Dermalogica Circular Hydration Face Serum — 1 fl oz Hyaluronic Acid, Long‑Lasting 10‑Hour Hydration

Dermalogica Circular Hydration Face Serum is a long‑lasting, hyaluronic acid serum that instantly hydrates, plumps, and helps maintain moisture for over 10 hours.

This advanced 1 fl oz face serum is formulated to jump‑start skin’s hydration cycle and improve moisture levels with regular use. Combining multiple humectants, moisture‑locking polymers, gentle exfoliation, and a postbiotic complex, it targets immediate thirst and supports stronger skin resilience over time. Independent clinical testing on 30 subjects showed increased hydration after two daily applications for 28 days, with measurable benefits lasting through a 10‑hour window.

How quickly will I see hydration after applying the serum?

You should notice skin feeling more plumped and comfortable within minutes of application, with clinically measured hydration increases at 20 minutes. The formula delivers both immediate and sustained moisture thanks to multiple hydrating ingredients that work at different layers of the skin.

• Fast‑acting humectants like hyaluronic acid draw water into the skin.
• Polyglutamic Acid and algae extract help retain moisture longer.
• Clinical measurements recorded benefits at 20 minutes, 2 hours, and 10 hours.

What key ingredients deliver long‑lasting hydration and how do they work?

The serum blends powerful humectants with moisture‑locking actives and supportive botanicals to hydrate, seal, and fortify. Each ingredient targets a specific step in the hydration cycle—attracting water, holding it within the skin, and supporting a healthy surface environment.

• Hyaluronic Acid: Enhanced molecular forms penetrate and plump multiple skin layers.
• Polyglutamic Acid & algae extract: Form a film that reduces moisture loss for extended wear.
• Postbiotic blend: Helps balance the skin’s microbiome to support barrier function.

Can this serum improve texture and tone in addition to hydration?

Yes—the formulation includes gentle exfoliation to refine surface texture and brighten dull areas without overstripping. Regular use can lead to a smoother, more even appearance as moisture and mild resurfacing work together.

• Lactic Acid: Softly exfoliates to remove dulling surface cells for improved radiance.
• Hydration boost: Plumping effect reduces the look of fine lines caused by dehydration.
• Balanced microbiome: Supports skin health that underpins better tone and texture.

How do I incorporate this serum into my daily skin routine?

Use it twice daily—morning and night—after cleansing and before your moisturizer or SPF. Because the serum hydrates and gently exfoliates, layer it under treatments or creams as needed to lock in benefits and create a smoother base for makeup.

• Apply to damp skin to maximize humectant performance.
• Follow with a moisturizer to seal hydration for all‑day wear.
• Use sunscreen during daytime routines to protect freshly exfoliated skin.

Who is this for? Dermalogica Circular Hydration Face Serum is suited for anyone seeking immediate and sustained moisture—especially those with dehydrated, combination, or environmentally stressed skin. It benefits users who want a lightweight, layerable serum that plumps, gently refines texture, and supports the skin’s natural moisture cycle without heavy oils. If you prefer clinical backing and a formulation that blends humectants, moisture‑hold agents, mild exfoliation, and microbiome support, this serum is a practical addition to daily care.

• Features: Deep Hydration Boost, Hyaluronic Acid Power, Moisture Replenishment, Brightening & Smoothing, Balanced Microbiome.
• Size: 1 fl oz (travel‑friendly bottle for daily use).
• Use: Twice daily after cleansing and before moisturizer or sunscreen.

Ingredients

Water/Aqua/Eau, Glycerin, PEG-8, Methylpropanediol, Propanediol, PPG-24-Glycereth-24, 1,2-Hexanediol, Xylitylglucoside, Butylene Glycol, Hydroxyethyl Urea, Panthenol, Hydroxyacetophenone, Lactic Acid, Hyaluronic Acid, Sodium Hyaluronate, Dunaliella Salina Extract, Avena Sativa (Oat) Kernel Extract, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Citrus Paradisi (Grapefruit) Peel Oil, Citrus Limon (Lemon) Peel Oil, Santalum Album (Sandalwood) Oil, Laminaria Digitata Extract, Jasminum Sambac (Jasmine) Flower Extract, Macrocystis Pyrifera (Kelp) Extract, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Lithothamnion Calcareum Extract, Citrus Aurantium Dulcis (Orange) Oil, Cupressus Sempervirens Leaf/Nut/Stem Oil, Cistus Ladaniferus Leaf/Stem Extract, Juniperus Virginiana Oil, Rosmarinus Officinalis (Rosemary) Flower/Leaf/Stem Extract, Tagetes Minuta Flower Oil, Rosa Damascena Flower, Hydrolyzed Rice Protein, Pentylene Glycol, Sodium PCA, Anhydroxylitol, Xylitol, Polyglutamic Acid, Lactobacillus Ferment, Lysine HCl, Betaine, Sclerotium Gum, Sodium Lactate, PCA, Glucose, Serine, Alanine, Glycine, Silanetriol, Pantolactone, Glutamic Acid, Threonine, Arginine, Proline, Xanthan Gum, Tetrasodium Glutamate Diacetate, Polysorbate 20, Sorbitan Isostearate, Citric Acid, Sodium Hydroxide, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Amylopectin, Hydroxyethylcellulose, Sodium Benzoate, Potassium Sorbate, Limonene, Linalool.