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[ DemythSkin Verdict ]

Dr.Althea

Dr.ALTHEA Aqua Marine Watery Cream

Name: Dr.ALTHEA Aqua Marine Watery Cream
Brand: Dr.Althea

MoisturizerHydration

Efficacy

Strong

4.1 / 5.0

Safety

Safe

4.6 / 5.0

System Verdict

A very hydrating, hyaluronic-obsessed gel cream that overdelivers on moisture but is mostly marketing fluff for anti-aging and marine claims. The efficacy score is driven by a solid humectant and emollient base (water, glycerin, multiple glycols, hydrogenated polydecene, fatty alcohols) plus a genuinely robust "hyaluronic acid complex" spanning standard, hydrolyzed, crosslinked, and modified HA derivatives that can provide good superficial and short-term hydration and a nice film-forming effect; however, the numerous hyaluronate variants, nucleotide (Sodium DNA), marine extracts, and HA-bound retinoid/Vitamin C derivatives are likely present at low concentrations and function more as marketing than high-evidence treatment actives, so anti-aging and brightening effects are modest at best in this moisturizer format.

Active Ingredients Detected

A Tier: Good BasicsProven Results

GlycerinHyaluronic AcidHydrolyzed Hyaluronic AcidSodium HyaluronatePanthenolPolyglutamic AcidHydrolyzed Sodium HyaluronateHydroxypropyltrimonium HyaluronatePotassium HyaluronateSodium Hyaluronate CrosspolymerSodium Acetylated HyaluronateSodium Retinoyl HyaluronateZinc Hydrolyzed HyaluronateDimethylsilanol HyaluronateAscorbyl Propyl HyaluronateAscorbylpropyl Hydrolyzed Hyaluronat

B Tier: Supporting IngredientsPromising Ingredients

Hydrogenated PolydeceneC14-22 AlcoholsC12-20 Alkyl GlucosideDextrinGuaiazulene

C Tier: Marketing IdolsHype | Limited or Weak Data

Codium Fragile ExtractPalmaria Palmata ExtractChondrus Crispus ExtractSargassum Pallidum ExtractSodium DNAGardenia Florida Fruit ExtractAgave Tequilana Leaf ExtractCaulerpa Lentillifera Extract

What Each Ingredient Does

Water: Primary solvent
1,2-Hexanediol: Humectant and preservative booster
Propanediol: Solvent and humectant
Water: Solvent (duplicate entry)
Glycerin: Primary humectant for hydration
Hydrogenated Polydecene: Light emollient and texture enhancer
C14-22 Alcohols: Fatty alcohols for structure and emollience
C12-20 Alkyl Glucoside: Emulsifier and stabilizer
Caprylic/Capric Triglyceride: Emollient and skin-conditioning agent
Codium Fragile Extract: Marine extract, potential soothing
Palmaria Palmata Extract: Algae extract, marketing antioxidant
Chondrus Crispus Extract: Algae extract, film-forming moisturizer
Sargassum Pallidum Extract: Marine extract, marketing antioxidant
Butylene Glycol: Humectant and solvent
Hyaluronic Acid: High molecular weight humectant
Hydrolyzed Hyaluronic Acid: Lower molecular weight humectant
Sodium Hyaluronate: Standard hyaluronic acid salt humectant
Panthenol: Humectant and soothing agent
Vinyl Dimethicone: Silicone for slip and occlusion
Cetyl Alcohol: Fatty alcohol emollient and thickener
Carbomer: Gel thickener and stabilizer
Tromethamine: pH adjuster
Sodium DNA: Marketing nucleotide humectant
Hydrogenated Lecithin: Emulsifier and delivery aid

Full Ingredient List (INCI)

Water, 1,2-Hexanediol, Propanediol, Water, Glycerin, Hydrogenated Polydecene, C14-22 Alcohols, C12-20 Alkyl Glucoside, Caprylic/Capric Triglyceride, Codium Fragile Extract, Palmaria Palmata Extract, Chondrus Crispus Extract, Sargassum Pallidum Extract, Butylene Glycol, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Panthenol, Vinyl Dimethicone, Cetyl Alcohol, Carbomer, Tromethamine, Sodium DNA, Hydrogenated Lecithin, Dextrin, Gardenia Florida Fruit Extract, Polyglutamic Acid, Hydrolyzed Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Potassium Hyaluronate, Sodium Hyaluronate Crosspolymer, Pentylene Glycol, Sodium Acetylated Hyaluronate, Guaiazulene, Agave Tequilana Leaf Extract, Sodium Retinoyl Hyaluronate, Zinc Hydrolyzed Hyaluronate, Dimethylsilanol Hyaluronate, Sodium Benzoate, Ascorbyl Propyl Hyaluronate, Ascorbylpropyl Hydrolyzed Hyaluronat, Caulerpa Lentillifera Extract, Ethylhexylglycerin, Disodium EDTA

Frequently Asked

Is Dr.ALTHEA Aqua Marine Watery Cream worth it?

Dr.ALTHEA Aqua Marine Watery Cream scores 4.1 out of 5.0 for efficacy (Strong) and 4.6 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. A very hydrating, hyaluronic-obsessed gel cream that overdelivers on moisture but is mostly marketing fluff for anti-aging and marine claims. The efficacy score is driven by a solid humectant and emollient base (water, g

What are the key active ingredients in Dr.ALTHEA Aqua Marine Watery Cream?

Dr.ALTHEA Aqua Marine Watery Cream contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does Dr.ALTHEA Aqua Marine Watery Cream contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in Dr.ALTHEA Aqua Marine Watery Cream. It scores 4.6 out of 5.0 for safety.

How is Dr.ALTHEA Aqua Marine Watery Cream scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-28. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.