Firming Up Neck Serum

NOT4U

Where to buy Possibly in stock

About this product

The NOT4U Firming Up Neck Serum is a serums, essence, ampoule. Our analysis of its 25 ingredients (17 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry 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
Serums, Essence, Ampoules
Ingredients
25
Low-risk
17
Fragrance
Contains fragrance
Origin
South Korea

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 5/2
Good for dry skin
Gluconolactone Acetyl Octapeptide-3 Caprylyl Glycol Butylene Glycol Glycerin
Caution for dry skin
Sorbitan Isostearate Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 1/5
Good for sensitive skin
Glycerin
Caution for sensitive skin
Gluconolactone Butylene Glycol Glycerin Tromethamine Sodium Benzoate

Ingredients list

25 total
Lower hazard (1) Higher hazard (3)
All25 Skin Conditioning13 Fragrance8 Solvent6 Humectant6 Hair Conditioning4 Viscosity Controlling3 Masking3 Emulsion Stabilising3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Methylpropanediol
(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
Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
1
A
1,2-Hexanediol
(Solvent)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
Carthamus Tinctorius Oleosomes
(Emulsion Stabilising, Skin Conditioning, Skin Conditioning Emollient)
1
Bakuchiol
(Cosmetic Biocide, Antimicrobial)
Brassica Oleracea Gemmifera Extract
(Astringent)
Brassica Oleracea Italica Extract
(Astringent)
Vaccinium Angustifolium Fruit Extract
(Skin Protecting, Soothing)
Prunus Persica Flower Extract
(Moisturising, Skin Conditioning)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
2
A
Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
1
Adenosine
(Skin Conditioning)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Gluconolactone
(Fragrance, Humectant, Solvent)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
Acetyl Octapeptide-3
(Humectant, Skin Conditioning)
PARFUM
(Fragrance, Perfuming)

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

Glycerin
Humectant, Skin Protecting
Helianthus Annuus Seed Oil
Skin Conditioning
Niacinamide
Skin Conditioning
Panthenol
Skin Conditioning
Carthamus Tinctorius Oleosomes
Skin Conditioning
Brassica Oleracea Gemmifera Extract
Astringent

Benefits

Good for dry skin

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Methylpropanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Helianthus Annuus Seed Oil
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSkin conditioning emollient
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Carthamus Tinctorius Oleosomes
Emulsion stabilising, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Emulsion stabilisingSkin conditioningSkin conditioning emollient
Bakuchiol
Cosmetic biocide, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 1 Cosmetic biocideAntimicrobial
Brassica Oleracea Gemmifera Extract
Astringent
Limited public safety data.Read moreShow less
EWG N/A Astringent
Brassica Oleracea Italica Extract
Astringent
Limited public safety data.Read moreShow less
EWG N/A Astringent
Vaccinium Angustifolium Fruit Extract
Skin protecting, Soothing
Limited public safety data.Read moreShow less
EWG N/A Skin protectingSoothing
Prunus Persica Flower Extract
Moisturising, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A MoisturisingSkin conditioning
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingViscosity controlling
Tromethamine
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A FragrancePh adjusterBuffering agentMasking
Adenosine
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
+ 7 more — see the full ingredients list above
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
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 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.

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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