Dermalogica Circular Hydration Face Serum — 0.34 fl oz, Hyaluronic Acid + Polyglutamic Acid for Long-Lasting Plumping Moisture

Dermalogica Circular Hydration Face Serum is a lightweight, fast-absorbing serum that instantly floods skin with moisture and helps sustain hydration for hours.

This concentrated 0.34 fl oz serum is formulated to jump-start skin’s hydration cycle: it delivers immediate plumping hydration, replenishes moisture stores, and supports the skin barrier to reduce future water loss. The formula combines multiple humectants, moisture-binding polymers, gentle exfoliation, algae-derived ingredients and a postbiotic blend to hydrate, refine texture, and promote a more radiant appearance without heavy residue.

How quickly will I notice hydration after applying the serum?

You can expect a visible smoothing and plumping effect within minutes as the serum’s low-viscosity formula absorbs deeply. Hyaluronic acid and polyglutamic acid pull and hold water in the skin while algae extract contributes to sustained moisture retention.

• Instant skin-plumping visible soon after application
• Ultra-light texture absorbs without tackiness
• Designed to provide hydration that lasts 10+ hours

What active ingredients make this effective for long-lasting moisture?

The serum blends multiple water-attracting and water-locking actives: enhanced hyaluronic acid for deep hydration, polyglutamic acid as a moisture-sealing polymer, and algae extract to support natural water balance. A mild lactic acid provides gentle exfoliation to improve surface smoothness and radiance, while a postbiotic complex helps maintain a balanced skin microbiome.

• Hyaluronic acid — penetrative hydration
• Polyglutamic acid — reinforces moisture retention
• Algae extract and postbiotics — support moisture and barrier health
• Lactic acid — light exfoliation for a brighter look

How should I use the serum in my daily routine?

Apply after cleansing and any water-based toner or treatment, before your moisturizer and sunscreen. Use a pea-sized amount, gently pressing the serum into face and neck; it layers well under creams and oils and suits both morning and evening routines.

• Use on clean, dry skin for best absorption
• Layer under moisturizer and sunscreen in the morning
• Apply nightly for ongoing hydration support

Will this serum suit sensitive or combination skin?

The formula is lightweight and non-greasy, designed to support the skin barrier and balance microbiome without heavy occlusives. Lactic acid is included at a gentle level to smooth texture; if your skin is highly reactive, perform a patch test first.

• Lightweight feel suits combination and oily-prone skin
• Hydrating without leaving residue for dry skin layering
• Gentle exfoliant; test if extremely sensitive

Who is this for: Dermalogica Circular Hydration Face Serum is aimed at anyone seeking a reliable, fast-absorbing hydration booster—ideal for dehydrated, combination, or aging skin that benefits from long-lasting moisture, gentle surface refinement, and support for a resilient skin barrier. It's practical for daily use under moisturizer and sunscreen, and for travelers or commuters who want compact, potent hydration on the go.

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.