15% Vitamin C + PHA Serum

NeoStrata

Where to buy Possibly in stock

About this product

The NeoStrata 15% Vitamin C + PHA Serum is a serums, essence, ampoule. Our analysis of its 14 ingredients (10 low-risk) rates it Excellent (94/100). 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
Serums, Essence, Ampoules
Ingredients
14
Low-risk
10
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 2/1
Good for dry skin
Gluconolactone Caprylyl Glycol
Caution for dry skin
Sodium Hydroxide
Oily/Acne-Prone Skin No data
Sensitive Skin 2/5
Good for sensitive skin
Epigallocatechin Gallate Sodium Metabisulfite
Caution for sensitive skin
Gluconolactone Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol

Ingredients list

14 total
Lower hazard (1) Higher hazard (4)
All14 Fragrance6 Skin Conditioning5 Solvent4 Preservative4 Antioxidant4 Masking2 Buffering Agent2 Ph Adjuster2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Water
(Solvent)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
1
Gluconolactone
(Fragrance, Humectant, Solvent)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
2
Epigallocatechin Gallate
(Antioxidant)
Chrysanthemum Parthenium Flower/Leaf/Stem Juice
(Antioxidant, Skin Conditioning)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
4
A
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben

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

ASCORBIC ACID
Antioxidant, Skin Conditioning
Gluconolactone
Humectant
Epigallocatechin Gallate
Antioxidant
Chrysanthemum Parthenium Flower/Leaf/Stem Juice
Antioxidant, Skin Conditioning
Pentylene Glycol
Skin Conditioning
Sodium Metabisulfite
Antioxidant

Benefits

Fungal-acne (Malassezia) safe
Good for dry skin

Concerns

Contains paraben
May not suit sensitive skin

Ingredients explained

Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Gluconolactone
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantSolvent
Epigallocatechin Gallate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 2 Antioxidant
Chrysanthemum Parthenium Flower/Leaf/Stem Juice
Antioxidant, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A AntioxidantSkin conditioning
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Sodium Metabisulfite
Antioxidant, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A AntioxidantPreservativeReducing
Sodium Hydroxide
Denaturant, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantPh adjusterBuffering agent
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Sodium Benzoate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservativeAnticorrosiveMasking
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

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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