Microbioma Calming Serum
The RVB LAB Microbioma Calming Serum is a serums, essence, ampoule. Our analysis of its 39 ingredients (30 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The RVB LAB Microbioma Calming Serum is a serums, essence, ampoule. Our analysis of its 39 ingredients (30 low-risk) rates it Excellent (100/100). 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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Water
(Solvent) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Potassium Cetyl Phosphate
(Emulsifying, Surfactant) |
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Erythritol
(Humectant, Moisturising) |
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Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling) |
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Acetyl Glucosamine
(Skin Conditioning) |
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Sodium Polyglutamate
(Hair Conditioning, Skin Conditioning, Humectant) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Glycyrrhetinic Acid
(Skin Conditioning) |
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Lactobacillus
(Skin Conditioning) |
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Alpha-Glucan Oligosaccharide
(Cleansing, Skin Conditioning, Smoothing) |
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Orobanche Rapum Extract
(Skin Protecting) |
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Polymnia Sonchifolia Root Juice
(Skin Conditioning) |
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Rosmarinyl Glucoside
(Antioxidant, Skin Conditioning) |
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Gallyl Glucoside
(Antioxidant, Skin Conditioning) |
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Caffeyl Glucoside
(Antioxidant, Skin Conditioning) |
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Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Ethyl Linolenate
(Fragrance, Skin Conditioning, Emollient) |
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Ethyl Linoleate
(Fragrance, Skin Conditioning, Emollient, Perfuming) |
Fungal Acne Trigger
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Ethyl Oleate
(Fragrance, Hair Conditioning, Skin Conditioning, Emollient, Perfuming) |
Fungal Acne Trigger
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Arachidyl Propionate
(Skin Conditioning, Emollient) |
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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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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Sodium Gluconate
(Chelating Agent, Skin Conditioning) |
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
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Octyldodecanol
(Fragrance, Skin Conditioning, Emollient, Perfuming, Solvent) |
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Haematococcus Pluvialis Extract
(Antioxidant) |
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PARFUM
(Fragrance, Perfuming) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Acetyl Heptapeptide-4
(Humectant, Skin Conditioning) |
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
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1,2-Hexanediol
(Solvent) |
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Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Tropolone
(Skin Conditioning) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinyl Palmitate
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.
Ascorbyl Palmitate
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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