FERROUS SULFATE

Other

52

Moderate

CAS Number: 7720-78-7

About FERROUS SULFATE

A mineral salt used for astringent or technical effects, but it is more irritating than the gentlest skincare ingredients.

Detailed Analysis

FERROUS SULFATE is an inorganic salt used in cosmetics for technical or astringent effects. Iron salts can irritate skin and especially eyes, and they are not generally included for skin comfort or barrier support. In well-formulated products exposure is limited, but this is still a moderate-caution ingredient.

What It Does

ASTRINGENT

Skin Benefits

  • ✓ Helps reduce excess oil feel

Known Concerns

  • ⚠ Harmful if swallowed
  • ⚠ Can irritate skin
  • ⚠ Can irritate eyes
  • ⚠ Can stain light-colored products or fabrics

Safety Score

52

Moderate

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

🏛

EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.