Dermalogica
Dermalogica Circular Hydration Serum
Dermalogica Circular Hydration Serum
Dermalogica
dermalogica-circular-hydration-serum
Serum
10084788404517
Morning or Evening?
How often will you use this product?
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Highlights
WHAT IS IT?
Hydrating serum with multiple key ingredients
FEATURES
Long-lasting hydration, enhanced Hyaluronic Acid, Algae Extract-infused moisturizing matrix, Polyglutamic Acid from fermented Soy, plant-derived sugars and amino acids, postbiotic blend balancing skin microbiome
BEST FOR
dry
CHECKS
No lanolin, no SD alcohol, no mineral oil, no artificial colours, no fragrances
Who Is It For?
All Genders AdultWhat Does It Help With?
Dehydrated Skin Hydration Retention Skin Suppleness RadianceBudget
Premium ($76-$150)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Dermalogica Says
Product Description:
Kick-start skin’s hydration cycle: long-lasting serum immediately floods skin with hydration, replenishes from within, and helps prevent future hydration evaporation. Full-circle hydrating serum utilises an enhanced form of Hyaluronic Acid to penetrate skin’s surface for deep hydration and more supple, radiant skin over time. An Algae Extract-infused moisturising matrix delivers quick and long-lasting hydration. Polyglutamic Acid from fermented Soy replenishes skin’s hydration reserves from within. Plant-derived sugars and a blend of amino acids similar to those naturally present in the skin trap water on skin’s surface to help prevent future hydration evaporation. A postbiotic blend of Lactobacillus Ferment and Avena Extract helps to balance skin’s microbiome. Benefits: Immediately hydrates to quench dehydrated skin; Provides hydration that lasts throughout the day and beyond
About the Brand:
Ingredients Overview
Ingredients List
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, Chondrus Crispus Extract, Gigartina Stellata Extract, Macrocystis Pyrifera (Kelp) Extract, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Lithothamnion Calcareum Extract, Citrus Aurantium Dulcis (Orange) Oil, Cupressus Sempervirens 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
Key Ingredients
Hyaluronic Acid,Sodium Hyaluronate,Polyglutamic Acid,Lactobacillus Ferment,Avena Sativa Extract
Ingredients Details
Alanine
Common Name(s): L-alanine,2-aminopropanoic acid
CAS Number: 56-41-7
DESCRIPTION
What It Does: Provides nmf-type humectant moisture retention and skin conditioning.
Why It's Used: Simple, well-tolerated nmf amino acid humectant for skin conditioning formulations.
How It Works: Small methyl side chain contributes to protein hydrophobic core but as free amino acid provides direct humectant activity via amino and carboxyl groups. converted to pyruvate for cellular atp production via gluconeogenesis.
Typically Found In: Nmf moisturizers,skin conditioning products
TECHNICAL DETAILS
Primary Category: Active ingredient – amino acid
Secondary Functions: Nmf component,cellular energy
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–5%
SOURCING & ETHICS
Vegan Status: Yes – plant-derived or synthetic
Halal Status: Yes
Source Notes: Fermentation-derived or synthetic. natural skin component.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Non-irritating; endogenous skin molecule.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. natural skin nmf component. ewg score: 1.
Works Well With: Hyaluronic acid,ceramides,peptides,other amino acids
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Free alanine is among the most abundant amino acids in the stratum corneum nmf, where it contributes to the aqueous phase hydration that keeps the stratum corneum flexible and functional.
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12
Anhydroxylitol
Common Name(s): Anhydroxylitol,cosmetic active,functional ingredient
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function at recommended use concentration.
Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.
How It Works: Works through the mechanism of its molecular class — physicochemical or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed cosmetic literature.
Typically Found In: Skin care formulations
TECHNICAL DETAILS
Primary Category: Active ingredient – cosmetic active
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–10%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Well-tolerated by most skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Anhydroxylitol has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: Cosing database,anhydroxylitol technical literature
Primary Sources: 2026-03-12
Avena Sativa (oat) Kernel Extract
Common Name(s): Avena sativa (oat) kernel extract,botanical extract,phytochemical active
CAS Number: N/a
DESCRIPTION
What It Does: Provides antioxidant protection from reactive oxygen species, reduces inflammatory cytokine production in skin, and conditions skin surface through the plant's secondary metabolite complex.
Why It's Used: Chosen for its natural origin narrative, traditional use heritage, and multi-functional phytochemical profile that supports several concurrent skin care claims from one ingredient.
How It Works: Polyphenols, terpenoids, and alkaloids in the extract scavenge ros via hydrogen atom transfer, inhibit nf-kb or cox-2 inflammatory pathways, and interact with skin surface proteins for conditioning.
Typically Found In: Botanical skin care,natural products
TECHNICAL DETAILS
Primary Category: Active ingredient – antioxidant
Secondary Functions: Free radical scavenging,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–10%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Plant-derived extract or synthetic.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Non-irritating; well-tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Vitamin c,vitamin e,ferulic acid,spf,other antioxidants
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Plant secondary metabolites evolved as uv photoprotectants and antimicrobial agents — mechanisms that directly translate to cosmetic antioxidant and anti-inflammatory activity in human skin.
Last Verified: Cosing database,avena sativa (oat) kernel extract botanical review
Primary Sources: 2026-03-12
Betaine
Common Name(s): Trimethylglycine,tmg,natural betaine
CAS Number: 107-43-7
DESCRIPTION
What It Does: Provides osmoprotective humectant conditioning with anti-irritant and mild foam-boosting activity.
Why It's Used: Natural-origin multifunctional osmolyte from sugar beet providing hydration, anti-irritancy, and conditioning in virtually every cosmetic category.
How It Works: Quaternary ammonium betaine provides zwitterionic character for water binding via ionic hydration. osmoprotective function at 100–500mm as compatible solute protecting cells from osmotic stress. reduces surfactant irritation by competing with sls for protein binding sites. mild foam enhancement.
Typically Found In: Virtually all categories — moisturisers, shampoos, cleansers
TECHNICAL DETAILS
Primary Category: Functional ingredient – humectant
Secondary Functions: Tewl reduction,skin plumping
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–10%
SOURCING & ETHICS
Vegan Status: Yes – from beta vulgaris (sugar beet) molasses
Halal Status: Yes
Source Notes: Synthetic or naturally derived. excellent aqueous solubility.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Non-irritating; suitable for all skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Betaine's anti-irritant mechanism for surfactant systems involves competitive protein protection: betaine at high concentrations preferentially interacts with skin proteins, occupying binding sites that would otherwise be occupied by surfactant molecules causing protein denaturation. this competition reduces available protein binding for irritating surfactants, explaining betaine's well-documented ability to reduce sls irritation when co-formulated.
Last Verified: Cosing database,craig betaine osmoprotective review,cir safety assessment
Primary Sources: 2026-03-12