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Lime
AKA “Calcia, Calxyl, Gebrannter kalk, Unslaked lime, Calcium monoxide, Airlock, CALX, Calx usta, Chaux vive, Quick lime”
Mineral
Ingredient Facts
Lime
AKA: Calcia, Calxyl, Gebrannter kalk, Unslaked lime, Calcium monoxide, Airlock, CALX, Calx usta, Chaux vive, Quick lime
Mineral · Fragrance · EWG: 4
Plant-Derived Synthetic
Fragrance
Skin Conditioner
Mineral
Not Clean
Calcium oxide appears as an odorless, white or gray-white solid in the form of hard lumps. A strong irritant to skin, eyes and mucous membranes. Used in insecticides and fertilizers.
Solubility Reacts with water (NIOSH, 2024)
Formula
CaO
Mol. Weight
56.08
CAS #
5793-88-4, 8002-17-3
See origin →
Functions
Fragrance
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Stabilizes Emulsion
Keeps product blended
Traditional Use
Ferric oxide (iron oxide), used historically as a natural pigment in cosmetics and body decoration across numerous ancient cultures including Egypt, India, and China for millennia before synthetic production methods were developed.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Citrus Aurantifolia (Lime) Flower Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Fruit
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Fruit Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Fruit Water
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Juice
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Leaf Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Peel
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Peel Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Peel Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Peel Powder
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Peel Water
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Seed Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Seed Oil Unsaponifiables
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Lime Seed Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Lime Seed Oil Unsaponifiables
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Microcitrus australasica (finger lime) fruit extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Citrus Aurantifolia (Lime) Flower Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Fruit
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Fruit Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Juice
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Leaf Oil
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Oil
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Peel
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Peel Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Peel Oil
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Citrus Aurantifolia (Lime) Peel Water
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
From slime to sublime: the impact of snail mucin on scar ...
Divya Sekar, Prithiviraj Nagarajan, Gayathiri Ekambaram, Leena Rajathy Port Louis, Asbar Banu Bazeer
Cutaneous and ocular toxicology, 2025
→
From slime to sublime: the impact of snail mucin on scar ...
Divya Sekar, Prithiviraj Nagarajan, Gayathiri Ekambaram, Leena Rajathy Port Louis, Asbar Banu Bazeer
Cutaneous and ocular toxicology, 2025
→
From slime to sublime: the impact of snail mucin on scar ...
Divya Sekar, Prithiviraj Nagarajan, Gayathiri Ekambaram, Leena Rajathy Port Louis, Asbar Banu Bazeer
Cutaneous and ocular toxicology, 2025
→
Phytophotodermatitis from lime juice.
Snaidr VA, Lowe PM
The Medical journal of Australia, 2017
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR