based formulas can't match — and gives every other ingredient in the formula a biocompatible, skin-friendly environment to work in.
• 8 forms of Hyaluronic Acid — Eight different HA forms at different molecular sizes, each reaching a different depth in the skin — from an instant surface plump to deeper, longer-lasting moisture that persists through the day.
• Trehalose + Panthenol — Trehalose is an exceptionally stable humectant that locks in moisture even in dry, low-humidity conditions where Hyaluronic Acid alone can fall short. Panthenol (Provitamin B5) strengthens the skin barrier and soothes any discomfort.
• ABC Complex (Allantoin + Betaine + Cucumber Fruit Extract) — Three calming, balancing ingredients that soothe redness, reduce irritation, and help keep skin comfortable throughout the day.
• Licorice (Dipotassium Glycyrrhizate) + Malachite Extract — Licorice calms inflammation and redness reliably for sensitized skin; Malachite Extract provides mineral antioxidant protection against environmental stress.
• Biosaccharide Gum-1 + Gluconolactone (PHA) — Biosaccharide Gum-1 forms a breathable, moisture-retaining film that supports the skin microbiome. PHA provides the gentlest exfoliation available — smoothing texture and improving absorption without irritation.

Pro tips and pairings

Press rather than rub the ANUA Birch 70 Moisture Boosting Serum into the skin — the silk-water texture absorbs best through warm-palm pressing. On very dry days, apply 2–3 thin layers in quick succession for intensive hydration reserves that last throughout the day. For the complete ANUA Birch 70 hydration system: start with the ANUA Birch Moisture Boosting Pad, follow with 2–3 layers of this serum, then seal with the ANUA Birch 70 Moisture Boosting Cream — three steps, all 70% birch water, for the deepest and most sustained barrier hydration the line offers. Explore more from ANUA: Shop ANUA

About ANUA

ANUA is a South Korean skincare brand built on the belief that healthy skin comes from supporting the skin's natural balance through pure, organic ingredients, minimal irritation, and formulas that work with the skin rather than against it. Every ANUA formula prioritizes ingredient efficacy, environmental sustainability, and skin compatibility. 100% made in Korea.