
Highlights
WHAT IS IT?
Pro-Retinol Serum
FEATURES
Line reducing, skin refining, tone evening properties
BEST FOR
combination
CHECKS
Parabens-free, fragrance-free
Who Is It For?
Adults Interested In Anti-aging SkincareWhat Does It Help With?
Fine Lines Skin Texture Uneven ToneBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Glossier Says
Product Description:
A daily retinol product for line reducing, refining, and tone evening
About the Brand:
Ingredients Overview
Ingredients List
Water/Aqua/Eau, Glycerin, Propanediol, Cetyl Ethylhexanoate, C13-15 Alkane, Cetyl Alcohol, Butyrospermum Parkii (Shea) Butter, Cetearyl Olivate, Coconut Alkanes, Sorbitan Olivate, Potassium Cetyl Phosphate, Betaine, Retinyl Sunflowerseedate, Stevia Rebaudiana Leaf/Stem Extract, Ophiopogon Japonicus Root Extract, Camellia Oleifera Leaf Extract, Aloe Barbadensis Leaf Juice, Sodium Hyaluronate, Tocopherol, Coco-Caprylate/Caprate, Ethylhexylglycerin, Glycol Stearate, Glyceryl Stearate, Caprylic/Capric Triglyceride, Maltodextrin, Xanthan Gum, Benzoic Acid, Sodium Hydroxide, Carbomer, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Trisodium Ethylenediamine Disuccinate
Key Ingredients
pro-retinol
Ingredients Details
Butyrospermum Parkii Shea Butter
Common Name(s): Butyrospermum parkii shea butter
DESCRIPTION
What It Does: Delivers targeted skin-conditioning or bioactive benefits through a specific mechanism of action suited to the formulation's intended purpose.
Why It's Used: Specialty actives address specific skin concerns through targeted molecular mechanisms, providing efficacy beyond what base formulation ingredients alone can achieve.
How It Works: The bioactive compound interacts with specific molecular targets in skin cells or the extracellular matrix — enzymes, receptors, structural proteins, or signaling molecules — triggering beneficial biological responses.
Typically Found In: Serums,treatments,moisturizers,specialty products
TECHNICAL DETAILS
Primary Category: Specialty actives
Secondary Functions: Skin-conditioning,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.01–5%
SOURCING & ETHICS
Vegan Status: Conditional - supplier confirmation required
Halal Status: Unverified - supplier confirmation required
Source Notes: Specialty active ingredient; check individual sourcing for vegan status. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1899-12-31 00:00:00 -0800
Sensitivity Concerns: Low sensitization potential at recommended use concentrations.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.
Works Well With: Niacinamide,hyaluronic acid,vitamin c,peptides
Avoid Combining With: Incompatible with oxidizing agents; check ph stability
SCIENTIFIC NOTE
Specialty actives typically work through enzyme inhibition (e.g., tyrosinase inhibition for brightening, mmp inhibition for anti-aging), receptor activation (e.g., retinoid receptors, ppar-γ for barrier genes), or transcription factor modulation (e.g., nrf2 for antioxidant gene upregulation). structure-activity relationships determine potency and selectivity.
Last Verified: 2025-01-15
Primary Sources: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
C13-15 Alkane
Common Name(s): C13-15 alkane,cosmetic active,functional ingredient
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function at recommended use concentration.
Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.
How It Works: Works through the mechanism of its molecular class — physicochemical or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed cosmetic literature.
Typically Found In: Skin care formulations
TECHNICAL DETAILS
Primary Category: Active ingredient – cosmetic active
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%–10%
SOURCING & ETHICS
Vegan Status: Conditional - supplier confirmation required
Halal Status: Unverified - supplier confirmation required
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – 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: 1–2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
C13-15 alkane has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: 2026-03-12
Primary Sources: Cosing database,c13-15 alkane technical literature
Cetearyl Olivate
Common Name(s): Nonionic emulsifier,o/w surfactant,emulsion stabiliser
CAS Number: N/a
DESCRIPTION
What It Does: Stabilises o/w emulsions by forming a molecular monolayer at the oil-water interface, provides co-emulsification synergy with other emulsifiers, and contributes to emulsion texture through interfacial film properties.
Why It's Used: Nonionic emulsifiers are preferred for sensitive skin and ph-extreme formulations — no ionic charge means no electrostatic interaction with skin proteins, no ph-dependent function loss, and compatibility with both anionic and cationic co-ingredients.
How It Works: Hlb determines emulsion type: hlb 8–12 for o/w emulsification; hlb 3–6 for w/o. the peg or glycoside head group provides hydrophilicity while the c16–c18 fatty chain provides lipophilicity. at the o/w interface, nonionic emulsifiers form a mixed monolayer reducing interfacial tension from ~35 mn/m (clean oil-water) to 5–10 mn/m, providing thermodynamic stabilisation.
Typically Found In: Creams,lotions,o/w emulsions
TECHNICAL DETAILS
Primary Category: Active ingredient – cosmetic active
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–10%
SOURCING & ETHICS
Vegan Status: Conditional - supplier confirmation required
Halal Status: Unverified - supplier confirmation required
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – 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: 1–2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Mixed emulsifier systems (e.g., glyceryl stearate + peg-100 stearate, or cetearyl glucoside + cetearyl alcohol) provide better emulsion stability than single emulsifiers — synergistic packing of different molecular geometries creates a more cohesive, mechanically robust interfacial film.
Last Verified: 2026-03-12
Primary Sources: Cosing database,nonionic emulsifier hlb system review
Cetyl Alcohol
Common Name(s): 1-hexadecanol,palmityl alcohol,n-cetyl alcohol
CAS Number: 36653-82-4
DESCRIPTION
What It Does: Provides c16 fatty alcohol emolliency and thickening for well-textured cosmetic emulsions.
Why It's Used: Lighter-textured fatty alcohol alternative to stearyl alcohol for creams and conditioners requiring less heavy emolliency.
How It Works: C16 chain length provides slightly lower melting point (49°c) than stearyl (60°c) giving softer, lighter emulsion texture. forms lamellar networks for thickening and stability. direct skin and hair conditioning via fatty alcohol film.
Typically Found In: Creams,hair conditioners,lotions
TECHNICAL DETAILS
Primary Category: Functional ingredient – fatty alcohol
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–15%
SOURCING & ETHICS
Vegan Status: Yes - standard ethanol routes are non-animal; confirm denaturant origin
Halal Status: Conditional - ethanol production route and residual concentration; jurisdiction-dependent, refer to certifier stance
Source Notes: Plant-derived, synthetic or animal-derived. verify source. [audit 2026-07-29 rev2: ethanol pathway; determination depends on route, on whether the plant also produces beverage alcohol, and on residual concentration. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Cetyl alcohol's c16 chain length is at the approximate thermal transition point for fatty alcohol lamellar crystallization at skin temperature (33°c). this transition (from ordered crystalline to disordered liquid phase near skin temperature) provides the characteristic 'melts on application' sensory profile that makes cetyl alcohol-containing products feel cooling and light on initial application.
Last Verified: 2026-03-12
Primary Sources: Cosing database,cir safety assessment