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The INKEY List Hyaluronic Acid Serum ingredients: is it worth it?
A competent hydration serum—not an anti-aging breakthrough.

A competent hydration serum—not an anti-aging breakthrough.
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The efficacy score is 3.9/5: the formula earns credit from 2% multi-molecular hyaluronic acid, glycerin, propanediol, butylene glycol, and sodium lactate, with additional support from two signal peptides, but the peptide blend is positioned at the end and its concentration is undisclosed. There is no retinoid, vitamin C, niacinamide, ceramide system, or other high-evidence treatment active, and the formula provides humectant hydration rather than substantial barrier-repair or wrinkle treatment. The simple water-based formulation has no fragrance or denatured alcohol, supporting a strong 4.4/5 safety score; pH is not published, so acid-dependent claims cannot be independently assessed.
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DemythSkin rates The INKEY List Hyaluronic Acid Serum 3.9/5 for efficacy and 4.7/5 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 (8)⌄
FULL INGREDIENT LIST⌄
Water (Aqua/Eau), Propanediol, Sodium Hyaluronate, Glycerin, Butylene Glycol, Phenoxyethanol, Ammonium Acryloyldimethyltaurate/VP Copolymer, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Carbomer, Sodium Lactate, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1.
WHAT EACH INGREDIENT DOES (14)⌄
- Water (Aqua/Eau)
- Solvent and formula base
- Propanediol
- Humectant and solvent
- Sodium Hyaluronate
- Humectant and water binder
- Glycerin
- Humectant and skin conditioner
- Butylene Glycol
- Humectant and solvent
- Phenoxyethanol
- Preservative
- Ammonium Acryloyldimethyltaurate/VP Copolymer
- Thickener and emulsion stabilizer
- Leuconostoc/Radish Root Ferment Filtrate
- Preservative-supporting skin conditioner
- Hyaluronic Acid
- Humectant and film former
- Carbomer
- Gel thickener
- Sodium Lactate
- Humectant and buffering agent
- Polysorbate 20
- Solubilizer and emulsifier
- Palmitoyl Tetrapeptide-7
- Signal peptide and skin conditioner
- Palmitoyl Tripeptide-1
- Signal peptide and skin conditioner
EXTERNAL CITATIONS
Sodium Hyaluronate: Humectant hydration ingredient listed in the official formula.
Hyaluronic Acid: Multi-molecular hyaluronic acid is identified by the brand as the principal hydrating system.
Palmitoyl Tetrapeptide-7 and Palmitoyl Tripeptide-1: Matrixyl 3000 peptide components are listed at the end of the formula and marketed for plumping and smoothing.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
The INKEY List Hyaluronic Acid Serum: common questions
Is The INKEY List Hyaluronic Acid Serum worth it?
The INKEY List Hyaluronic Acid Serum scores 3.9 out of 5.0 for efficacy (Effective) and 4.7 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. A competent hydration serum—not an anti-aging breakthrough.
What are the key active ingredients in The INKEY List Hyaluronic Acid Serum?
The INKEY List Hyaluronic Acid Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does The INKEY List Hyaluronic Acid Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in The INKEY List Hyaluronic Acid Serum. It scores 4.7 out of 5.0 for safety.
How is The INKEY List Hyaluronic Acid 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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