raiku Brightening Serum
raiku Raiku Brightening Serum lists 25 ingredients on its label, 23 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
- Niacinamide
- Glycerin
- Butylene Glycol
- Cyclohexasiloxane
- Phenoxyethanol
- Allantoin
- Oryza Sativa Bran
- Sodium Polyacryloyldimethyl Taurate
- Imidazolidinyl Urea
- Propylene Glycol
- Menthyl Safflowerseedate
- Triethanolamine
- Hydrogenated Polydecene
- Sodium Lactate
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Panthenol
- Dimethicone Crosspolymer
- Trideceth-10
- Dimethicone/Vinyl Dimethicone Crosspolymer
- Glycyrrhiza Glabra Root Extract
- Chamomilla Recutita Extract
- Tromethamine
- Dimethiconol
- Cyclotetrasiloxane
Highlights
Free of alcoholFree of parabensFree of sulfatesContains siliconesContains formaldehyde releasersContains fragranceContains mineral oilContains essential oils
Key ingredients
- SOLVENT
- Aqua
- SMOOTHING
- Niacinamide
- DENATURANT
- Glycerin
- HUMECTANT
- Butylene Glycol
- SKIN CONDITIONING - EMOLLIENT
- Cyclohexasiloxane
- ANTIMICROBIAL
- Phenoxyethanol
- SKIN CONDITIONING
- Allantoin
- ABRASIVE
- Oryza Sativa Bran
Other ingredients
Sodium Polyacryloyldimethyl TaurateImidazolidinyl UreaPropylene GlycolMenthyl SafflowerseedateTriethanolamineHydrogenated PolydeceneSodium LactateAcrylates/C10-30 Alkyl Acrylate CrosspolymerPanthenolDimethicone CrosspolymerTrideceth-10Dimethicone/Vinyl Dimethicone CrosspolymerGlycyrrhiza Glabra Root ExtractChamomilla Recutita ExtractTromethamineDimethiconolCyclotetrasiloxane
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Aqua | SOLVENT | 0 · 0 | Green |
| Niacinamide | SMOOTHING | 0 · 0 | Green |
| Glycerin | DENATURANT, HAIR CONDITIONING, HUMECTANT, ORAL CARE, SKIN PROTECTING, SOLVENT, VISCOSITY CONTROLLING, PERFUMING, FRAGRANCE, SKIN CONDITIONING - HUMECTANT | 0 · 0 | Green |
| Butylene Glycol | HUMECTANT, FRAGRANCE, SKIN CONDITIONING, SOLVENT, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Cyclohexasiloxane | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SOLVENT | 0 · 0 | Green |
| Phenoxyethanol | ANTIMICROBIAL, PRESERVATIVE · 限制 V/29 | 1 · 0 | Yellow |
| Allantoin | SKIN CONDITIONING, SKIN PROTECTING, SOOTHING | 0 · 0 | Green |
| Oryza Sativa Bran | ABRASIVE, BULKING | 1 · 0 | Green |
| Sodium Polyacryloyldimethyl Taurate | EMULSION STABILISING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Imidazolidinyl Urea | PRESERVATIVE · 限制 V/27 | 1 · – | Yellow |
| Propylene Glycol | HUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS | 1 · 0 | Green |
| Menthyl Safflowerseedate | Not decoded yet | — | — |
| Triethanolamine | BUFFERING, SURFACTANT - EMULSIFYING, FRAGRANCE, SURFACTANT - CLEANSING · 限制 III/62 | 2 · – | Yellow |
| Hydrogenated Polydecene | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, FRAGRANCE, SKIN CONDITIONING, SOLVENT, PERFUMING | 0 · 0 | Green |
| Sodium Lactate | BUFFERING, HUMECTANT, KERATOLYTIC | 0 · – | Green |
| Acrylates/C10-30 Alkyl Acrylate Crosspolymer | EMULSION STABILISING, FILM FORMING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Panthenol | ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING | 0 · 0 | Green |
| Dimethicone Crosspolymer | EMULSION STABILISING, HAIR FIXING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Trideceth-10 | Not decoded yet | — | — |
| Dimethicone/Vinyl Dimethicone Crosspolymer | SKIN CONDITIONING, VISCOSITY CONTROLLING | 0 · 0 | Green |
| Glycyrrhiza Glabra Root Extract | BLEACHING, SKIN CONDITIONING - EMOLLIENT, SKIN CONDITIONING, SMOOTHING, SOOTHING, PERFUMING | — | Green |
| Chamomilla Recutita Extract | SKIN CONDITIONING | 0 · 0 | Green |
| Tromethamine | BUFFERING, FRAGRANCE · 限制 III/61 | 0 · – | Green |
| Dimethiconol | ANTIFOAMING, SKIN CONDITIONING - EMOLLIENT, MOISTURISING | 0 · 3 | Green |
| Cyclotetrasiloxane | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SOLVENT · 限制 II/1388 | 0 · 0 | Green |
Ingredients explained
- Aqua
- Solvent, main base; microbial control is critical
- Niacinamide
- Niacinamide at 2–5%; improves texture, controls oil, brightens; high levels may cause sensitivity
- Glycerin
- Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives
- Butylene Glycol
- Polyol humectant and solvent at 1–5%; aids solubilization, light feel
- Cyclohexasiloxane
- Volatile cyclic silicone evaporating without residue; ensure compliance with EU limits on cyclic polydimethylsiloxanes, use octamer
- Phenoxyethanol
- Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin
- Allantoin
- Skin soother at 0.5-2%; promotes cell regeneration
- Oryza Sativa Bran
- Rice bran; physical exfoliant, adjust particle roughness to avoid barrier damage.
- Sodium Polyacryloyldimethyl Taurate
- Sodium polyacryloyldimethyl taurate for emulsion stabilization and thickening; ionic polymer, check ion compatibility.
- Imidazolidinyl Urea
- Formaldehyde releaser in preservative systems; monitor for formaldehyde and urea sensitivity issues.
- Propylene Glycol
- Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
- Menthyl Safflowerseedate
- Not decoded yet
- Triethanolamine
- Triethanolamine for buffering; restricted, limit concentration to avoid high pH and irritation
- Hydrogenated Polydecene
- Hydrogenated polydecene, light mineral oil alternative, low comedogenic; silky, non-greasy.
- Sodium Lactate
- Sodium lactate for moisturizing and exfoliation; pH buffering agent
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Crosspolymer for thickening/film; needs neutralization to pH 7-8 to hydrate, check ion strength.
- Panthenol
- Panthenol (vitamin B5) at 1–5%; moisturizing and reparative, supports barrier recovery
- Dimethicone Crosspolymer
- Crosslinked silicone polymer providing silkiness and viscosity control; for hair and skin; inert but hard to biodegrade.
- Trideceth-10
- Not decoded yet
- Dimethicone/Vinyl Dimethicone Crosspolymer
- Crosslinked silicone thickener at 0.5-2%; silky/matte feel, non-comedogenic, partial oil phase incompatibility, use co-solvent/pre-emulsification.
- Glycyrrhiza Glabra Root Extract
- Liquorice root extract for soothing and brightening; batch variability, watch polyphenol interactions
- Chamomilla Recutita Extract
- Chamomile, classic soothing/anti-inflammatory; potential allergen for some, contains flavonoids.
- Tromethamine
- pH adjuster, alkaline; precise dosing required
- Dimethiconol
- Dimethiconol; silicone emollient providing silky feel and reducing friction; moderate comedogenicity, avoid excess.
- Cyclotetrasiloxane
- Volatile silicone providing slip; D4 is restricted in EU rinse-off products and requires labeling for leave-on use.
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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