TIRTIR
Pure Vitamin C24 Serum
Pure Vitamin C24 Serum
TIRTIR
pure-vitamin-c24-serum
Serum
9818417791269
Morning or Evening?
How often will you use this product?
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Highlights
WHAT IS IT?
Vitamin C Serum with 24% pure Vitamin C
FEATURES
24% pure Vitamin C, triple collagen, CICA-7 Complex, brightening and firming solution
BEST FOR
all skin type
CHECKS
Free of any harsh alcohols, common allergens, fragrances, parabens, silicones, sulfates
Who Is It For?
All Ages All GendersWhat Does It Help With?
Brightening Firming Reducing Fine Lines Evening Skin Tone Diminishing Hyperpigmentation Reducing Blemishes And MelasmaBudget
Affordable (under $30)How To Use
Which routine should it be used in?
Instructions:
Key Information
What TIRTIR Says
Product Description:
Brighten, Firm, and Rejuvenate Your Skin with TIRTIR Pure Vitamin C24 Serum, a potent brightening and firming solution with 24% pure Vitamin C, triple collagen, and CICA-7 Complex
About the Brand:
Ingredients Overview
Ingredients List
Propanediol, Ascorbic Acid, Betaine, (-)-Alpha-Bisabolol, Butylene Glycol, 1,2-Hexanediol, Centella Asiatica Extract, Centella Asiatica Leaf Extract, Centella Asiatica Root Extract, Hydrolyzed Collagen, Soluble Collagen, Atelocollagen, Asiatic Acid, Asiaticoside, Acetyl Hexapeptide-8, Madecassic Acid, Madecassoside, Water
Key Ingredients
Vitamin C, Triple Collagen, CICA-7 Complex, Centella Asiatica
Ingredients Details
Propanediol
Common Name(s): 1,3-propanediol,zemea,bio-propanediol
CAS Number: 504-63-2
DESCRIPTION
What It Does: Provides humectant and solvent functionality from sustainable corn-based fermentation.
Why It's Used: Bio-based propylene glycol alternative from renewable corn โ propanediol provides equivalent functionality to propylene glycol with sustainable renewable feedstock and superior skin feel.
How It Works: Two oh groups provide humectant water binding. excellent solvent for fragrances, actives, and preservatives. mild antimicrobial from diol structure for preservative system boosting. renew corn fermentation origin (dupont zemea process). better skin feel than propylene glycol โ less sticky.
Typically Found In: Virtually all cosmetic categories as pg alternative
TECHNICAL DETAILS
Primary Category: Functional ingredient โ humectant
Secondary Functions: Tewl reduction,skin plumping
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ20%
SOURCING & ETHICS
Vegan Status: Yes โ from corn sugar fermentation
Halal Status: Yes
Source Notes: Synthetic or naturally derived. excellent aqueous solubility.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; suitable for all skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Propanediol's dupont tate & lyle bio products 'zemea' process ferments corn sugar to 1,3-propanediol using engineered e. coli โ one of the first commercially viable bio-fermentation routes to a cosmetic diol previously made only from petroleum. the renewable route produces chemically identical 1,3-propanediol while reducing carbon footprint by approximately 40% vs petrochemical synthesis.
Last Verified: Cosing database,dupont tate & lyle zemea technical data,cir safety assessment
Primary Sources: 2026-03-12
Vitamin C
Common Name(s): Vitamin c,cosmetic active,established function
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function โ skin conditioning, antioxidant protection, active biological benefit, or formulation function โ 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 โ 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 โ 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%โ10%
SOURCING & ETHICS
Vegan Status: Conditional
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
Vitamin c has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: Cosing database,vitamin c technical literature
Primary Sources: 2026-03-12