MedPath

Ensulizole

Generic Name
Ensulizole
Brand Names
Eucerin
Drug Type
Small Molecule
Chemical Formula
C13H10N2O3S
CAS Number
27503-81-7
Unique Ingredient Identifier
9YQ9DI1W42

Overview

Ensulizole, also known as 2-phenylbenzimidazole-5-sulfonic acid, is a water-soluble sunscreen agent that absorbs strongly at UV-B wavelengths. It is commonly found in cosmetic products and sunscreen formulas in combination with other UV filter compounds due to its minimal protection against UV-A wavelengths. Due to its water solubility, ensulizole is commonly used in products formulated to feel light and less oily . It was demonstrated by studies that ensulizole treatment provided protection against cyclobutane pyrimidine dimers and photosensitized the formation of oxidized guanine bases after UV-A or UV-B exposure . According to the FDA, the maximal approved concentration of ensulizole is 148 mM although concentrations ranging between 74 and 148mM can be found in commercial sunscreen products .

Indication

Indicated to be used as an UV-B-absorbing molecule in sunscreen formulations.

Associated Conditions

No associated conditions information available.

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor

No clinical trials found

No clinical trials found for this drug

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
AHAVA Dead Sea Laboratories Ltd
60289-286
TOPICAL
0.5 g in 50 mL
7/28/2025

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
No EMA approvals found for this drug.

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
No HSA approvals found for this drug.

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.

Health Canada Drug Approvals

Approved Product
Company
DIN
Dosage Form
Strength
Market Date
OIL OF OLAY DAILY UV PROTECTANT MOIST CRM
procter & gamble inc
01947400
Cream - Topical
1 %
12/31/1992
OLAY PROFESSIONAL PRO-X AGE PROTECTION LOTION WITH SPF 30
procter & gamble inc
02310414
Lotion - Topical
2 % / W/W
2/5/2009
MARCELLE HYDRA-C 24 H + SPF 15 FPS MOISTURIZING CREAM CRÈME HYDRATANTE DRY SKIN PEAUX SÈCHES
groupe marcelle inc
02434768
Cream - Topical
2.0 % / W/W
11/3/2015
OLAY DEFINITY REFINING LOTION WITH UV PROTECTION
procter & gamble inc
02270587
Lotion - Topical
1 %
7/27/2006
OLAY AGE DEFYING ANTI-WRINKLE - DAILY SPF 15 LOTION
procter & gamble inc
02260328
Suspension - Topical
1 %
2/9/2006
MESOESTETIC SUN PROTECTION SPF 30
tylstin medical
02318911
Cream - Topical
2 %
7/13/2009
OIL OF OLAY PROTECTIVE MOISTURE LOTION
procter & gamble inc
02231786
Lotion - Topical
1 %
3/27/1998
15 SPF FPS PREMIUM SUNSCREEN
empack spraytech inc
02264250
Lotion - Topical
2 % / W/W
5/4/2005
FPS 60 LOTION UV ULTRA-LÉGÈRE
vichy canada
02518031
Lotion - Topical
0.5 % / W/W
4/13/2022
CC SUNSCREEN
the avon company canada limited
02474581
Cream - Topical
3.5 % / W/W
5/13/2019

CIMA AEMPS Drug Approvals

Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
No CIMA AEMPS (Spain) approvals found for this drug.

Philippines FDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Philippines FDA approvals found for this drug.

Saudi SFDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Saudi SFDA approvals found for this drug.

Malaysia NPRA Drug Approvals

Approved Product
Company
Registration Number
Dosage Form
Strength
Approval Date
No Malaysia NPRA approvals found for this drug.

UK EMC Drug Information

Medicine Name
MA Holder
MA Number
Pharmaceutical Form
Active Ingredient
Authorization Date
No UK EMC drug information found for this drug.

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