murphyCalcium Lactate
AKA: 814-80-2, Calphosan, Conclyte calcium, Hemicalcium L-lactate, Lactic acid, Calcium salt (2:1), 2-Hydroxypropanoic acid calcium salt, Ca lactate, Calcium lactate anhydrous, Propanoic acid
Synthetic
Rx Active
Astringent
Not Clean
OriginProduced from lactic acid, a hydroxy acid typically synthesized from corn or sugar fermentation sources. Synthesized by neutralizing lactic acid with calcium hydroxide or calcium carbonate to form the salt.
Based on the available information included in this report, the CIR Expert Panel concludes that Glycolic and Lactic Acid, their common salts and their simple esters, are safe for use in cosmetic products at concentrations less than or equal to 10%, at final formulation pH greater than or equal to 3.5, when formulated to avoid increasing sun sensitivity or when directions for use include the daily use of sun protection. These ingredients are safe for use in salon products at concentrations less than or equal to 30%, at final formulation pH greater than or equal to 3.0, in products designed for brief, discontinuous use followed by thorough rinsing from the skin, when applied by trained professionals, and when application is accompanied by directions for the daily use of sun protection...Calcium Lactate...
Solubility 48
Formula
C6H10CaO6
Mol. Weight
218.22
CAS #
814-80-2
Form
Powder
State
Dry Powder
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
Functions
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Buffering
Keratolytic
A pharmaceutical-grade active. These are the heavy hitters — often prescription-strength or regulated for potency.
Controls excess oil
Minimizes pores
Shields from UV damage
Supports cell turnover
Unclogs pores
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
5
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer (CIR Panel on the ingredient group)
CIR Panel statement covering this group of ingredients / not tested individually (CIR 34)
Skin Irritant in Testing (CIR Panel on the ingredient group)
CIR Panel statement covering this group of ingredients / not tested individually (CIR 34)
Concentration Guide
Leave-on0.072–1%
Rinse-off0.3–1.5%
0%50%100%
CIR reported use · 2013 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR