
Highlights
WHAT IS IT?
Hyaluronic Serum with proprietary blend of low and high molecular weight hyaluronic acid molecules
FEATURES
Instant hydration, Long-term hydration, Plumping effect, Calms skin with anti-aging Purslane, Reduces visible signs of irritation
BEST FOR
sensitive
CHECKS
Who Is It For?
Adults All GendersWhat Does It Help With?
Hydration Wrinkle Reduction Skin Firmness Irritation ReductionBudget
Professional (over $150)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Dr. Barbara Sturm Says
Product Description:
The HYALURONIC SERUM is the most fundamental creation in Dr. Barbara Sturm's skincare line. Packed with an optimal concentration of low and high weighted Hyaluronic Molecules, it provides instant hydration at the surface and deeper skin layers. The low molecular weight Hyaluronic Acid penetrates deeper skin layers, leaving skin feeling firmer, refreshed and visibly more radiant for the long term. High weight Hyaluronic Molecules provide immediate intensive hydration to the surface layers of the skin. When used as part of your daily skincare routine, the HYALURONIC SERUM improves the skin matrix and acts as a super-hydrator, improving skin health and reducing the formation of wrinkles caused by dehydration. It's also the perfect travel companion after exposure to the sun and the elements, as Purslane, an anti-aging powerhouse, reduces the appearance of the visible signs of irritation. Benefits: Packed with a concentrated balance of low and high molecularly weighted Hyaluronic Acid, Provides instant hydration, Boosts moisture to help reduce the formation of wrinkles caused by dehydration, Active anti-aging ingredient Purslane calms the skin and reduces the visible signs of irritation.
About the Brand:
Ingredients Overview
Ingredients List
aqua-water-eau,butylene-glycol,lactobacillus-portulaca-oleracea-ferment-extract,sodium-hyaluronate,leuconostoc-radish-root-ferment-filtrate,phenoxyethanol,ethylhexylglycerin,potassium-sorbate
Key Ingredients
Custom-blended Hyaluronic Acid,Purslane
Ingredients Details
Ethylhexylglycerin
Common Name(s): Octylglycerin,2-ethylhexyl glycerol ether,sensiva sc 10
CAS Number: 70445-33-9
DESCRIPTION
What It Does: Provides antimicrobial skin conditioning with deodorant activity and preservation system enhancement.
Why It's Used: Multifunctional clean beauty preservation active โ ethylhexylglycerin provides antimicrobial, deodorant, and skin conditioning in a single ingredient accepted in most natural cosmetic certification schemes.
How It Works: Glycerol ether provides antimicrobial via bacterial membrane phospholipid disruption. deodorant activity via reduction of underarm lipase enzyme activity (similar mechanism to triethyl citrate). skin conditioning from glycerol humectant component. synergistic with phenoxyethanol and diols.
Typically Found In: Natural preservation systems,deodorants,skin conditioning products
TECHNICAL DETAILS
Primary Category: Functional ingredient โ antimicrobial glycerol ether
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ0.5%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
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
Ethylhexylglycerin's deodorant mechanism is pharmacologically identical to triethyl citrate: both inhibit skin surface microbial lipase enzymes that convert odourless triglycerides to odorous free fatty acids. the glycerol ether structure of ethylhexylglycerin, combined with the 2-ethylhexyl chain, provides lipase inhibition similar to ester-based lipase inhibitors from a different chemical class.
Last Verified: Cosing database,schรผlke sensiva sc 10 technical data,cir safety assessment
Primary Sources: 2026-03-12
Phenoxyethanol
Common Name(s): 2-phenoxyethanol,rose ether,ethylene glycol monophenyl ether
CAS Number: 122-99-6
DESCRIPTION
What It Does: Prevents microbial contamination and spoilage in cosmetic formulations.
Why It's Used: The benchmark cosmetic preservative โ eu-permitted up to 1%, effective against virtually all cosmetically relevant microorganisms, and excellent tolerability.
How It Works: Phenol ring provides broad antimicrobial activity via disruption of bacterial and fungal cell membranes and inhibition of enzymatic activity. effective against gram-positive and gram-negative bacteria, yeasts (candida), and molds (aspergillus). activity ph range: 3-9.
Typically Found In: All cosmetic formulations as primary preservative
TECHNICAL DETAILS
Primary Category: Functional ingredient โ broad-spectrum preservative
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ1% (eu max 1%)
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
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: Eu cosmetics regulation max 1%. sccs assessed as safe at โค1%. avoid use around eyes in baby products per some country regulations. ewg score: 4.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Phenoxyethanol's widespread adoption as the primary cosmetic preservative followed the phaseout of parabens from many formulations in the 2000s-2010s. despite having a comparable or better safety profile to parabens, it is often cited in 'free-from' formulations โ a consumer perception issue rather than a scientific safety concern.
Last Verified: Cosing database,sccs opinion on phenoxyethanol,cir safety assessment
Primary Sources: 2026-03-12