TST Magic C Whitening 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. Aqua
2. Glycerol
3. Nicotinamide
4. Betaine
5. Trehalose
6. Butylene Glycol
7. Hydroquinone-alpha-D-glucopyranoside
8. Poria Cocos
9. Bletilla striata
10. Atractyloides Macrocephala Root Powder
11. Paeonia lactiflora
12. Ampelopsis japonica
13. Dictamnus Desycarpus Root Extract
14. Tribulus terrestris
15. Yeast Ferment Extract
16. Serine
17. Glycine
18. Alanine
19. Proline
20. Aspartic acid
21. Valine
22. L-Arginine
23. or Arginine
24. Isoleucine
25. Leucine
26. Glutamic Acid
27. Sodium Lactate
28. Citric Acid
29. Hydrolyzed collagen
30. Hydrolyzed Pearl
31. 3-o-ethyl ascorbic acid
32. Ascorbyl Glucoside
33. Sodium Hyaluronate
34. Hydrolyzed elastin
35. Sodium Chondroitin Sulfate
36. Bifidus Ferment Filtrate
37. Acrylates/C10-30 alkyl acrylate crosspolymer
38. Allantoin
39. Sodium Citrate
40. Xantham Gum
41. 1,2-Hexanediol
42. EDTA-2Na

Highlights

Contains fragranceContains animal-derived

Key ingredients

SOLVENT

Aqua

保湿剂

Glycerol

HAIR CONDITIONING

Betaine

HUMECTANT

TrehaloseButylene Glycol

SKIN CONDITIONING

Yeast Ferment Extract

ANTISTATIC

SerineGlycine

Other ingredients

NicotinamideHydroquinone-alpha-D-glucopyranosidePoria CocosBletilla striataAtractyloides Macrocephala Root PowderPaeonia lactifloraAmpelopsis japonicaDictamnus Desycarpus Root ExtractTribulus terrestrisAlanineProlineAspartic acidValineL-Arginineor ArginineIsoleucineLeucineGlutamic AcidSodium LactateCitric AcidHydrolyzed collagenHydrolyzed Pearl3-o-ethyl ascorbic acidAscorbyl GlucosideSodium HyaluronateHydrolyzed elastinSodium Chondroitin SulfateBifidus Ferment FiltrateAcrylates/C10-30 alkyl acrylate crosspolymerAllantoinSodium CitrateXantham Gum1,2-HexanediolEDTA-2Na

Skim through

Ingredients explained

Aqua

Solvent, main base; microbial control is critical

Glycerol

Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives; non-comedogenic

Nicotinamide

Not decoded yet

Betaine

Betaine for mild moisturizing/surfactant; low concentration 1-2% common, high may irritate.

Trehalose

Trehalose; mild humectant and stabilizer for proteins/actives; hygroscopic, light skin feel.

Butylene Glycol

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

Hydroquinone-alpha-D-glucopyranoside

Not decoded yet

Poria Cocos

Not decoded yet

Bletilla striata

Not decoded yet

Atractyloides Macrocephala Root Powder

Not decoded yet

Paeonia lactiflora

Not decoded yet

Ampelopsis japonica

Not decoded yet

Dictamnus Desycarpus Root Extract

Not decoded yet

Tribulus terrestris

Not decoded yet

Yeast Ferment Extract

Fermented humectant, 1-5% common; monitor batch stability, patch test for sensitive skin.

Serine

Humectant amino acid, 1–3%; high water solubility, compatible with sensitive skin.

Glycine

Humectant amino acid, 1–3%; small molecule, low irritation.

Alanine

Amino acid for antistatic and conditioning; low irritation, slight salty taste at high levels

Proline

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

Aspartic acid

Amino acid humectant and conditioner, common in rinse-off products; low levels mild, high levels may shift pH

Valine

Amino acid humectant, common in amino acid cleansers and sprays; mild, suitable for all skin types

L-Arginine

L-Arginine, amphoteric amino acid for pH adjustment and skin conditioning; water-soluble, hygroscopic

or Arginine

Not decoded yet

Isoleucine

Amino acid for hair and skin conditioning and antistatic purposes; often blended; check taste if high.

Leucine

Amino acid for antistatic and skin/hair conditioning; used at low concentrations.

Glutamic Acid

Glutamic acid, non-essential amino acid humectant; high levels can be astringent, buffer needed.

Sodium Lactate

Sodium lactate for moisturizing and exfoliation; pH buffering agent

Citric Acid

Buffer and chelator at 0.1–2%; adjusts pH, may irritate sensitive skin at low pH

Hydrolyzed collagen

Hydrolyzed protein for film-forming and moisture; molecular weight limits penetration, check source for shellfish allergies

Hydrolyzed Pearl

Hydrolyzed pearl source of amino acids and minerals; humectant and skin conditioner for repair claims.

3-o-ethyl ascorbic acid

Water-soluble Vitamin C derivative; more stable than ascorbic acid, sensitive to metals and alkali.

Ascorbyl Glucoside

Stable Vitamin C derivative, antioxidant; more stable than pure ascorbic acid, releases activity slowly in neutral/basic conditions.

Sodium Hyaluronate

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

Hydrolyzed elastin

Hydrolyzed elastin, moisturizer; MW determines penetration, large MW surface conditioning.

Sodium Chondroitin Sulfate

Humectant and antistatic agent for skin and hair; biocompatible and low irritation. Large molecular weight limits deep penetration.

Bifidus Ferment Filtrate

Not decoded yet

Acrylates/C10-30 alkyl acrylate crosspolymer

Crosspolymer for thickening/film; needs neutralization to pH 7-8 to hydrate, check ion strength.

Allantoin

Skin soother at 0.5-2%; promotes cell regeneration

Sodium Citrate

Sodium citrate for buffering and chelating; adjust pH, careful with strong acid reactions.

Xantham Gum

Natural thickener and stabilizer; gel former, watch compatibility with electrolytes to prevent clarification loss

1,2-Hexanediol

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

EDTA-2Na

Not decoded yet