Clarifying Probiotic Mineral Tonic
The Kerstin Florian Clarifying Probiotic Mineral Tonic is a toner. Our analysis of its 43 ingredients (28 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Kerstin Florian Clarifying Probiotic Mineral Tonic is a toner. Our analysis of its 43 ingredients (28 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Lactobacillus Ferment
(Skin Conditioning) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Vaccinium Myrtillus Fruit Extract
(Skin Conditioning) |
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Saccharum Officinarum Extract
(Moisturising, Skin Conditioning) |
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Acer saccharum extract
(Skin Conditioning) |
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Citrus Aurantium Dulcis Fruit Extract
(Fragrance, Skin Conditioning) |
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Citrus Limon Fruit Extract
(Fragrance, Skin Conditioning) |
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Oryza sativa extract
(Abrasive, Absorbent, Bulking, Hair Conditioning, Skin Conditioning) |
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Ascophyllum Nodosum Extract
(Skin Conditioning) |
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Leuconostoc Ferment Filtrate
(Anti Seborrheic, Antimicrobial, Hair Conditioning, Skin Conditioning) |
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Superoxide Dismutase
(Reducing, Skin Conditioning, Antioxidant) |
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Soybean Peroxidase
(Antioxidant, Skin Conditioning) |
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Manganese Gluconate
(Skin Conditioning) |
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Zinc PCA
(Skin Conditioning, Humectant) |
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Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Copper Gluconate
(Skin Conditioning, Skin Protecting) |
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Rosa Canina Fruit Extract
(Astringent, Skin Conditioning, Tonic) |
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Ulva Lactuca Extract
(Skin Conditioning, Skin Protecting) |
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Phyllanthus Emblica Fruit Extract
(Humectant, Skin Conditioning) |
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Terminalia Bellerica Fruit Extract
(Antimicrobial Agent, Cosmetic Astringent, Skin Conditioning, Emollient) |
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Terminalia Chebula Fruit Extract
(Skin Conditioning) |
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Spirulina Platensis Extract
(Skin Protecting) |
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Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
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Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Tartaric Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Malic Acid
(Fragrance, Ph Adjuster, Buffering Agent) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Sodium Phytate
(Chelating Agent, Oral Care Agent) |
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Caprylyl/Capryl Glucoside
(Cleansing, Foaming, Surfactant) |
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Potassium Hydroxide
(Ph Adjuster, Buffering Agent) |
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Potassium Sorbate
(Fragrance, Preservative) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Benzoic Acid
(Fragrance, Ph Adjuster, Preservative, Bulking Agent, Masking) |
Bad for Sensitive Skin
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PARFUM
(Fragrance, Perfuming) |
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Mentha Arvensis Leaf Oil
(Masking) |
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Citrus Limon Peel Oil
(Fragrance, Perfuming, Skin Conditioning) |
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Lavandula Hybrida Oil
(Emollient) |
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Mentha Piperita Oil
(Fragrance, Perfuming, Refreshing, Tonic) |
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How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Lactic Acid, Glycolic Acid, Tartaric Acid, Malic Acid
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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