Mountainor
Mountainor Glutathione Face Sunscreen Stick, UVA/B PA++++ Skin Brightening & No White Cast
Highlights
WHAT IS IT?
Sunscreen stick with SPF 50+ PA++++, formulated with glutathione, aloe vera extract, sandalwood extract, and vitamin C.
FEATURES
Broad-spectrum protection, skin brightening, no white cast, lightweight, water-resistant, non-greasy.
BEST FOR
combination
CHECKS
Paraben-Free,Fragrance-free
Who Is It For?
All Ages And GendersWhat Does It Help With?
Sun Protection Skin BrighteningBudget
Affordable (under $30)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Mountainor Says
Product Description:
The Mountainor Glutathione Face Sunscreen Stick offers broad-spectrum SPF 50+ PA++++ protection against UVA and UVB rays. Formulated with glutathione, aloe vera extract, sandalwood extract, and vitamin C, it provides skin brightening benefits without leaving a white cast. The lightweight, water-resistant, and non-greasy formula ensures comfortable daily wear.
About the Brand:
Ingredients Overview
Ingredients List
glutathione,aloe-vera-extract,sandalwood-extract,vitamin-c
Key Ingredients
glutathione,aloe-vera-extract,sandalwood-extract,vitamin-c
Ingredients Details
Glutathione
Common Name(s): Gsh,gamma-l-glutamyl-l-cysteinyl-glycine,reduced glutathione
CAS Number: 70-18-8
DESCRIPTION
What It Does: Provides the body's primary antioxidant defense while reducing melanin production for brightening.
Why It's Used: Master antioxidant for comprehensive oxidative stress protection alongside unique melanin-shifting brightening action (pheomelanin preference).
How It Works: Three-amino acid tripeptide (gamma-glu-cys-gly). thiol group (-sh) provides electron donation for antioxidant activity and detoxification conjugation. shifts melanin synthesis from eumelanin (dark brown) toward pheomelanin (light yellow-red) for brightening. regenerates vitamins c and e from their oxidized forms.
Typically Found In: Brightening serums,antioxidant serums,anti-aging products
TECHNICAL DETAILS
Primary Category: Active ingredient โ master cellular antioxidant
Secondary Functions: Melanin shifting brightening,vitamins c+e regeneration,master antioxidant
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ5%
SOURCING & ETHICS
Vegan Status: Yes โ fermentation-derived
Halal Status: Yes
Source Notes: Produced by yeast fermentation or chemical synthesis. stability challenge โ use encapsulated or stabilized forms.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Well-tolerated; some reports of tingling at high concentrations.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Vitamin c,vitamin e,ferulic acid,spf,other antioxidants
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Glutathione's melanin-shifting mechanism (eumelaninโpheomelanin) is entirely different from tyrosinase inhibition. even in the presence of active tyrosinase, glutathione shifts the enzymatic product from dark eumelanin to lighter pheomelanin by chelating copper from the tyrosinase active site and competing for dopa substrate.
Last Verified: Cosing database,villarama & maibach glutathione brightening review,cir safety assessment
Primary Sources: 2026-03-12