Klairs Vitamin C Serum

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. Water
2. Propylene Glycol
3. Ascorbic Acid
4. Hydroxyethylcellulose
5. Centella Asiatica Extract
6. Citrus Junos Fruit Extract
7. Anise Fruit Extract
8. or Anise Fruit Extract
9. Citrus Paradisi Fruit Extract
10. Nelumbium Speciosum Flower Extract
11. Paeonia Suffruticosa Root Extract
12. Scutellaria Baicalensis Root Extract
13. Polysorbate 60
14. Broccoli Extract
15. Chaenomeles Sinensis Fruit Extract
16. Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
17. Disodium EDTA
18. Lavandula Angustifolia Oil
19. Camellia Sinensis Callus Culture Extract
20. Larix Europaea Wood Extract
21. Chrysanthellum Indicum Extract
22. Rheum Palmatum Root Extract
23. Asarum Sieboldi Root Extract
24. Quercus Mongolia Leaf Extract
25. Persicaria Hydropiper Extract
26. Corydalis Turtschaninovii Root Extract
27. Coptis Chinensis Root Extract
28. Magnolia Obovata Bark Extract
29. Lysine HCL
30. Proline
31. Sodium Ascorbyl Phosphate
32. Acetyl methionine
33. Theanine
34. Lecithin
35. Acetyl Glutamine
36. SH-Oligopeptide-1
37. SH-Oligopeptide-2
38. SH-Polypeptide-1
39. SH-Polypeptide-9
40. SH-Polypeptide-11
41. Bacillus/Soybean/Folic Acid Ferment Extract
42. Sodium Hyaluronate
43. Caprylyl Glycol
44. Butylene Glycol
45. 1,2-Hexanediol

Highlights

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

Key ingredients

ANTIPLAQUE

Water

HUMECTANT

Propylene Glycol

ANTIOXIDANT

Ascorbic Acid

BINDING

Hydroxyethylcellulose

CLEANSING

Centella Asiatica Extract

SKIN CONDITIONING

Citrus Junos Fruit ExtractNelumbium Speciosum Flower Extract

SKIN CONDITIONING · 限制 II

Citrus Paradisi Fruit Extract

Other ingredients

Anise Fruit Extractor Anise Fruit ExtractPaeonia Suffruticosa Root ExtractScutellaria Baicalensis Root ExtractPolysorbate 60Broccoli ExtractChaenomeles Sinensis Fruit ExtractSodium Acrylate/Sodium Acryloyldimethyl Taurate CopolymerDisodium EDTALavandula Angustifolia OilCamellia Sinensis Callus Culture ExtractLarix Europaea Wood ExtractChrysanthellum Indicum ExtractRheum Palmatum Root ExtractAsarum Sieboldi Root ExtractQuercus Mongolia Leaf ExtractPersicaria Hydropiper ExtractCorydalis Turtschaninovii Root ExtractCoptis Chinensis Root ExtractMagnolia Obovata Bark ExtractLysine HCLProlineSodium Ascorbyl PhosphateAcetyl methionineTheanineLecithinAcetyl GlutamineSH-Oligopeptide-1SH-Oligopeptide-2SH-Polypeptide-1SH-Polypeptide-9SH-Polypeptide-11Bacillus/Soybean/Folic Acid Ferment ExtractSodium HyaluronateCaprylyl GlycolButylene Glycol1,2-Hexanediol

Skim through

Ingredients explained

Water

Primary solvent and base; requires preservative system to prevent microbial growth

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.

Hydroxyethylcellulose

Water-soluble cellulose ether for thickening and suspension stabilization; sensitive to ions, electrolytes reduce viscosity, use at pH 7-8.

Centella Asiatica Extract

Centella asiatica extract for soothing/repair; low irritation, common in sensitive skin products.

Citrus Junos Fruit Extract

Yuzu peel extract; provides antioxidants, low concentration reduces photosensitivity risk.

Anise Fruit Extract

Not decoded yet

or Anise Fruit Extract

Not decoded yet

Citrus Paradisi Fruit Extract

Grapefruit extract; antioxidant, contains furanocoumarins (photosensitizing), use low concentration, avoid sun.

Nelumbium Speciosum Flower Extract

Lotus flower extract containing magnolol, skin conditioner; botanical, low concentration use

Paeonia Suffruticosa Root Extract

Paeonia root extract, skin protecting agent with antioxidants to defend against environmental damage

Scutellaria Baicalensis Root Extract

Scutellaria root extract with baicalin for antioxidant and soothing effects; also provides astringent and humectant properties.

Polysorbate 60

Non-ionic emulsifier and solubilizer for O/W or W/O stability; may cause mild stinging on sensitive skin, typically 1-5%.

Broccoli Extract

Not decoded yet

Chaenomeles Sinensis Fruit Extract

Antioxidant and astringent extract; contains enzymes and acids, mild irritation risk

Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Acrylate copolymer for film/thickening; water-soluble, compatible, monitor residual monomers.

Disodium EDTA

Chelating agent at 0.05–0.5%; sequesters metal ions for stability, boosts preservative efficacy

Lavandula Angustifolia Oil

Fragrance essential oil, 0.1–1%; contains allergens, patch test required.

Camellia Sinensis Callus Culture Extract

Camellia sinensis callus culture extract; polyphenol source for conditioning and mild scent; reduces allergens vs essential oils

Larix Europaea Wood Extract

Larix europaea wood extract, flavonoid-rich; low-dose humectant/soothing, stability check at high loads.

Chrysanthellum Indicum Extract

Golden chamomile extract, soothing; 0.1–0.5% typical, data limited, low risk

Rheum Palmatum Root Extract

Rheum palmatum root extract; astringent and skin conditioning; cautious for sensitive or photoreactive skin

Asarum Sieboldi Root Extract

Asarum sieboldii root extract; volatile oil source for skin conditioning; monitor for sensitizing potential

Quercus Mongolia Leaf Extract

Quercus mongolica leaf extract; polyphenol source for skin conditioning; irritancy data not public

Persicaria Hydropiper Extract

Persicaria hydropiper extract; botanical skin conditioner; no public irritancy or comedogenic data

Corydalis Turtschaninovii Root Extract

Corydalis turtschaninovii root extract; botanical skin conditioner; no public irritancy or comedogenic data

Coptis Chinensis Root Extract

Antioxidant/soothing herb; low concentration usage, yellow color, high dose may be irritating

Magnolia Obovata Bark Extract

Bark extract containing magnolol, used as low-level skin conditioner; botanical, monitor batch stability

Lysine HCL

Lysine HCl, amino acid for hair and skin conditioning, reduces protein loss

Proline

Proline, amino-acid humectant; boosts stratum corneum hydration, stable at pH 4-5.

Sodium Ascorbyl Phosphate

Vitamin C derivative antioxidant at 0.5–2%; light-sensitive, requires opaque packaging

Acetyl methionine

Acetyl methionine; skin conditioning and nutritional support; typically low concentration, check compatibility

Theanine

Theanine, antioxidant and humectant; water-soluble, suitable for aqueous phases, use at low concentrations

Lecithin

Phospholipid emulsifier at 1-5%; biocompatible, moisturizing/antioxidant, prone to oxidation (add TBHQ), mild for sensitive skin.

Acetyl Glutamine

Acetylated glutamine; barrier repair and soothing, suitable for acute or sensitive skin

SH-Oligopeptide-1

Synthetic short oligopeptide for skin conditioning; generally low irritancy and comedogenicity

SH-Oligopeptide-2

Not decoded yet

SH-Polypeptide-1

Not decoded yet

SH-Polypeptide-9

Not decoded yet

SH-Polypeptide-11

Not decoded yet

Bacillus/Soybean/Folic Acid Ferment Extract

Not decoded yet

Sodium Hyaluronate

Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture

Caprylyl Glycol

Polyol conditioner and preservative booster at 0.5–3%; emollient feel, often paired with 1,2-hexanediol

Butylene Glycol

Polyol humectant and solvent at 1–5%; aids solubilization, light feel

1,2-Hexanediol

Polyol solvent and preservative booster at 1–5%; light feel, can replace some traditional preservatives