C25 Super Booster

Paula's Choice

Where to buy Possibly in stock

About this product

The Paula's Choice C25 Super Booster is a treatment. Our analysis of its 8 ingredients (7 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Treatments
Ingredients
8
Low-risk
7
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 Minimal Ingredients

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 3/0
Good for dry skin
Ethylhexyl Hydroxystearate Dimethicone Cyclopentasiloxane
Oily/Acne-Prone Skin No data
Sensitive Skin 1/0
Good for sensitive skin
Dimethicone

Ingredients list

8 total
Lower hazard (1) Higher hazard (3)
All8 Skin Conditioning5 Emollient3 Solvent2 Film Forming2 Skin Protecting2 Viscosity Controlling2 Hair Conditioning1 Antioxidant1
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
1
B
Ethylhexyl Hydroxystearate
(Skin Conditioning, Emollient)
1
Polysilicone-11
(Film Forming)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
Polymethylsilsesquioxane
(Opacifying)
1
A
Disteardimonium Hectorite
(Stabilising, Viscosity Controlling)
1
A
Propylene Carbonate
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)

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

Cyclopentasiloxane
Skin Conditioning, Emollient
ASCORBIC ACID
Antioxidant, Skin Conditioning
Ethylhexyl Hydroxystearate
Skin Conditioning, Emollient
Dimethicone
Skin Protecting, Emollient

Benefits

Fungal-acne (Malassezia) safe
Good for dry skin
Good for sensitive skin

Concerns

Contains silicone

Ingredients explained

ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Ethylhexyl Hydroxystearate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollient
Polysilicone-11
Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Film forming
Polymethylsilsesquioxane
Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 Opacifying
Disteardimonium Hectorite
Stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A StabilisingViscosity controlling
Propylene Carbonate
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A SolventViscosity decreasing agentViscosity controlling
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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.

ASCORBIC 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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