castalia Chronoderm Vitamin C 10%
castalia castalia Chronoderm Vitamin C 10% lists 12 ingredients on its label, 11 decoded. See what each one does, its irritancy and comedogenic tendency, and its status in national inventories.
Ingredients overview
Label order. Colour is our internal rating: green routine, yellow restricted or worth a look, red prohibited or high-risk, grey not yet decoded.
Ingredients are listed in label order; the order reflects the label only, not exact concentrations.
Highlights
Free of alcoholFree of fragranceFree of parabensFree of siliconesFree of sulfatesFree of mineral oilFree of essential oilsContains formaldehyde releasers
Key ingredients
- SOLVENT
- Aqua
- HUMECTANT
- Propylene Glycol
- ANTIOXIDANT
- Ascorbic Acid
- DENATURANT
- Glycerin
- BINDING
- Hydroxyethylcellulose
- CHELATING
- Disodium EDTA
- FRAGRANCE
- Potassium Sorbate
- PRESERVATIVE · 限制 V
- Diazolidinyl Urea
Other ingredients
Mu-Conotoxin CniiicSodium HyaluronateHydroxypropyl CyclodextrinPalmitoyl Tripeptide-38
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Aqua | SOLVENT | 0 · 0 | Green |
| Propylene Glycol | HUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS | 1 · 0 | Green |
| Ascorbic Acid | ANTIOXIDANT, BUFFERING, FRAGRANCE, SKIN CONDITIONING | 2 · 0 | Green |
| Mu-Conotoxin Cniiic | Not decoded yet | — | — |
| Glycerin | DENATURANT, HAIR CONDITIONING, HUMECTANT, ORAL CARE, SKIN PROTECTING, SOLVENT, VISCOSITY CONTROLLING, PERFUMING, FRAGRANCE, SKIN CONDITIONING - HUMECTANT | 0 · 0 | Green |
| Hydroxyethylcellulose | BINDING, EMULSION STABILISING, FILM FORMING, LIGHT STABILIZER, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Disodium EDTA | CHELATING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Potassium Sorbate | FRAGRANCE, PRESERVATIVE · 限制 V/4 | 0 · – | Yellow |
| Diazolidinyl Urea | PRESERVATIVE · 限制 V/46 | 1 · – | Yellow |
| Sodium Hyaluronate | HUMECTANT, SKIN CONDITIONING | 0 · 0 | Green |
| Hydroxypropyl Cyclodextrin | FRAGRANCE, SKIN CONDITIONING | — | Green |
| Palmitoyl Tripeptide-38 | SKIN CONDITIONING | 0 · 0 | Green |
Ingredients explained
- Aqua
- Solvent, main base; microbial control is critical
- Propylene Glycol
- Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
- Ascorbic Acid
- Vitamin C, potent antioxidant requiring acidic environment for stability; oxidizes and discolors easily, needs light and air protection, concentration 1-10%, pure L-ascorbic acid is more irritating.
- Mu-Conotoxin Cniiic
- Not decoded yet
- Glycerin
- Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives
- Hydroxyethylcellulose
- Water-soluble cellulose ether for thickening and suspension stabilization; sensitive to ions, electrolytes reduce viscosity, use at pH 7-8.
- Disodium EDTA
- Chelating agent at 0.05–0.5%; sequesters metal ions for stability, boosts preservative efficacy
- Potassium Sorbate
- Preservative effective below pH 6; combinable with sodium benzoate
- Diazolidinyl Urea
- Formaldehyde-releasing preservative; EU cap at 0.2%; avoid for formaldehyde-sensitive users
- Sodium Hyaluronate
- Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture
- Hydroxypropyl Cyclodextrin
- Cyclodextrin to complex fragrances/actives; boosts solubility and stability.
- Palmitoyl Tripeptide-38
- Palmitoyl tripeptide; signaling peptide for collagen and antioxidants; 0.1-1% typical, light-sensitive
Source: full ingredient list published on the product label, collected 2026-09-19. Ratings are our internal reading, not a regulatory conclusion. · Product page
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