Magnesium Sulfate

Magnesium Sulfate is a cosmetic ingredient used as a bulking agent. It appears in about 2% of cosmetic products in our 90,000+ product dataset. It carries no restriction under the EU Cosmetics Regulation annexes. PubMed carries 223 studies of its skin or topical use.

INCI nameMAGNESIUM SULFATE
FunctionBULKING
CAS number7487-88-9; 10034-99-8 (heptahydrate) ; 18939-43-0
EC number231-298-2
Prevalence1,520 products (1.64% of dataset)
Most used inSkincare
EU statusNo annex restriction
Scientific studies223 on PubMed (skin/cosmetic/topical)
Monthly searches27,100

Used in

Sunscreens 20.1%Foundations 19.9%Concealers 9.5%BB, CC, Tinted Moisturizers 7.4%General Moisturizers 7.2%Face Primers 4.5%

Frequently asked

What does Magnesium Sulfate do in skincare?
Magnesium Sulfate functions as a bulking agent in cosmetic formulas.
What products contain Magnesium Sulfate?
It is most commonly found in Skincare products, especially sunscreens (20.1% of its uses).

Manufacturers with experience using Magnesium Sulfate

Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.