Vitamin C & Caffeine Facial Cleansing Bar

Carbon Theory

Vitamin C & Caffeine Facial Cleansing Bar

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About this product

The Carbon Theory Vitamin C & Caffeine Facial Cleansing Bar is a cleanser. Our analysis of its 19 ingredients (13 low-risk) rates it Excellent (93/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Cleansers
Ingredients
19
Low-risk
13
Fragrance
Contains fragrance
Origin
United Kingdom
Data updated
May 2026

The evidence

Quick Product Notes

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

PH Level

(Know the PH? Submit it here! )

N/A - No submissions yet

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 1/4
Good for dry skin
Glycerin
Caution for dry skin
Maltodextrin Sodium Palmate Sodium Palm Kernelate Glycerin
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Sodium Ascorbyl Phosphate
Sensitive Skin 2/8
Good for sensitive skin
Sodium Ascorbyl Phosphate Glycerin
Caution for sensitive skin
Sodium Citrate Sodium Chloride Caffeine Glycerin Citric Acid Linalool Citronellol Limonene

Ingredients list

19 total
Lower hazard (1) Higher hazard (6)
All19 Skin Conditioning6 Fragrance6 Masking6 Viscosity Controlling4 Solvent3 Perfuming3 Ph Adjuster2 Film Forming2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
A
Sodium Palmate
(Sufactant, Emulsifying, Surfactant, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Sodium Palm Kernelate
(Sufactant, Emulsifying, Surfactant, Viscosity Increasing Agent, Viscosity Controlling)
1
Water
(Solvent)
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
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
1
A
Sodium Ascorbyl Phosphate
(Antioxidant)
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
CI 77891
(Colorant)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
1
Tetrasodium Glutamate Diacetate
(Chelating Agent)
PARFUM
(Fragrance, Perfuming)
1
A
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
2
CI 15510
(Cosmetic Colorant)
1
Caffeine
(Fragrance, Skin Conditioning, Masking)
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
1
Paullinia Cupana Seed Extract
(Skin Conditioning, Tonic)

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

Vitamin C
Brightens, evens tone, and supports collagen.
Antioxidants
Shields skin from free radical damage.

Benefits

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

Concerns

Contains eu allergen
Not fungal acne (malassezia) safe
May not suit dry skin
May not suit sensitive skin

Ingredients explained

Sodium Palmate
Sufactant, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A SufactantEmulsifyingSurfactantViscosity increasing agentViscosity controlling
Sodium Palm Kernelate
Sufactant, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A SufactantEmulsifyingSurfactantViscosity increasing agentViscosity controlling
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Sodium Ascorbyl Phosphate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antioxidant
Butyrospermum Parkii Butter
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
CI 77891
Colorant
Limited public safety data.Read moreShow less
EWG N/A Colorant
Sodium Citrate
Ph adjuster, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Ph adjusterBuffering agentChelatingMasking
Tetrasodium Glutamate Diacetate
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agent
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Maltodextrin
Absorbent, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentBinding agentEmulsion stabilisingFilm formingHair conditioningSkin conditioningSuspending agent - nonsurfactantBinding
Sodium Chloride
Bulking agent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 Bulking agentMaskingOral care agentViscosity controlling
CI 15510
Cosmetic colorant
Low-hazard ingredient.Read moreShow less
EWG 2 Cosmetic colorant
Caffeine
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningMasking
Paullinia Cupana Seed Extract
Skin conditioning, Tonic
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningTonic
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
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
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
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Citronellol
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens

How to use

How to use

  • 1 Where it fits: Use as the first step, on clean hands, before the rest of your routine.
  • 2 Morning & evening: Suitable for both AM and PM use.

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

Trust & honesty

Effective levels — general guide

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

Vitamin C (ascorbic) 5–20%

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.

Sodium Ascorbyl Phosphate

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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