The Golden Rule - Retinoid/Retinol Serum
The Route Beauty The Golden Rule - Retinoid/Retinol Serum is a serums, essence, ampoule. Our analysis of its 47 ingredients (31 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
The Route Beauty The Golden Rule - Retinoid/Retinol Serum is a serums, essence, ampoule. Our analysis of its 47 ingredients (31 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry 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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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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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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Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Hydroxypinacolone Retinoate
(Skin Conditioning) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Hydrolyzed Sodium Hyaluronate
(Skin Conditioning) |
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Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning) |
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Sodium Acetylated Hyaluronate
(Humectant) |
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Magnesium Carboxymethyl Beta-Glucan
(Skin Conditioning) |
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Tremella Fuciformis Sporocarp Extract
(Antioxidant, Hair Conditioning, Humectant, Skin Conditioning) |
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Rheum Rhaponticum Root Extract
(Skin Conditioning) |
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Zingiber Officinale Root Extract
(Fragrance, Perfuming, Skin Conditioning, Tonic) |
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Solanum Lycopersicum Fruit Extract
(Antioxidant) |
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Albatrellus Confluens Extract
(Humectant, Skin Conditioning) |
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Orobanche Rapum Extract
(Skin Protecting) |
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Hydroxymethoxyphenyl Decanone
(Skin Conditioning) |
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Hydroxyphenyl Propamidobenzoic Acid
(Skin Conditioning) |
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Bisabolol
(Fragrance, Skin Conditioning, Soothing) |
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Lysolecithin
(Emulsifying, Surfactant) |
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Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling) |
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
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Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
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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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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Pullulan
(Binding Agent, Film Forming, Binding) |
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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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Potassium Sorbate
(Fragrance, Preservative) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Caprylhydroxamic Acid
(Chelating Agent) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Chloroacetic Acid
(Keratolytic) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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Tin Oxide
(Abrasive, Bulking Agent, Opacifying, Viscosity Controlling) |
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CI 77891
(Colorant) |
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CI 77491
(Colorant, Cosmetic Colorant) |
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CI 77480
(Colorant) |
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.
Hydroxypinacolone Retinoate
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
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Glycolic 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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