Dermalogica Circular Hydration Face Serum with Hyaluronic Acid, 2 fl oz — 10+ Hour Plumping & Lightweight Texture

Dermalogica Circular Hydration Face Serum is a fast-absorbing hyaluronic-acid serum that delivers immediate plumping and helps maintain skin hydration for 10+ hours while building longer-term moisture resilience.

This lightweight, full-circle serum combines high-performance humectants, moisture-locking actives and gentle exfoliation to kick-start skin’s hydration cycle. Formulated to penetrate and hold water in the skin, it uses multiple molecular weights of hyaluronic acid plus polyglutamic acid, algae extract and a postbiotic blend to support surface moisture, barrier balance and radiance over time.

How quickly will I see hydration and plumping effects?

Most users notice an immediate smoothing and plumping sensation as the serum draws moisture into the skin. Clinical testing on 30 subjects found measurable increases in hydration that lasted past ten hours after application, with cumulative improvement over daily use.

• Instant surface plump from low- and mid-weight hyaluronic acids
• Measured 10+ hour hydration retention after a single application
• Visible improvement builds with twice-daily use over 28 days
• Lightweight texture absorbs without tackiness

What actives are included and how do they support skin health?

The formula layers complementary ingredients: multiple hyaluronic acid sizes for depth of hydration, polyglutamic acid to form a moisture-locking film, algae extract for water-retention support, and lactic acid to gently renew surface skin. A postbiotic blend assists the skin microbiome for balanced surface defenses.

• Multi-weight hyaluronic acid for short- and long-term hydration
• Polyglutamic acid to enhance moisture retention and smoothness
• Algae extract to support natural hydration mechanisms
• Lactic acid for gentle exfoliation and brighter texture

How should I use this serum in my routine for best results?

Apply to clean, damp skin morning and night for optimal uptake — damp skin helps humectants draw and bind water more effectively. Follow with your moisturizer and SPF in the morning to seal hydration and protect the skin barrier.

• Use 2 pumps on damp skin after cleansing
• Layer moisturizer and sunscreen after morning application
• Pair with calming treatments if using stronger actives elsewhere
• Consistent twice-daily use improves hydration over weeks

Is this serum suitable for sensitive or acne-prone skin?

The formulation balances effective hydration with gentle renewal; lactic acid provides mild exfoliation rather than heavy chemical peeling. Because it focuses on barrier support and a postbiotic blend, many skin types tolerate it well, though patch testing is recommended for very reactive skin.

• Gentle lactic acid concentration for mild exfoliation
• Postbiotics help support a balanced skin microbiome
• Non-greasy finish suits combination and oily complexions
• Patch test if you have known ingredient sensitivities

Who is this for: Dermalogica Circular Hydration Face Serum is designed for anyone seeking an effective, everyday hydration booster — from dry or dehydrated skin that needs lasting moisture to combination and oily skin types wanting plumpness without heaviness. It’s also a solid choice for those who want to build skin resilience and smoother texture over time while keeping routines streamlined.

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.