open-formula Open Formula Buffered Lactic Acid Peel (4% Buffered Lactic Acid)
open-formula Open Formula Buffered Lactic Acid Peel (4% Buffered Lactic Acid) 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 fragranceFree of parabensFree of siliconesFree of sulfatesFree of mineral oilFree of essential oilsFree of formaldehyde releasersContains alcoholContains EU-26 allergens
Key ingredients
- ANTIPLAQUE
- Water
- ASTRINGENT
- Sd Alcohol 40-BHamamelis Virginiana Leaf Water
- BUFFERING
- Lactic AcidPotassium LactateSodium Lactate
- ANTIFOAMING
- Alcohol
- CHELATING
- Sodium Gluconate
Other ingredients
Benzyl AlcoholGluconolactoneSodium BenzoateSodium PCADisodium EDTA
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Water | ANTIPLAQUE, SKIN CONDITIONING, SOLVENT | 0 · 0 | Green |
| Sd Alcohol 40-B | ASTRINGENT, SOLVENT, VISCOSITY CONTROLLING | 4 · 0 | Yellow |
| Lactic Acid | BUFFERING, HUMECTANT, SKIN CONDITIONING | 1 · 0 | Green |
| Potassium Lactate | BUFFERING, HUMECTANT, SKIN CONDITIONING | 0 · 0 | Green |
| Hamamelis Virginiana Leaf Water | ASTRINGENT, SKIN CONDITIONING | 1 · – | Green |
| Alcohol | ANTIFOAMING, ANTIMICROBIAL, ASTRINGENT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING | 1 · 0 | Yellow |
| Sodium Lactate | BUFFERING, HUMECTANT, KERATOLYTIC | 0 · – | Green |
| Sodium Gluconate | CHELATING, SKIN CONDITIONING | 0 · 0 | Green |
| Benzyl Alcohol | PRESERVATIVE, SOLVENT, VISCOSITY CONTROLLING, PERFUMING · 限制 III/45 and V/34 | 1 · 0 | Yellow |
| Gluconolactone | CHELATING, SKIN CONDITIONING | 2 · 1 | Green |
| Sodium Benzoate | ANTICORROSIVE, FRAGRANCE, PRESERVATIVE · 限制 V/1 | 0 · – | Yellow |
| Sodium PCA | ANTISTATIC, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING | – · 0 | Green |
| Disodium EDTA | CHELATING, VISCOSITY CONTROLLING | 0 · 0 | Green |
Ingredients explained
- Water
- Primary solvent and base; requires preservative system to prevent microbial growth
- Sd Alcohol 40-B
- Denatured solvent for fragrance/oil dilution, contains trace isopropyl thiol (sensitizer), irritating at high levels
- Lactic Acid
- AHA pH adjuster at 0.5-5%; exfoliation/humectancy, mild at low conc., irritating at high, avoid conflict with alkaline preservatives.
- Potassium Lactate
- Buffer and humectant at 1–5%; adjusts pH to 4.5–5.5, boosts moisture, low irritancy.
- Hamamelis Virginiana Leaf Water
- Astringent/soothing water with tannins; aqueous, high preservation needs; tannins may irritate
- Alcohol
- Ethanol for solubility/drying at 5-15%; high conc. is drying/irritating, avoid lip/eye, low residue, balance with humectants.
- Sodium Lactate
- Sodium lactate for moisturizing and exfoliation; pH buffering agent
- Sodium Gluconate
- Mild chelator, aids skin conditioning; typically used at low levels as auxiliary
- Benzyl Alcohol
- Mild preservative/solvent at 0.5-1.0%; EU allergen (labeling required), irritation risk if concentrated, avoid in infant/highly sensitive skin.
- Gluconolactone
- Multifunctional agent for chelation and permeation; acidic, may irritate at high levels, buffer recommended.
- Sodium Benzoate
- Preservative booster, effective below pH 4.5; combinable with sorbates
- Sodium PCA
- Sodium PCA, NMF component, 1-10% humectant; salty/tacky at high levels.
- Disodium EDTA
- Chelating agent at 0.05–0.5%; sequesters metal ions for stability, boosts preservative efficacy
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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