
Highlights
WHAT IS IT?
Foot ointment with 4 key ingredients
FEATURES
Exfoliates, softens and hydrates dry, rough and cracked feet
BEST FOR
dry
CHECKS
Who Is It For?
All Ages And GendersWhat Does It Help With?
Dry Rough And Cracked FeetBudget
Affordable (under $30)How To Use
Which routine should it be used in?
Instructions:
Key Information
What PREQUEL Says
Product Description:
A concentrated foot ointment formulated with 15% pure urea, salicylic acid, malic acid and petrolatum that exfoliates, softens and hydrates dry, rough and cracked feet.
About the Brand:
Ingredients Overview
Ingredients List
urea, salicylic-acid, malic-acid, petrolatum
Key Ingredients
urea 15%, salicylic acid, malic acid, petrolatum
Ingredients Details
Urea
Common Name(s): Urea,nmf component keratolytic,dual humectant+exfoliant
CAS Number: N/a
DESCRIPTION
What It Does: At 2โ10%: provides deep humectancy, softens sc, and improves other active penetration. at 10โ40%: keratolytically dissolves corneocyte protein bonds for intensive exfoliation of hyperkeratotic skin (calluses, eczema plaques, psoriasis).
Why It's Used: Urea combines two otherwise separate ingredient classes (humectant and keratolytic) in one molecule, with formulator-controlled function through concentration selection โ uniquely versatile for multiple skin condition applications.
How It Works: Urea's carbonyl and amine groups form h-bonds with water (humectancy) and with corneocyte keratin (penetration). at high concentrations, urea disrupts keratin hydrogen bonds (chaotropic activity) solubilising the sc protein matrix โ concentration determines whether humectant or keratolytic effect predominates.
Typically Found In: Eczema,hyperkeratosis,callus care,moisturising
TECHNICAL DETAILS
Primary Category: Functional ingredient โ humectant
Secondary Functions: Tewl reduction,skin plumping
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 2%โ40%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic or naturally derived. excellent aqueous solubility.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; suitable for all skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Urea is the most concentrated natural nmf component โ healthy sc contains 28 mg/g urea versus 2 mg/g in xerotic (dry) skin. topical urea application directly replenishes the physiological nmf deficit that drives dry skin conditions.
Last Verified: Cosing database,urea nmf dual function humectant keratolytic review
Primary Sources: 2026-03-12