All scans / Serums / Dr. Althea Aqua Marine Deep Serum
Dr. Althea Aqua Marine Deep Serum ingredients: is it worth it?
A competent hydration serum, but the headline hype is doing more work than the formula.

A competent hydration serum, but the headline hype is doing more work than the formula.
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The efficacy score is driven mainly by a solid humectant base (glycerin, propanediol, sodium hyaluronate, crosspolymer hyaluronate, hydrolyzed hyaluronic acid) plus supportive soothing/barrier ingredients like panthenol, centella, and niacinamide; however, niacinamide is not especially high enough to promise strong brightening, and several botanical/ferment/seaweed ingredients are more supportive than truly transformative. There is no obvious pH-sensitive treatment active here, so this is best judged as a well-built hydration and soothing serum rather than a high-impact treatment formula.
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DemythSkin rates Dr. Althea Aqua Marine Deep Serum 4.2/5 for efficacy and 4.8/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (10)⌄
FULL INGREDIENT LIST⌄
Water, 1,2-Hexanediol, Water, Glycerin, Ethylhexylglycerin, Niacinamide, Raffinose, Panthenol, Propanediol, Xanthan Gum, Lactococcus Ferment Lysate, Fructooligosaccharides, Centella Asiatica Extract, Cyperus Rotundus Root Extract, Sodium Chloride, Sodium Hyaluronate, Adenosine, Tromethamine, Carbomer, Disodium Edta, Sodium Dna, Agave Tequilana Leaf Extract, Maltodextrin, Hydrolyzed Gardenia Florida Extract, Hizikia Fusiforme Extract, Sargassum Fulvellum Extract, Laminaria Japonica Extract, Butylene Glycol, Caulerpa Lentillifera Extract, Guaiazulene, Sodium Hyaluronate Crosspolymer, Dimethyl Isosorbide, Oleyl Alcohol, Hydrolyzed Hyaluronic Acid
WHAT EACH INGREDIENT DOES (24)⌄
- Water
- solvent base
- 1,2-Hexanediol
- humectant preservative
- Water
- solvent base
- Glycerin
- humectant
- Ethylhexylglycerin
- preservative booster
- Niacinamide
- barrier-supporting brightener
- Raffinose
- humectant sugar
- Panthenol
- soothing humectant
- Propanediol
- solvent humectant
- Xanthan Gum
- thickener stabilizer
- Lactococcus Ferment Lysate
- ferment extract
- Fructooligosaccharides
- prebiotic humectant
- Centella Asiatica Extract
- soothing botanical extract
- Cyperus Rotundus Root Extract
- botanical extract
- Sodium Chloride
- viscosity modifier
- Sodium Hyaluronate
- humectant polymer
- Adenosine
- skin conditioning active
- Tromethamine
- pH adjuster
- Carbomer
- gelling agent
- Disodium Edta
- chelating agent
- Sodium Dna
- marketing-oriented conditioner
- Agave Tequilana Leaf Extract
- botanical extract
- Maltodextrin
- carrier binder
- Hydrolyzed Gardenia Florida Extract
- botanical extract
EXTERNAL CITATIONS
Glycerin: Well-established humectant for increasing stratum corneum water content.
Niacinamide: Supported for barrier improvement and modest brightening, depending on concentration.
Panthenol: Humectant/soothing ingredient commonly used to support barrier comfort.
Sodium Hyaluronate: Humectant that helps bind water at the skin surface.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
A cheaper serum with a similar formula
A partial ingredient match (31%), not a close dupe.

Dr. Althea Aqua Marine Deep Serum: common questions
Is Dr. Althea Aqua Marine Deep Serum worth it?
Dr. Althea Aqua Marine Deep Serum scores 4.2 out of 5.0 for efficacy (Effective) and 4.8 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. A competent hydration serum, but the headline hype is doing more work than the formula.
What are the key active ingredients in Dr. Althea Aqua Marine Deep Serum?
Dr. Althea Aqua Marine Deep Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does Dr. Althea Aqua Marine Deep Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Dr. Althea Aqua Marine Deep Serum. It scores 4.8 out of 5.0 for safety.
How is Dr. Althea Aqua Marine Deep Serum scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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