INCI Name
Ascorbic Acid with L...
Functions
3 Roles
Sustainability
7/10
Category
actives
What It Does
PureWay-C® is a patented form of vitamin C (ascorbic acid) complexed with lipid metabolites — including fatty acids and lipid-based carriers — developed to enhance cellular uptake, stability, and bioavailability compared to standard ascorbic acid. The lipid metabolite matrix helps protect the notoriously unstable ascorbic acid molecule from oxidative degradation, extending shelf life and reducing the formulation challenges typically associated with pure L-ascorbic acid. Formulators choose PureWay-C® for its improved skin absorption, reduced irritation potential at equivalent efficacy doses, and its demonstrated performance in clinical studies supporting collagen synthesis, brightening, and antioxidant protection.
Technical Properties
pH Range
2.5-4.5
Optimal working range
Ionic Charge
anionic
Molecular charge type
Viscosity Effect
neutral
Impact on formula thickness
Foaming Ability
none
Lather generation
Ingredient Compatibility
Known Interactions
Benzoyl Peroxide oxidizes L-Ascorbic Acid, rendering both ingredients inactive. These must never be combined.
Hydrogen Peroxide rapidly oxidizes Ascorbic Acid, deactivating both. Strong oxidizer + antioxidant neutralization.
Ascorbic Acid reduces Cu2+ to Cu1+, deactivating copper peptides and generating free radicals via Fenton-like reactions. These must not be combined.
Ascorbic Acid reduces Cu2+ in GHK-Cu to Cu1+, deactivating the peptide complex and generating reactive oxygen species. Never combine in the same formulation.
Niacinamide and L-Ascorbic Acid can interact at low pH, potentially forming nicotinic acid (causes flushing). They work optimally at different pH ranges (Niacinamide pH 5-7, Ascorbic Acid pH 2.5-3.5). Consider using a Vitamin C derivative stable at higher pH, or separate products.
Retinol and L-Ascorbic Acid both require low pH but Retinol is unstable in acidic conditions. Using both in the same formula reduces efficacy of both actives. Separate into AM (Vitamin C) and PM (Retinol) products.
Ascorbic Acid can degrade Cyanocobalamin (Vitamin B12) in solution, converting it to inactive analogues. In liquid/gummy formulations, use Methylcobalamin or separate the vitamins. Tablet/capsule forms are less affected.
Ascorbic Acid + Sodium Benzoate can form benzene (a carcinogen) in acidic conditions with heat or UV exposure. This is a well-documented FDA concern in beverages. Use alternative preservatives or ensure pH > 4 and avoid metal catalysts.
Sodium Hyaluronate may thin in viscosity at the low pH required for L-Ascorbic Acid (pH < 3.5). Consider using a lower molecular weight HA or a Vitamin C derivative stable at higher pH.
Iron from iron oxide pigments can catalyze oxidation of Ascorbic Acid via Fenton reaction. Not a concern at typical pigment levels in tinted products, but avoid high concentrations of both.
Arbutin is most stable and effective at pH 5-7, while L-Ascorbic Acid requires pH 2.5-3.5. Combined use forces a pH compromise that reduces efficacy of one or both. Use an Ascorbic Acid derivative if combining.
Ascorbic Acid can accelerate Thiamine (B1) degradation in solution at acidic pH. In liquid supplements, this can reduce B1 potency over shelf life. Dry forms are unaffected.
Sustainability Profile
Sustainability Score
Biodegradability
readily biodegradable
Source
mixed
Feedstock
Ascorbic acid derived from glucose fermentation; lipid metabolites (fatty acids and metabolic byproducts) sourced from plant-based or biotechnological processes
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Quick Reference
- Full INCI Name
- Ascorbic Acid with Lipid Metabolites
- Common Name
- PureWay-C® Vitamin C
- Category
- actives