syoss Keratin Shampoo
syoss Syoss Keratin Shampoo lists 27 ingredients on its label, 25 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.
- Aqua (Water
- Eau)
- Sodium Laureth Sulfate
- Cocamidopropyl Betaine
- PEG-7 Glyceryl Cocoate
- Sodium Chloride
- Nymphaea Caerulea Flower Extract
- Glycine
- Lysine Hcl
- Hydrolyzed Keratin
- Disodium Cocoamphodiacetate
- Parfum
- Sodium Benzoate
- Citric Acid
- Cocamide MEA
- Dimethicone
- Guar Hydroxypropyltrimonium Chloride
- Glycol Distearate
- Hydrogenated Castor Oil
- Laureth-4
- Propylene Glycol
- Sodium Hydroxide
- Linalool
- Laureth-23
- Salicylic Acid
- Phenoxyethanol
- Potassium Sorbate
Highlights
Free of alcoholFree of parabensFree of mineral oilFree of essential oilsFree of formaldehyde releasersContains sulfatesContains PEGContains animal-derivedContains EU-26 allergensContains fragranceContains silicones
Key ingredients
- 溶剂
- Aqua (WaterEau)
- CLEANSING
- Sodium Laureth Sulfate
- ANTISTATIC
- Cocamidopropyl BetaineGlycine
- SURFACTANT - EMULSIFYING
- PEG-7 Glyceryl Cocoate
- BULKING
- Sodium Chloride
- SKIN CONDITIONING
- Nymphaea Caerulea Flower Extract
Other ingredients
Lysine HclHydrolyzed KeratinDisodium CocoamphodiacetateParfumSodium BenzoateCitric AcidCocamide MEADimethiconeGuar Hydroxypropyltrimonium ChlorideGlycol DistearateHydrogenated Castor OilLaureth-4Propylene GlycolSodium HydroxideLinaloolLaureth-23Salicylic AcidPhenoxyethanolPotassium Sorbate
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Aqua (Water | 溶剂 | 0 · 0 | Green |
| Eau) | 溶剂,稀释剂 | 0 · 0 | Green |
| Sodium Laureth Sulfate | CLEANSING, SURFACTANT - EMULSIFYING, FOAMING, SURFACTANT - CLEANSING | 2 · 0 | Green |
| Cocamidopropyl Betaine | ANTISTATIC, CLEANSING, SURFACTANT - FOAM BOOSTING, HAIR CONDITIONING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING, SKIN CONDITIONING - MISCELLANEOUS | 0 · 0 | Green |
| PEG-7 Glyceryl Cocoate | SURFACTANT - EMULSIFYING, SURFACTANT - CLEANSING | 0 · 0 | Green |
| Sodium Chloride | BULKING, FRAGRANCE, ORAL CARE, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Nymphaea Caerulea Flower Extract | SKIN CONDITIONING | 0 · 0 | Green |
| Glycine | ANTISTATIC, BUFFERING, HAIR CONDITIONING, SKIN CONDITIONING | 0 · – | Green |
| Lysine Hcl | HAIR CONDITIONING, SKIN CONDITIONING | 0 · 0 | Green |
| Hydrolyzed Keratin | ANTISTATIC, FILM FORMING, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING | 0 · – | Green |
| Disodium Cocoamphodiacetate | CLEANSING, SURFACTANT - FOAM BOOSTING, HAIR CONDITIONING, SURFACTANT - HYDROTROPE, SKIN CONDITIONING, SURFACTANT - CLEANSING | 1 · 0 | Green |
| Parfum | FRAGRANCE, PERFUMING | 2 · 0 | Yellow |
| Sodium Benzoate | ANTICORROSIVE, FRAGRANCE, PRESERVATIVE · 限制 V/1 | 0 · – | Yellow |
| Citric Acid | BUFFERING, CHELATING, FRAGRANCE | 1 · 0 | Green |
| Cocamide MEA | SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING | 0 · – | Yellow |
| Dimethicone | ANTIFOAMING, SKIN CONDITIONING - EMOLLIENT, SKIN CONDITIONING, SKIN PROTECTING | 0 · 0 | Green |
| Guar Hydroxypropyltrimonium Chloride | ANTISTATIC, FILM FORMING, SKIN CONDITIONING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Glycol Distearate | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, OPACIFYING, SKIN CONDITIONING, VISCOSITY CONTROLLING | 0 · 1 | Green |
| Hydrogenated Castor Oil | SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING, SKIN CONDITIONING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Laureth-4 | Not decoded yet | — | — |
| Propylene Glycol | HUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS | 1 · 0 | Green |
| Sodium Hydroxide | BUFFERING, DENATURANT · 限制 III/15a | 3 · – | Green |
| Linalool | DEODORANT, PERFUMING · 限制 III/84 | 1 · 0 | Yellow |
| Laureth-23 | Not decoded yet | — | — |
| Salicylic Acid | ANTI-SEBORRHEIC, HAIR CONDITIONING, KERATOLYTIC, FRAGRANCE, PRESERVATIVE, SKIN CONDITIONING · 限制 III/98 V/3 | 2 · 0 | Yellow |
| Phenoxyethanol | ANTIMICROBIAL, PRESERVATIVE · 限制 V/29 | 1 · 0 | Yellow |
| Potassium Sorbate | FRAGRANCE, PRESERVATIVE · 限制 V/4 | 0 · – | Yellow |
Ingredients explained
- Aqua (Water
- Primary solvent; requires preservatives at high concentration; adjust viscosity with thickeners
- Eau)
- Pure water, solvent and diluent; drinking water standard, no known allergens or irritation
- Sodium Laureth Sulfate
- Common anionic surfactant, strong foam but drying; check cationic compatibility, high eye irritation
- Cocamidopropyl Betaine
- Cocamidopropyl betaine; zwitterionic co-surfactant reducing irritation and boosting foam, common in mild cleansers.
- PEG-7 Glyceryl Cocoate
- PEG-modified nonionic surfactant for emulsification and cleansing; contains PEG, monitor dioxane, low comedogenicity.
- Sodium Chloride
- Salt for gel viscosity control; used as precipitant in soaps
- Nymphaea Caerulea Flower Extract
- Flower extract for skin conditioning; assess allergenic potential.
- Glycine
- Humectant amino acid, 1–3%; small molecule, low irritation.
- Lysine Hcl
- Lysine HCl, amino acid for hair and skin conditioning, reduces protein loss
- Hydrolyzed Keratin
- Hydrolyzed keratin; small peptides; barrier repair, humectant, no pub comed data
- Disodium Cocoamphodiacetate
- Amphoteric surfactant for cleansing and foam boosting; milder than sulfates, low comedogenic risk.
- Parfum
- Fragrance for scent; may contain allergens, caution for sensitive skin, full labeling required.
- Sodium Benzoate
- Preservative booster, effective below pH 4.5; combinable with sorbates
- Citric Acid
- Buffer and chelator at 0.1–2%; adjusts pH, may irritate sensitive skin at low pH
- Cocamide MEA
- Foam booster and thickener for cleansing products; 1-3%, check compatibility with anionic surfactants
- Dimethicone
- Silicone occlusive at 1–5%; provides smooth feel, non-penetrating, suitable for sensitive skin
- Guar Hydroxypropyltrimonium Chloride
- Cationic guar derivative for antistatic, film-forming, viscosity control; common in hair/skin conditioning
- Glycol Distearate
- Glycol distearate for thickening and emulsification; non-ionic, improves viscosity
- Hydrogenated Castor Oil
- Hydrogenated castor oil for emollient, emulsifying, mild cleansing; ensure high purity
- Laureth-4
- Not decoded yet
- Propylene Glycol
- Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
- Sodium Hydroxide
- Strong base neutralizer for pH adjustment; handle with extreme care
- Linalool
- Natural fragrance component at ≤0.05%; one of EU 26 allergens, caution for sensitive skin
- Laureth-23
- Not decoded yet
- Salicylic Acid
- Lipophilic BHA at 0.5-2%; exfoliant/sebum control, irritation/sensitization at high conc., photosensitivity (SPF needed), avoid sensitive/pregnant.
- Phenoxyethanol
- Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin
- Potassium Sorbate
- Preservative effective below pH 6; combinable with sodium benzoate
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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