Serum Facial NC-10

Principia

Where to buy Possibly in stock

About this product

The Principia Serum Facial NC-10 is a emulsion. Our analysis of its 9 ingredients (8 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
9
Low-risk
8
Fragrance
Fragrance-free
Origin
Brazil

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 3/1
Good for dry skin
Ethoxydiglycol Caprylyl Glycol Zinc PCA
Caution for dry skin
Xanthan Gum
Oily/Acne-Prone Skin No data
Sensitive Skin 0/2
Caution for sensitive skin
Ethoxydiglycol Phenoxyethanol

Ingredients list

9 total
Lower hazard (1) Higher hazard (4)
All9 Skin Conditioning7 Solvent4 Humectant3 Viscosity Decreasing Agent3 Viscosity Controlling3 Emulsion Stabilising2 Fragrance2 Hair Conditioning2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Ethoxydiglycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Humectant, Perfuming)
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
Zinc PCA
(Skin Conditioning, Humectant)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)

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

Xanthan Gum
Skin Conditioning
Ethoxydiglycol
Humectant
Zinc PCA
Skin Conditioning, Humectant
Niacinamide
Skin Conditioning
Caprylyl Glycol
Skin Conditioning, Emollient

Benefits

Fungal-acne (Malassezia) safe
Good for dry skin

Concerns

Contains paraben
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Ethoxydiglycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentHumectantPerfuming
Dimethyl Isosorbide
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Zinc PCA
Skin conditioning, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 Skin conditioningHumectant
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

How to use

How to use

  • 1 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.

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

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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