Biobrew Fermented Strengthening Serum
The Rootist Biobrew Fermented Strengthening Serum is a misc. Our analysis of its 47 ingredients (29 low-risk) rates it Excellent (89/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Rootist Biobrew Fermented Strengthening Serum is a misc. Our analysis of its 47 ingredients (29 low-risk) rates it Excellent (89/100). Based on its ingredients, it looks well-suited to 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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Lactobacillus
(Skin Conditioning) |
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C13-15 Alkane
(Solvent) |
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Dioctyldodecyl Dodecanedioate
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Emollient) |
|
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Ethylhexyl Pelargonate
(Emollient) |
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Water
(Solvent) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
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1,2-Hexanediol
(Solvent) |
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Hydrolyzed Yeast Protein
(Hair Conditioning, Skin Conditioning) |
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Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning) |
|
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Sphingomonas Ferment Extract
(Skin Conditioning) |
|
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Inulin
(Humectant, Skin Conditioning) |
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Hydroxypropylammonium Gluconate
(Hair Conditioning, Humectant) |
|
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Alpha-Glucan Oligosaccharide
(Cleansing, Skin Conditioning, Smoothing) |
|
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Saccharide Isomerate
(Humectant) |
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Hydroxypropylgluconamide
(Hair Conditioning, Humectant) |
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Sodium Acetylated Hyaluronate
(Humectant) |
|
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
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Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning) |
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Hydrolyzed Sodium Hyaluronate
(Skin Conditioning) |
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Caesalpinia Spinosa Fruit Pod Extract
(Hair Conditioning, Hair Waving Or Straightening) |
|
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Helianthus Annuus Sprout Extract
(Skin Conditioning) |
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Moringa Oleifera Seed Oil
(Emollient, Skin Conditioning) |
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Melia Azadirachta Extract
(Skin Conditioning) |
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Coccinia Indica Fruit Extract
(Skin Conditioning) |
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Eclipta Prostrata Extract
(Skin Conditioning) |
|
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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Heptyl Glucoside
(Surfactant) |
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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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Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding) |
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Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant) |
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Sodium Phytate
(Chelating Agent, Oral Care Agent) |
|
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Potassium Sorbate
(Fragrance, Preservative) |
|
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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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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
|
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Citral
(Flavoring Agent, Fragrance, Masking) |
Allergens
|
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Citronellol
(Fragrance, Masking) |
Allergens
|
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Geraniol
(Fragrance, Masking, Tonic) |
Allergens
|
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Hydroxycitronellal
(Fragrance, Masking) |
Allergens
|
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
|
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PARFUM
(Fragrance, Perfuming) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
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.
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
Tetrahexyldecyl Ascorbate
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Glycolic Acid, Tartaric 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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