
Highlights
WHAT IS IT?
Hyaluronic Acid Serum Booster
FEATURES
Concentrated hydrating formula that plumps skin and reduces fine lines
BEST FOR
All skin types
CHECKS
Free of alcohol, silicon, sulfate, paraben, oil
Who Is It For?
All Ages All GendersWhat Does It Help With?
Dehydration Fine Lines WrinklesBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Paula's Choice Says
Product Description:
A concentrated hyaluronic acid serum that deeply hydrates skin and visibly plumps fine lines and wrinkles for a more youthful appearance
About the Brand:
Ingredients Overview
Ingredients List
water, sodium-hyaluronate, panthenol, ceramide-np, glycerin
Key Ingredients
hyaluronic acid, ceramides, panthenol
Ingredients Details
Ceramide Np
Common Name(s): Ceramide 3,n-stearoyl phytosphingosine,ceramide type iii
CAS Number: 100403-19-8
DESCRIPTION
What It Does: Provides the most abundant natural skin ceramide for precise stratum corneum barrier lipid replacement.
Why It's Used: The primary skin ceramide โ ceramide np's identity as the dominant stratum corneum ceramide fraction makes it the most physiologically relevant barrier lipid replacement for dry skin and eczema.
How It Works: N-stearoyl-phytosphingosine provides the exact molecular structure of the most abundant natural skin ceramide. integrates into stratum corneum lamellar lipid bilayers restoring barrier architecture. reduces tewl, improves corneometer moisture, restores barrier integrity. synergistic with cholesterol and fatty acids in barrier restoration.
Typically Found In: Barrier repair moisturisers,eczema care,dry skin treatment
TECHNICAL DETAILS
Primary Category: Active ingredient โ phytosphingosine ceramide
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.01%โ5%
SOURCING & ETHICS
Vegan Status: Conditional โ from wheat or phytosphingosine fermentation; plant-derived available
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ 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: 1โ2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Ceramide np's structural identity to natural skin ceramide 3 (the dominant sc ceramide at approximately 18% of total sc ceramide fraction) means it integrates into the stratum corneum's lamellar bilayer structure with perfect molecular recognition. no other moisturising ingredient can achieve this level of structural identity to the natural barrier component it replaces โ providing barrier repair rather than simply occlusive surface coating.
Last Verified: Cosing database,elias skin barrier ceramide review,cir safety assessment
Primary Sources: 2026-03-12
Glycerin
Common Name(s): Glycerol,glycerine,1,2,3-propanetriol
CAS Number: 56-81-5
DESCRIPTION
What It Does: Glycerin pulls water from the environment and deeper skin layers into the outer skin layer (epidermis), boosting moisture levels and keeping skin soft, smooth, and plump.
Why It's Used: It is used in virtually every moisturizer, serum, and cleanser because it is highly effective at hydrating skin, is well-tolerated by all skin types, and enhances the texture and spreadability of formulations.
How It Works: As a humectant, glycerin forms hydrogen bonds with water molecules, trapping them in the skin. it also reinforces the skin barrier by integrating into lipid structures between skin cells.
Typically Found In: Moisturizers,serums,cleansers,toners,sheet masks,sunscreens,body lotions,shampoos,conditioners
TECHNICAL DETAILS
Primary Category: Humectant
Secondary Functions: Skin barrier support,emollient,solvent
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ30% (typical: 3โ10%)
SOURCING & ETHICS
Vegan Status: Yes โ plant-derived (coconut, soy, palm) or synthetic
Halal Status: Yes โ when plant-derived or synthetic; verify source with supplier
Source Notes: Derived from plant oils via hydrolysis or saponification; synthetic versions also available. palm-derived glycerin carries sustainability concerns.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low; non-irritating at all standard concentrations
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Extremely rare allergic reactions; generally safe for all skin types including sensitive and baby skin
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Widely recognized as safe. ewg hazard score: 1. no significant concerns for irritation, sensitization, or toxicity at typical concentrations (up to 50%).
Works Well With: Hyaluronic acid,ceramides,niacinamide,panthenol,urea,peptides,retinol,ahas/bhas
Avoid Combining With: No known incompatibilities at standard concentrations
SCIENTIFIC NOTE
Glycerin is an endogenous skin component found naturally in the stratum corneum. aquaporin-3 channels in keratinocytes facilitate glycerin transport, making it integral to natural skin hydration pathways.
Last Verified: Cosing database,cir safety assessment,ewg skin deep,inci decoder
Primary Sources: 2026-03-12
Panthenol
Common Name(s): Provitamin b5,d-panthenol,dl-panthenol,d-pantothenyl alcohol,(r)-2,4-dihydroxy-n-(3-hydroxypropyl)-3,3-dimethylbutanamide
DESCRIPTION
What It Does: Panthenol deeply moisturizes skin and hair, soothes irritation, accelerates wound healing, strengthens the skin barrier, and improves hair elasticity and shine.
Why It's Used: It is used because it is exceptionally versatile, working in both skin and hair formulations. it is gentle enough for sensitive and post-procedure skin, and converts to the active vitamin b5 within the skin.
How It Works: Panthenol penetrates skin and hair, where it is oxidized to pantothenic acid (vitamin b5), a coenzyme a precursor essential to metabolism. in skin, it acts as a humectant and stimulates fibroblast proliferation. in hair, it coats the shaft, improving manageability.
Typically Found In: Moisturizers,serums,toners,after-sun products,wound healing products,shampoos,conditioners,hair masks,beard care
TECHNICAL DETAILS
Primary Category: Active ingredient โ provitamin b5
Secondary Functions: Anti-inflammatory,wound healing,hair conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%โ5% (typical: 1โ3%)
SOURCING & ETHICS
Vegan Status: Yes โ synthetically produced
Halal Status: Yes
Source Notes: Commercially synthesized. both d- and dl-forms used in cosmetics; d-panthenol is the biologically active isomer but dl-panthenol is less expensive and widely used.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low; one of the most soothing ingredients in cosmetics
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Extremely rare contact allergy; considered one of the safest cosmetic ingredients. suitable for all skin types.
Safe for Sensitive Skin: Yes โ ideal for sensitive, reactive, and post-procedure skin
SAFETY & COMPATIBILITY
Safety Profile: Exceptionally safe. ewg hazard score: 1. no significant concerns for irritation, sensitization, or systemic toxicity. safe during pregnancy.
Works Well With: Hyaluronic acid,ceramides,allantoin,niacinamide,centella asiatica,retinol (reduces irritation),glycerin
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Panthenol has demonstrated wound-healing properties in clinical studies, stimulating fibroblast proliferation and migration. its dual humectant and anti-inflammatory action makes it particularly effective in barrier-repair formulations.
Last Verified: Cosing database,cir safety assessment,ebner et al. (2002) skin pharmacology and applied skin physiology
Primary Sources: 2026-03-12
Sodium Hyaluronate
Common Name(s): Sodium salt of hyaluronic acid,naha
CAS Number: 9067-32-7
DESCRIPTION
What It Does: Provides hyaluronic acid hydration in the most formulation-stable and compatible form.
Why It's Used: The standard form of ha used in cosmetics โ more stable than free ha, better solubility, and equivalent skin hydration benefits.
How It Works: Sodium salt reduces the polyelectrolyte repulsion of ha chains, allowing better packing in formulations. on skin, sodium ions dissociate and the ha chain unfolds to its full water-binding conformation. provides full ha humectant and barrier benefits equivalent to free ha.
Typically Found In: Hydrating serums,toners,moisturizers,sheet masks,anti-aging products
TECHNICAL DETAILS
Primary Category: Active ingredient โ ha sodium salt
Secondary Functions: Equivalent ha hydration,superior stability
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ2%
SOURCING & ETHICS
Vegan Status: Yes โ bacterial fermentation
Halal Status: Yes
Source Notes: Synthetic or naturally derived. excellent aqueous solubility.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ 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
The sodium salt form of ha has approximately 10% better water solubility than free hyaluronic acid at equivalent molecular weight due to reduced chain-chain electrostatic repulsion from partial sodium counterion screening. this improved solubility enables higher concentration formulations without viscosity issues.
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12