Calcium Lactate
AKA “Calphosan, Conclyte calcium, Hemicalcium L-lactate, Lactic acid, calcium salt (2:1), 2-Hydroxypropanoic acid calcium salt, Ca lactate, Calcium lactate anhydrous”
Synthetic
Ingredient Facts
Calcium lactate
AKA: Calphosan, Conclyte calcium, Hemicalcium L-lactate, Lactic acid, Calcium salt (2:1), 2-Hydroxypropanoic acid calcium salt, Ca lactate, Calcium lactate anhydrous
Synthetic · Astringent · EWG: 5
Synthetic
Rx Active
Astringent
Chemical Exfoliant
Synthetic
Clean
A gentle exfoliant that helps remove dead skin cells and smooth skin texture, derived from lactic acid.
Effective at 0.75%
Solubility 48
Formula
C6H10CaO6
Mol. Weight
218.22
CAS #
814-80-2
Form
Powder
State
Dry Powder
See origin →
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.
Skin Types
●all-skin-types
Best For
Dehydration
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
5
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
ewg-5
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
0.0003%
1.5%
0%2%
Effective Range
CIR reported use: 0.0003-0.06 | 0.072-1.5
Regulatory Agencies
Final Report on the Safety Assessment of Glycolic Acid, Ammonium, Calcium, Potassium, and Sodium Glycolates, Methyl, Ethyl, Propyl, and Butyl Glycolates, and Lactic Acid, Ammonium, Calcium, Potassium,
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report: Safety Assessment of Polyhydroxystearic Acid, Poly(3-Hydroxyoctanoic Acid, and Polylactic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Efficacy and Safety of Poly-l-Lactic Acid in Facial Aesth...
Roberta Signori, Antony de Paula Barbosa, Fernando Cezar-Dos-Santos, Ana Claudia Carbone, Silvio Ventura, Bryanne Brissian de Souza Nobre + 4 more
Polymers, 2024
Efficacy and Safety of Poly-l-Lactic Acid in Facial Aesth...
Roberta Signori, Antony de Paula Barbosa, Fernando Cezar-Dos-Santos, Ana Claudia Carbone, Silvio Ventura, Bryanne Brissian de Souza Nobre + 4 more
Polymers, 2024
Efficacy and Safety of Poly-l-Lactic Acid in Facial Aesth...
Roberta Signori, Antony de Paula Barbosa, Fernando Cezar-Dos-Santos, Ana Claudia Carbone, Silvio Ventura, Bryanne Brissian de Souza Nobre + 4 more
Polymers, 2024
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR