Skin science article
AHC Beauty Aqualuronic Serum Versus Good Molecules Hyaluronic Acid Serum
AHC Beauty Aqualuronic Serum Versus Good Molecules Hyaluronic Acid Serum This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Sodium Hyaluronate
AHC Beauty Aqualuronic Serum Versus Good Molecules Hyaluronic Acid Serum
This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Butylene Glycol
Glycerin
Dipropylene Glycol
Niacinamide
Codium Tomentosum Extract
Enteromorpha Compressa Extract
Undaria Pinnatifida Extract
Glycereth-25 PCA Isostearate
Ethylhexyl Palmitate
Artemisia Princeps Leaf Extract
Carbomer
Tromethamine
Xanthan Gum
Cetyl Ethylhexanoate
Hydroxyethylcellulose
Ethylhexylglycerin
Maris Aqua
Parfum
Adenosine
Polyglyceryl-10 Oleate
Biosaccharide Gum-1
Disodium EDTA
Trehalose
Sodium Hyaluronate
Hydrogenated Lecithin
Propanediol
Caprylic/Capric Triglyceride
Zinc PCA
Butyrospermum Parkii Butter
Myrothamnus Flabellifolia Leaf/Stem Extract
Ceramide NP
Cholesterol
Ceramide As
Ceramide Ns
Ascorbic Acid
Citric Acid
Ceramide AP
Eucalyptus Globulus Leaf Extract
Asiaticoside
Asiatic Acid
Phytosphingosine
Madecassic Acid
Magnesium PCA
Sodium Lactate
Copper Tripeptide-1
Serine
Sucrose
Urea
Glycine
Calcium Chloride
Potassium Hydroxide
Ornithine
Maris Sal
Alanine
Magnesium Chloride
Threonine
Histidine
Aspartic Acid
Butylene Glycol, Glycerin, Dipropylene Glycol, Niacinamide, Codium Tomentosum Extract, Enteromorpha Compressa Extract, Undaria Pinnatifida Extract, Glycereth-25 PCA Isostearate, Ethylhexyl Palmitate, Artemisia Princeps Leaf Extract, Carbomer, Tromethamine, Xanthan Gum, Cetyl Ethylhexanoate, Hydroxyethylcellulose, Ethylhexylglycerin, Maris Aqua, Parfum, Adenosine, Polyglyceryl-10 Oleate, Biosaccharide Gum-1, Disodium EDTA, Trehalose, Sodium Hyaluronate, Hydrogenated Lecithin, Propanediol, Caprylic/Capric Triglyceride, Zinc PCA, Butyrospermum Parkii Butter, Myrothamnus Flabellifolia Leaf/Stem Extract, Ceramide NP, Cholesterol, Ceramide As, Ceramide Ns, Ascorbic Acid, Citric Acid, Ceramide AP, Eucalyptus Globulus Leaf Extract, Asiaticoside, Asiatic Acid, Phytosphingosine, Madecassic Acid, Magnesium PCA, Sodium Lactate, Copper Tripeptide-1, Serine, Sucrose, Urea, Glycine, Calcium Chloride, Potassium Hydroxide, Ornithine, Maris Sal, Alanine, Magnesium Chloride, Threonine, Histidine, Aspartic Acid
Water
Hydroxyacetophenone
Sodium Citrate
Tocopherol
Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.