Magnesium Sulphate Paste B.P.

Boots

Magnesium Sulphate Paste B.P.

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About this product

The Boots Magnesium Sulphate Paste B.P. is a misc. Our analysis of its 3 ingredients (2 low-risk) rates it Great (67/100).

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
3
Low-risk
2
Fragrance
Fragrance-free
Origin
United Kingdom
Data updated
May 2026

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 1/2
Good for dry skin
Glycerin
Caution for dry skin
Glycerin Phenol
Oily/Acne-Prone Skin No data
Sensitive Skin 1/2
Good for sensitive skin
Glycerin
Caution for sensitive skin
Glycerin Phenol

Ingredients list

3 total
Lower hazard (1) Higher hazard (7)
All3 Hair Conditioning2 Denaturant2 Humectant2 Fragrance2 Oral Health Care Drug2 Solvent1 Perfuming1 Viscosity Decreasing Agent1
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
A
Magnesium Sulfate
(Bulking Agent, Hair Conditioning, Viscosity Controlling)
7
Phenol
(Antimicrobial Agent, Cosmetic Biocide, Denaturant, Deodorant, Exfoliant, Externalanalgesic, Fragrance, Oral Health Care Drug, Preservative)
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

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

Phenol
Exfoliant
Glycerin
Humectant, Skin Protecting

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Scar HealingImproves the look of marks and scars.
Barrier RepairStrengthen and restore your skin's natural barrier.

Concerns

Not fungal acne (malassezia) safe
Phenol — higher EWG
May not suit dry skin
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Magnesium Sulfate
Bulking agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Bulking agentHair conditioningViscosity controlling
Phenol
Antimicrobial agent, Cosmetic biocide
Higher-hazard ingredient.Read moreShow less
EWG 7 Antimicrobial agentCosmetic biocideDenaturantDeodorantExfoliantExternalanalgesicFragranceOral health care drugPreservative
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

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.

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