Epsom Salt

Cosmetic Grade Magnesium Sulphate Heptahydrate — Bulk supply across India & International Markets

What is Epsom Salt?

Epsom Salt is the common name for Magnesium Sulphate Heptahydrate (MgSO4.7H2O), a naturally occurring mineral compound that has been used in wellness and personal care applications for centuries. Cosmetic Grade Epsom Salt is distinguished from agricultural or industrial grade by its higher purity specification and absence of agricultural processing aids, making it suitable for direct skin contact in bath soaks, foot baths, body scrubs, and other spa and personal care applications.

Polychem Industries supplies Cosmetic Grade Epsom Salt to bath and body product manufacturers, spa product formulators, and wellness product companies across India and internationally. As consumer interest in at-home spa treatments and mineral bath products continues to grow, Cosmetic Grade Epsom Salt has become one of the most sought-after bulk cosmetic ingredients across both mass market and premium personal care product categories.

Available Grades

GradeFormPurityStandardApplications
Cosmetic GradeWhite crystalline granules/powder99.5%+ (Cosmetic Grade)Cosmetic / Personal CareBath soaks, foot soaks, body scrubs, spa treatments

Applications & Uses

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Bath Soaks & Mineral Baths

The most iconic application. Epsom Salt dissolved in warm bath water provides a mineral-rich bathing experience, with consumers traditionally valuing it for muscle relaxation and overall skin feel, making it the foundational ingredient in bath soak and mineral bath product formulations.

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Foot Soaks & Pedicure Products

Widely used in foot soak formulations and pedicure product ranges, where its coarse crystalline texture combined with skin-softening properties make it ideal for foot care products targeting callus softening and general foot wellness.

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Body Scrubs & Exfoliants

Used as a physical exfoliant in body scrub formulations, where its crystalline particle structure provides effective mechanical exfoliation while dissolving cleanly in water without leaving residue on skin.

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Spa & Wellness Products

Used across a broad range of spa and professional wellness products including salt wraps, body masks, and treatment products, capitalising on the strong consumer association of Epsom Salt with relaxation and muscle comfort.

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Nail & Cuticle Care

Used in nail soaking treatments and cuticle care preparations, where soaking nails and cuticles in an Epsom Salt solution is a traditional preparation step for manicure and nail care routines.

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Cosmetic Manufacturing Base

Used as a base ingredient and texture modifier in various cosmetic manufacturing applications where a water-soluble mineral crystal with skin-compatible properties is required.

Technical Specifications

Epsom Salt — Key Properties

Chemical FormulaMgSO4.7H2O
CAS Number10034-99-8
Molecular Weight246.47 g/mol
AppearanceWhite crystalline granules/powder
Purity99.5%+ (Cosmetic Grade)
Melting Point48.3°C (loses water of crystallisation)
Density / Bulk DensityBulk density: 1.0–1.2 g/cm3
pH5.5 – 7.0 (5% solution)
Packaging Available25 kg / 50 kg bags
StorageStore in cool, dry place away from moisture. Hygroscopic — keep sealed to prevent caking. Shelf life 24 months.

Why Source Epsom Salt from Polychem Industries?

  • Cosmetic Grade with purity specification suitable for skin contact
  • Certificate of Analysis and MSDS provided on request
  • White crystalline granules with uniform particle size for bath and scrub use
  • Reliable bulk supply for bath, spa and personal care manufacturers
  • Competitive pricing with consistent year-round availability
  • Export documentation experience for international shipments

Frequently Asked Questions

What is the difference between Cosmetic Grade and Agricultural Grade Epsom Salt?
Cosmetic Grade Epsom Salt is processed and tested to meet purity specifications suitable for direct skin contact applications, including controls on heavy metals and other contaminants that would not be relevant concerns for agricultural use. Agricultural Grade may contain processing aids or have lower purity specifications that are perfectly adequate for soil application or animal feed, but are not appropriate for personal care products. We always recommend specifying Cosmetic Grade when purchasing Epsom Salt for any product intended for skin contact.
Why is Epsom Salt so popular as a bath soak ingredient?
Epsom Salt has a long tradition of use in bath soaking for muscle comfort and relaxation, and its crystalline texture, clean white appearance, easy water solubility, and completely neutral aroma make it an ideal base for scented bath products. Its skin-neutral pH and good safety profile also make it one of the most universally suitable bath ingredients across diverse consumer skin types and preferences.
Can Epsom Salt be used in products for sensitive skin?
Yes — Epsom Salt is generally considered very well-tolerated and is commonly included in sensitive skin-positioned bath and body products due to its simple, well-understood mineral composition and lack of known sensitising potential. As with any cosmetic ingredient, appropriate formulation concentration and overall product compatibility testing is recommended.
Do you export Epsom Salt outside India?
Yes. We export to Bangladesh, Sri Lanka, Nepal, Bhutan, and South Africa with full export documentation. Contact us for export pricing and lead times.

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