Time Rewind Retinol System

Exponent Beauty

Where to buy Possibly in stock

About this product

The Exponent Beauty Time Rewind Retinol System is a serums, essence, ampoule. Our analysis of its 37 ingredients (31 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
37
Low-risk
31
Fragrance
Fragrance-free
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 8/5
Good for dry skin
Betaine Sodium Acetylated Hyaluronate Sodium Hyaluronate Crosspolymer Sodium Hyaluronate Glycerin Tricaprylin Pantolactone Dimethicone
Caution for dry skin
Dimethicone Crosspolymer Distarch Phosphate Calcium Silicate Glycerin Silica
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Retinol
Sensitive Skin 7/7
Good for sensitive skin
Glycerin Quercetin Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate Hydroxyacetophenone Dimethicone Tocopheryl Acetate Allantoin
Caution for sensitive skin
Cellulose Gum Glycerin Tricaprylin Citric Acid Potassium Sorbate Phenoxyethanol Retinol

Ingredients list

37 total
Lower hazard (1) Higher hazard (9)
All37 Skin Conditioning22 Viscosity Controlling9 Humectant8 Fragrance7 Solvent7 Emulsion Stabilising5 Skin Protecting5 Film Forming4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
1
A
Dimethicone Crosspolymer
(Emulsion Stabilising, Hair Fixing, Suspending Agent Nonsurfactant, Viscosity Increasingagent Nonaqueous, Viscosity Controlling)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
1
A
Calcium Silicate
(Absorbent, Bulking Agent, Opacifying, Pearlescent, Viscosity Controlling)
1
A
Cellulose Acetate Butyrate
(Film Forming)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
Distarch Phosphate
(Anticaking Agent, Binding Agent, Absorbent, Binding)
1
A
Tricaprylin
(Fragrance, Emollient, Masking, Skin Conditioning, Solvent)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
9
A
Retinol
(Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Quercetin
(Antioxidant, Skin Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
A
Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
(Antioxidant)
1
Water
(Solvent)
lavandula angustifolia oil
(Fragrance, Tonic)
2
Mica
(Cosmetic Colorant, Opacifying)
CI 77891
(Colorant)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
3
A
PEG-8 Dimethicone
(Hair Conditioning, Skin Conditioning)
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
1,2-Hexanediol
(Solvent)
1
Sodium Acetylated Hyaluronate
(Humectant)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning)
Hydrolyzed Sodium Hyaluronate
(Skin Conditioning)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
Pantolactone
(Humectant)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Cellulose Gum
(Binding Agent, Emulsion Stabilising, Film Forming, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling)
1
Hydroxyacetophenone
(Antioxidant)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Antioxidants
Shields skin from free radical damage.
Hyaluronic Acid
Hydrates by attracting and holding water.
AHA
Exfoliates skin for a brighter complexion.
Retinoid
Visibly reduces the signs of aging.
Vitamin E
Protects skin and soothes irritation.
Exfoliators
Removes dead skin cells to smoothe texture.
Show all 6 key ingredients

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Scar HealingImproves the look of marks and scars.
Reduces IrritationEases discomfort and supports skin resilience.
Redness ReducingSoothes visible redness and calms irritation.
Anti-AgingSoftens lines and helps skin look youthful.
BrighteningRestores radiance to dull, tired skin.
Good For Oily SkinBalances oil and helps reduce shine.

Concerns

Contains paraben
Contains silicone
Not fungal acne (malassezia) safe
Retinol — higher EWG

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 →

Ingredients explained

Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Dimethicone Crosspolymer
Emulsion stabilising, Hair fixing
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingHair fixingSuspending agent - nonsurfactantViscosity increasingagent - nonaqueousViscosity controlling
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Calcium Silicate
Absorbent, Bulking agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentBulking agentOpacifyingPearlescentViscosity controlling
Cellulose Acetate Butyrate
Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Film forming
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Distarch Phosphate
Anticaking agent, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 Anticaking agentBinding agentAbsorbentBinding
Tricaprylin
Fragrance, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceEmollientMaskingSkin conditioningSolvent
Butyrospermum Parkii Butter
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
Quercetin
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antioxidant
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
lavandula angustifolia oil
Fragrance, Tonic
Limited public safety data.Read moreShow less
EWG N/A FragranceTonic
+ 13 more — see the full ingredients list above
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Retinol
Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 9 CIR A Skin conditioning Bad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening: Use at night — start 2–3× a week and build up as your skin tolerates it.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinol)

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.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Retinoids (Vitamin A) 0.01–1%

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.

Retinol

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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