Calcium Lactate
molecular structure · PubChem
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
Chemical Exfoliant
Not Clean
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...
Effective at 0.75%
Solubility 48
Formula
C6H10CaO6
Mol. Weight
218.22
CAS #
814-80-2
Form
Powder
State
Dry Powder
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
Traditional Use
Lactic acid from fermented milk has ancient roots in skincare across many cultures. Calcium lactate is a modern formulation developed as an exfoliating and conditioning agent with better stability than lactic acid alone.
EWG
5
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
ewg-5
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
0.0003%
1.5%
0%2%
Reported use
CIR reported use: 0.0003-0.06 | 0.072-1.5
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR