
Highlights
WHAT IS IT?
Triple Weight Hyaluronic Acid Serum
FEATURES
Low and medium weight Hyaluronan molecules for deep hydration, High weight Hyaluronan for surface hydration
BEST FOR
normal
CHECKS
Clean beauty formulation
Who Is It For?
All AgesWhat Does It Help With?
Hydration Firmness Radiance SmoothnessBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Grown Alchemist Says
Product Description:
Triple Weight Hyaluronic Acid serum that provides maximum below-the-surface hydration to the dermis and rehydrates skin cells over time. High weight Hyaluronan molecules deliver immediate intensive hydration to surface layers of the skin, leaving facial skin looking youthfully firm, radiant and noticeably smoother.
About the Brand:
Ingredients Overview
Ingredients List
Aqua (Purified Water), Sodium Hyaluronate (Plant Derived Molecule), Benzyl Alcohol, Dehydroacetic Acid
Key Ingredients
Low-weight-Hyaluronan, Medium-weight-Hyaluronan, High-weight-Hyaluronan
Ingredients Details
Benzyl Alcohol
Common Name(s): Phenylcarbinol,benzenemethanol,alpha-hydroxytoluene
CAS Number: 100-51-6
DESCRIPTION
What It Does: Provides dual fragrance and preservative activity as an aromatic alcohol.
Why It's Used: Multi-function ingredient serving as both fragrance component and preservative โ reduces formulation complexity by providing both functions in one ingredient.
How It Works: Phenylcarbinol provides antimicrobial activity via membrane disruption (effective vs gram-positive bacteria and moulds). solvent for fragrances and difficult-to-dissolve actives. mild oxidative conversion to benzaldehyde provides sweet almond-like fragrance.
Typically Found In: Fragrances,preserved cosmetics,solvent systems
TECHNICAL DETAILS
Primary Category: Fragrance component / preservative
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.001%โ1% (fragrance); up to 1% as preservative
SOURCING & ETHICS
Vegan Status: Yes โ from toluene, or jasmine absolute
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: declared fragrance allergen. also listed as approved preservative (annex v, max 1%). dual regulatory status (fragrance + preservative) depending on function and concentration.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Benzyl alcohol's dual regulatory status (fragrance allergen and approved preservative) creates a formulation paradox: it must be listed as a fragrance allergen if present >0.001% (leave-on) regardless of whether it was added for fragrance or preservation. this regulatory dual identity means a preservative added for antimicrobial function triggers the same allergen declaration requirement as a fragrance added for scent.
Last Verified: Cosing database,ifra standards,eu preservative annex v
Primary Sources: 2026-03-12
Dehydroacetic Acid
Common Name(s): Dha preservative,3-acetyl-6-methyl-2h-pyran-2,4(3h)-dione
CAS Number: 520-45-6
DESCRIPTION
What It Does: Provides broad-spectrum preservation effective at higher ph than benzoate or sorbate.
Why It's Used: Ph-flexible preservative for formulations at ph 5-7 where sodium benzoate and potassium sorbate lose efficacy.
How It Works: Cyclic dicarbonyl pyranone structure provides ph-independent antimicrobial activity (active form is the neutral molecule, not ph-dependent ionisation). effective ph 4-8 (much broader than benzoate/sorbate). good antifungal vs aspergillus and candida. often used as sodium salt (sodium dehydroacetate) for water solubility.
Typically Found In: Higher ph cosmetics,anti-fungal preservation systems
TECHNICAL DETAILS
Primary Category: Functional ingredient โ pyranone 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%โ0.6%
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 max 0.6% as dehydroacetic acid. less commonly used than benzoate/sorbate due to higher cost.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Dehydroacetic acid's ph-independent antimicrobial activity arises from a fundamentally different mechanism vs benzoate/sorbate: rather than requiring the acidic free acid form (ph-dependent ionisation), dha's cyclic diketone structure is itself the active antimicrobial form. this means dha provides equivalent antimicrobial activity at ph 5 and ph 7 โ completely unlike the ph-sensitive preservatives that lose activity above ph 5.
Last Verified: Cosing database,eu preservative annex v,cir safety assessment
Primary Sources: 2026-03-12