5% Niacinamide Whitening & Spot-Lightening Serum

Watercome

5% Niacinamide Whitening & Spot-Lightening Serum

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About this product

The Watercome 5% Niacinamide Whitening & Spot-Lightening Serum is a serums, essence, ampoule. Our analysis of its 33 ingredients (25 low-risk) rates it Excellent (99/100). 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
33
Low-risk
25
Fragrance
Contains fragrance
Origin
China

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 9/3
Good for dry skin
Ectoin Inositol Butylene Glycol Glycerin Propylene Glycol Hordeum Vulgare Extract Dimethicone Lecithin Raspberryketone Glucoside
Caution for dry skin
Glycerin Silica Lecithin
Oily/Acne-Prone Skin No data
Sensitive Skin 6/7
Good for sensitive skin
Anogeissus Leiocarpus Bark Extract Glycerin Phenylethyl Resorcinol Hydroxyacetophenone Dimethicone Allantoin
Caution for sensitive skin
Dipropylene Glycol Butylene Glycol Glycerin Propylene Glycol Taurine Phenoxyethanol Raspberryketone Glucoside

Ingredients list

33 total
Lower hazard (1) Higher hazard (4)
All33 Skin Conditioning22 Fragrance9 Solvent7 Viscosity Controlling7 Skin Protecting7 Humectant7 Hair Conditioning4 Viscosity Decreasing Agent4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
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
rosmarinus officinalis extract
(Antimicrobial, Refreshing, Tonic)
3
B
Sodium Acrylates Copolymer
(Binding Agent, Film Forming, Viscosity Increasing Agent, Binding, Opacifying, Viscosity Controlling)
1
Hydroxyethylpiperazine Ethane Sulfonic Acid
(Buffering Agent)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Taurine
(Fragrance, Buffering Agent)
1
Hydroxyacetophenone
(Antioxidant)
Bisabolol
(Fragrance, Skin Conditioning, Soothing)
PARFUM
(Fragrance, Perfuming)
1
Inositol
(Antistatic Agent, Hair Conditioning, Humectant)
Raspberryketone Glucoside
(Humectant, Masking)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
Anogeissus Leiocarpus Bark Extract
(Skin Protecting)
Rosmarinus Officinalis Leaf Oil
(Fragrance, Skin Conditioning)
1
Hordeum Vulgare Extract
(Emollient, Skin Conditioning)
1
Phenylethyl Resorcinol
(Antioxidant)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
1
Mauritia Flexuosa Fruit Oil
(Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
1
Ectoin
(Buffering Agent, Skin Conditioning, Emollient)
Lactobacillus/Soymilk Ferment Filtrate
(Skin Conditioning)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, 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

Niacinamide
Skin Conditioning
Dimethicone
Skin Protecting, Emollient
Glycerin
Humectant, Skin Protecting
Panthenol
Skin Conditioning
Hydroxyacetophenone
Antioxidant
Bisabolol
Skin Conditioning, Soothing

Benefits

Good for dry skin

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
rosmarinus officinalis extract
Antimicrobial, Refreshing
Limited public safety data.Read moreShow less
EWG N/A AntimicrobialRefreshingTonic
Sodium Acrylates Copolymer
Binding agent, Film forming
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Binding agentFilm formingViscosity increasing agentBindingOpacifyingViscosity controlling
Hydroxyethylpiperazine Ethane Sulfonic Acid
Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 Buffering agent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Taurine
Fragrance, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceBuffering agent
Hydroxyacetophenone
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Bisabolol
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSoothing
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Inositol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Antistatic agentHair conditioningHumectant
Raspberryketone Glucoside
Humectant, Masking
Limited public safety data.Read moreShow less
EWG N/A HumectantMasking
Lecithin
Skin conditioning, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Skin conditioningEmulsifyingSurfactantAntistatic agentEmollient
Anogeissus Leiocarpus Bark Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
+ 10 more — see the full ingredients list above
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Mauritia Flexuosa Fruit Oil
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning Fungal-acne trigger
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling 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 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.

3-O-ETHYL ASCORBIC ACID

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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