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serious-skincare Serious Skincare Pure-Pep Peptide Concentrate

serious-skincare Serious Skincare Pure-Pep Peptide Concentrate lists 31 ingredients on its label, 26 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.

  1. Propylene Glycol
  2. Water
  3. Cyclomethicone
  4. PEG/PPG-18/18 Dimethicone
  5. Cyclopentasiloxane
  6. Acetyl Octapeptide-3
  7. Acetyl Hexapeptide-8
  8. Palmitoyl Tripeptide-5
  9. Glycerin
  10. Tetrapeptide-14
  11. Camellia Sinensis Extract
  12. Aspalathus Linearis Extract
  13. Boswellia Serrata Extract
  14. Honey Extract
  15. Pyroglutamylamidoethyl Indole
  16. Myristoyl Pentapeptide-11
  17. Glutamylamidoethyl Indole
  18. Tetrapeptide-21
  19. Butylene Glycol
  20. Cyclotetrasiloxane
  21. Dimethiconol
  22. Bis-PEG-18 Methyl Ether Dimethyl Silane
  23. Ethylhexylglycerin
  24. Tetrahexyldecyl Ascorbate
  25. Sodium Hyaluronate
  26. Citrus Aurantium Bergamia Fruit Oil
  27. Sodium Chloride
  28. Phenoxyethanol
  29. Sodium Benzoate
  30. Polysorbate 20
  31. Tetrasodium EDTA

Highlights

Free of alcoholFree of parabensFree of sulfatesFree of mineral oilFree of formaldehyde releasersContains siliconesContains PEGContains animal-derivedContains EU-26 allergensContains essential oilsContains fragrance

Key ingredients

HUMECTANT
Propylene GlycolAcetyl Hexapeptide-8
ANTIPLAQUE
Water
SKIN CONDITIONING - EMOLLIENT
CyclomethiconeCyclopentasiloxane
SURFACTANT - EMULSIFYING
PEG/PPG-18/18 Dimethicone
SKIN CONDITIONING - MISCELLANEOUS
Palmitoyl Tripeptide-5
DENATURANT
Glycerin

Other ingredients

Acetyl Octapeptide-3Tetrapeptide-14Camellia Sinensis ExtractAspalathus Linearis ExtractBoswellia Serrata ExtractHoney ExtractPyroglutamylamidoethyl IndoleMyristoyl Pentapeptide-11Glutamylamidoethyl IndoleTetrapeptide-21Butylene GlycolCyclotetrasiloxaneDimethiconolBis-PEG-18 Methyl Ether Dimethyl SilaneEthylhexylglycerinTetrahexyldecyl AscorbateSodium HyaluronateCitrus Aurantium Bergamia Fruit OilSodium ChloridePhenoxyethanolSodium BenzoatePolysorbate 20Tetrasodium EDTA

Skim through

IngredientWhat it doesIrr. · Com.Rating
Propylene GlycolHUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS1 · 0Green
WaterANTIPLAQUE, SKIN CONDITIONING, SOLVENT0 · 0Green
CyclomethiconeSKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SOLVENT · 限制 Entry 1388 of Annex II corresponds to D4 (Cyclotetrasiloxane). If Cyclomethicone contains D4 then entry II/1388 applies. Restricted under COMMISSION REGULATION (EU) 2024/1328. 1. Shall not be placed on the market (a) as a substance on its own; (b) as a constituent of other substances; or (c) in mixtures; in a concentration equal to or greater than 0,1 % by weight of the respective substance after 6 June 2026. [...] 3. By way of derogation: (a) for D4 and D5 in wash-off cosmetic products, paragraph 1, point (c), shall apply afte0 · 0Green
PEG/PPG-18/18 DimethiconeSURFACTANT - EMULSIFYING0 · 0Green
CyclopentasiloxaneSKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SKIN CONDITIONING, SOLVENT0 · 0Green
Acetyl Octapeptide-3Not decoded yet——
Acetyl Hexapeptide-8HUMECTANT, SKIN CONDITIONING0 · 0Green
Palmitoyl Tripeptide-5SKIN CONDITIONING - MISCELLANEOUS0 · 0Green
GlycerinDENATURANT, HAIR CONDITIONING, HUMECTANT, ORAL CARE, SKIN PROTECTING, SOLVENT, VISCOSITY CONTROLLING, PERFUMING, FRAGRANCE, SKIN CONDITIONING - HUMECTANT0 · 0Green
Tetrapeptide-14Not decoded yet——
Camellia Sinensis ExtractANTIOXIDANT, BLEACHING, SKIN CONDITIONING0 · 0Green
Aspalathus Linearis ExtractSKIN CONDITIONING0 · –Green
Boswellia Serrata ExtractSKIN CONDITIONING0 · 0Green
Honey ExtractHUMECTANT, SKIN CONDITIONING, FLAVOURING1 · –Green
Pyroglutamylamidoethyl IndoleNot decoded yet——
Myristoyl Pentapeptide-11Not decoded yet——
Glutamylamidoethyl IndoleNot decoded yet——
Tetrapeptide-21SKIN CONDITIONING0 · –Green
Butylene GlycolHUMECTANT, FRAGRANCE, SKIN CONDITIONING, SOLVENT, VISCOSITY CONTROLLING0 · 0Green
CyclotetrasiloxaneSKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SOLVENT · 限制 II/13880 · 0Green
DimethiconolANTIFOAMING, SKIN CONDITIONING - EMOLLIENT, MOISTURISING0 · 3Green
Bis-PEG-18 Methyl Ether Dimethyl SilaneSKIN CONDITIONING - EMOLLIENT, SURFACTANT - FOAM BOOSTING, HAIR CONDITIONING, HUMECTANT, SURFACTANT - HYDROTROPE, SKIN CONDITIONING, SURFACTANT - CLEANSING0 · 0Green
EthylhexylglycerinDEODORANT, SKIN CONDITIONING0 · 0Green
Tetrahexyldecyl AscorbateANTIOXIDANT, SKIN CONDITIONING0 · 0Green
Sodium HyaluronateHUMECTANT, SKIN CONDITIONING0 · 0Green
Citrus Aurantium Bergamia Fruit OilFRAGRANCE, PERFUMING1 · –Green
Sodium ChlorideBULKING, FRAGRANCE, ORAL CARE, VISCOSITY CONTROLLING0 · 0Green
PhenoxyethanolANTIMICROBIAL, PRESERVATIVE · 限制 V/291 · 0Yellow
Sodium BenzoateANTICORROSIVE, FRAGRANCE, PRESERVATIVE · 限制 V/10 · –Yellow
Polysorbate 20SURFACTANT - EMULSIFYING, SURFACTANT - CLEANSING0 · 0Green
Tetrasodium EDTACHELATING0 · 0Green

Ingredients explained

Propylene Glycol
Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
Water
Primary solvent and base; requires preservative system to prevent microbial growth
Cyclomethicone
Volatile silicone for light feel; contains D4 restricted by EU, must be <0.1% after 2026
PEG/PPG-18/18 Dimethicone
PEG/PPG siloxane; emulsifier/thickener; low irrit, watch PEG total conc limits
Cyclopentasiloxane
Cyclopentasiloxane for emollient/solvent; volatile silicone, smooth feel, check VOC regulations.
Acetyl Octapeptide-3
Not decoded yet
Acetyl Hexapeptide-8
Acetyl hexapeptide-8; signal peptide, low concentration, used for firming and hydration, low irritancy.
Palmitoyl Tripeptide-5
Peptide actives for skin conditioning; typically used at low levels.
Glycerin
Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives
Tetrapeptide-14
Not decoded yet
Camellia Sinensis Extract
Green tea extract, polyphenols, antioxidant, soothing, low comedogenic.
Aspalathus Linearis Extract
Rooibos tea extract with high antioxidant capacity; soothing, no known irritation
Boswellia Serrata Extract
Anti-inflammatory and soothing extract, 0.1–0.5%; contains boswellic acids, check compatibility with fragrances
Honey Extract
Humectant and skin conditioning agent; hygroscopic, sensitive to pH.
Pyroglutamylamidoethyl Indole
Not decoded yet
Myristoyl Pentapeptide-11
Not decoded yet
Glutamylamidoethyl Indole
Not decoded yet
Tetrapeptide-21
Tetrapeptide-21 often used for regeneration; requires temperature/light control and careful acid compatibility.
Butylene Glycol
Polyol humectant and solvent at 1–5%; aids solubilization, light feel
Cyclotetrasiloxane
Volatile silicone providing slip; D4 is restricted in EU rinse-off products and requires labeling for leave-on use.
Dimethiconol
Dimethiconol; silicone emollient providing silky feel and reducing friction; moderate comedogenicity, avoid excess.
Bis-PEG-18 Methyl Ether Dimethyl Silane
Silicone modifier for smoothness; contains PEG, used for foam and cleansing, manage PEG residuals
Ethylhexylglycerin
Mild conditioner and preservative booster at 0.5–1%; reduces preservative load, smooth feel
Tetrahexyldecyl Ascorbate
Lipophilic Vitamin C derivative, antioxidant and brightening; more stable than VC, oil-soluble, must pair with oil phase
Sodium Hyaluronate
Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture
Citrus Aurantium Bergamia Fruit Oil
Bergamot essential oil, natural fragrance and photosensitizer; limit daytime use or use FCF grade
Sodium Chloride
Salt for gel viscosity control; used as precipitant in soaps
Phenoxyethanol
Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin
Sodium Benzoate
Preservative booster, effective below pH 4.5; combinable with sorbates
Polysorbate 20
Non-ionic emulsifier and cleansing surfactant; contains PEG, control microbial load.
Tetrasodium EDTA
Chelator removing metal ions to enhance antioxidant and preservative efficacy; very low usage, typically 0.05-0.1%, no direct skincare function.

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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