rau Aha Tonic
rau RAU Aha Tonic lists 13 ingredients on its label, 13 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.
Highlights
Free of alcoholFree of parabensFree of siliconesFree of sulfatesFree of mineral oilFree of essential oilsFree of formaldehyde releasersContains fragrance
Formulation view Low-concentration AHA system buffered with organic acids, plus tea extract for antioxidants. Gentle exfoliation for tolerant skin daily care. Factory view: Multiple acids require precise pH control to prevent irritation and ensure chelator efficacy.
Key ingredients
- SOLVENT
- Aqua
- HUMECTANT
- Propylene GlycolSorbitol
- BUFFERING
- Glycolic AcidSodium HydroxideCitric AcidMalic Acid
- SURFACTANT - EMULSIFYING
- Polyglyceryl-4 Caprate
Other ingredients
Tartaric AcidEthylhexylglycerinCamellia Sinensis Leaf ExtractTetrasodium Glutamate DiacetatePhenoxyethanol
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Aqua | SOLVENT | 0 · 0 | Green |
| Propylene Glycol | HUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS | 1 · 0 | Green |
| Glycolic Acid | BUFFERING | 2 · 0 | Green |
| Sodium Hydroxide | BUFFERING, DENATURANT · 限制 III/15a | 3 · – | Green |
| Polyglyceryl-4 Caprate | SURFACTANT - EMULSIFYING | 0 · – | Green |
| Sorbitol | HUMECTANT, FRAGRANCE, SKIN CONDITIONING, PERFUMING | 0 · 0 | Green |
| Citric Acid | BUFFERING, CHELATING, FRAGRANCE | 1 · 0 | Green |
| Malic Acid | BUFFERING | 1 · 0 | Green |
| Tartaric Acid | BUFFERING, FRAGRANCE | 3 · 0 | Green |
| Ethylhexylglycerin | DEODORANT, SKIN CONDITIONING | 0 · 0 | Green |
| Camellia Sinensis Leaf Extract | ANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, SKIN CONDITIONING - EMOLLIENT, HUMECTANT, FRAGRANCE, ORAL CARE, SKIN CONDITIONING, SKIN PROTECTING, TONIC, UV ABSORBER | 1 · 0 | Green |
| Tetrasodium Glutamate Diacetate | CHELATING | 0 · – | Green |
| Phenoxyethanol | ANTIMICROBIAL, PRESERVATIVE · 限制 V/29 | 1 · 0 | Yellow |
Ingredients explained
- Aqua
- Solvent, main base; microbial control is critical
- Propylene Glycol
- Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
- Glycolic Acid
- Glycolic acid for exfoliation; requires buffering at concentrations >10%, avoid combination with other acids.
- Sodium Hydroxide
- Strong base neutralizer for pH adjustment; handle with extreme care
- Polyglyceryl-4 Caprate
- Non-ionic emulsifier; biodegradable, compatibility with anionics requires check.
- Sorbitol
- Polyol humectant with strong hygroscopy; tacky at high levels, pair with occlusives; also a solvent or adjuster.
- Citric Acid
- Buffer and chelator at 0.1–2%; adjusts pH, may irritate sensitive skin at low pH
- Malic Acid
- AHA for pH buffering; mild at low conc, risk at high, control pH & total acidity
- Tartaric Acid
- Small-molecule organic acid used as buffer and antioxidant; highly irritating at high levels, caution for sensitive skin
- Ethylhexylglycerin
- Mild conditioner and preservative booster at 0.5–1%; reduces preservative load, smooth feel
- Camellia Sinensis Leaf Extract
- Green tea extract for antioxidant/astringent; contains caffeine, possible irritation in sensitive skin.
- Tetrasodium Glutamate Diacetate
- Gluconate diacetate tetrasodium chelator; replaces EDTA, improves stability against metals
- Phenoxyethanol
- Broad-spectrum preservative at ≤1%; may irritate sensitive eye areas, often paired with ethylhexylglycerin
Source: full ingredient list published on the product label, collected 2026-09-18. Ratings are our internal reading, not a regulatory conclusion. · Product page
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