
Highlights
WHAT IS IT?
Face Serum with 2 ingredients
FEATURES
Brightening, reduces dark spots & hyperpigmentation, slight tingling sensation is normal, use SPF30+ after application
BEST FOR
sensitive
CHECKS
no artificial fragrance noted
Who Is It For?
Gender-neutral All Ages Not Explicitly SpecifiedWhat Does It Help With?
Brightening Skin Reducing Dark Spots HyperpigmentationBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Nykaa E retail limited Says
Product Description:
Explore the entire range of Serums & Essence available on Nykaa. Shop more Cos-IQ products here.You can browse through the complete world of Cos-IQ Serums & Essence.
About the Brand:
Ingredients Overview
Ingredients List
3-O-Ethyl-Ascorbic-Acid,Propendiol
Key Ingredients
3-O-Ethyl Ascorbic Acid, Propendiol
Ingredients Details
3-o-ethyl Ascorbic Acid
Common Name(s): 3-o-ethyl ascorbic acid
DESCRIPTION
What It Does: Loosens corneocyte adhesion in the stratum corneum, accelerating cell turnover, refining skin texture, and improving radiance.
Why It's Used: Organic acids at cosmetic ph values provide controlled keratolytic exfoliation that improves skin texture, pore appearance, and radiance without mechanical irritation.
How It Works: At appropriate ph, the acid's undissociated form penetrates the stratum corneum and dissolves the ionic bonds between corneocyte desmosomes (calcium chelation mechanism), facilitating controlled desquamation and cell renewal.
Typically Found In: Toners,exfoliants,serums,peels,cleansers
TECHNICAL DETAILS
Primary Category: Exfoliants
Secondary Functions: Brightening,keratolytic
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5โ20%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic or plant-derived acid; no animal components.
SKIN COMPATIBILITY
Irritancy Rating: 2
Comedogenicity Rating: 0
Sensitivity Concerns: May cause irritation or stinging in sensitive or barrier-compromised skin at high concentrations; patch test recommended.
Safe for Sensitive Skin: Conditional
SAFETY & COMPATIBILITY
Safety Profile: Safe within recommended ph and concentration ranges. sensitization risk increases above 10% aha. patch test recommended for sensitive skin. mildly irritating to some individuals at typical cosmetic use concentrations.
Works Well With: Niacinamide,hyaluronic acid,ceramides,vitamin c
Avoid Combining With: High concentrations on sensitive/broken skin; avoid with physical exfoliants
SCIENTIFIC NOTE
Cosmetic acids function at the pka boundary: only the undissociated acid (rcooh) penetrates the stratum corneum lipid barrier, while the ionized carboxylate (rcooโป) does not. the henderson-hasselbalch equation governs the fraction of active species at formulation ph; typically 0.5โ3.0% undissociated acid provides efficacy while minimizing irritation.
Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
Primary Sources: 2025-01-15