Calcium Acetate
AKA “Calcium diacetate, Lime acetate, PhosLo, Lime pyrolignite, Acetate of lime, Acetic acid, calcium salt, Brown acetate
Mineral
Ingredient Facts
Calcium acetate
AKA: Calcium diacetate, Lime acetate, PhosLo, Lime pyrolignite, Acetate of lime, Acetic acid, Calcium salt, Brown acetate
Mineral · Buffering · EWG: 1
Synthetic
Chelating Agent
Mineral
Clean
Helps create a smooth, lightweight texture by controlling how thick or thin the product feels on your skin.
Solubility 37.4 G IN 100 CC OF WATER @ 0 °C; 29.7 G IN 100 CC OF WATER @ 100 °C; SLIGHTLY SOL IN ALCOHOL
Formula
C4H6CaO4
Mol. Weight
158.17
CAS #
62-54-4
Form
Powder
State
Liquid; Dry Powder; Other Solid; Pellets or Large Crystals
See origin →
Functions
Viscosity Controlling
Buffering
pH Regulator
Chelating Agent
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Anti-Inflammatory
Moisturizing
Locks in moisture to keep skin soft and supple throughout the day
Boosts Collagen
Provides scent
Controls product thickness
Traditional Use
Inorganic salt with historical use in traditional medicine and textile production. Applied in modern cosmetics as a buffering agent and firming ingredient.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Mild Irritant
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Safety Assessment of Tetrasodium Glutamate Diacetate and Beta-Alanine Diacetic Acid as Used in Cosmetics.
Burnett CL, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2025
Safety Assessment of Tetrasodium Glutamate Diacetate and Beta-Alanine Diacetic Acid as Used in Cosmetics.
Burnett CL, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2025
Sodium Dehydroacetate and Dehydroacetic Acid.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2024
Sodium Dehydroacetate and Dehydroacetic Acid.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2024
Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Safety Assessment of Tetrasodium Glutamate Diacetate and Beta-Alanine Diacetic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Sodium Dehydroacetate and Dehydroacetic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Acetic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Beta-Alanine Diacetic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Calcium Acetate
European Commission
EU Cosmetic Ingredient Database (CosIng)
dehydroacetic acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Acetic acid and the skin: a review of vinegar in dermatology.
Elhage KG, St Claire K, Daveluy S
International journal of dermatology, 2022
Acetic acid and the skin: a review of vinegar in dermatology.
Elhage KG, St Claire K, Daveluy S
International journal of dermatology, 2022
Acetic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Calcium Acetate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
dehydroacetic acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Potential application of novel liquid crystal nanoparticles of isostearyl glyceryl ether for transdermal delivery of 4-biphenyl acetic acid.
Fujii MY, Asakawa Y, Fukami T
International journal of pharmaceutics, 2020
Preparation of (13)C-labeled ceramide by acetic acid bacteria and its incorporation in mice.
Fukami H, Tachimoto H, Kishi M, Kaga T, Waki H et al.
Journal of lipid research, 2010
Trichloroacetic acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR