
Highlights
WHAT IS IT?
Liquid exfoliant with 2% BHA (salicylic acid), 7 ingredients listed
FEATURES
Clinically proven, clears and minimizes enlarged pores, sheds built-up layers of skin, fluid lightweight texture, gentle formula with soothing green tea supports skin barrier
BEST FOR
oily
CHECKS
Does not contain fragrance
Who Is It For?
All Genders All AgesWhat Does It Help With?
Unclogs Pores Controls Oil Clear Glowing Skin Reduces Enlarged PoresBudget
Premium ($76-$150)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Paula's Choice Says
Product Description:
Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant is clinically proven daily leave-on liquid exfoliant with salicylic acid quickly unclogs pores and controls oil for clear, glowing skin. Clears & minimizes enlarged pores. BHA (beta hydroxy acid) sheds built-up layers of skin. Fluid, lightweight texture absorbs quickly. Gentle formula with soothing green tea supports skinโs barrier.
About the Brand:
Ingredients Overview
Ingredients List
water-aqua,methylpropanediol,butylene-glycol,salicylic-acid,polysorbate-20,camellia-oleifera-leaf-extract,sodium-hydroxide,tetrasodium-edta
Key Ingredients
Green Tea, Methylpropanediol, Bha (Beta Hydroxy Acid)
Ingredients Details
Methylpropanediol
Common Name(s): 1,3-butylene glycol alternative,2-methyl-1,3-propanediol,proline-2-propanediol
CAS Number: 2163-42-0
DESCRIPTION
What It Does: Provides humectant and solvent functionality with improved skin feel vs butylene glycol.
Why It's Used: Premium humectant solvent with superior skin feel to conventional diols for elegant premium formulation textures.
How It Works: Branched c4 structure provides good humectant activity. branching reduces viscosity and stickiness vs linear propylene glycol. excellent solvent for challenging actives. antimicrobial boosting from diol structure.
Typically Found In: Premium serums,active delivery systems
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: 1%โ10%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
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
Methylpropanediol's methyl branch provides a 25% reduction in dynamic viscosity vs linear butylene glycol at equivalent concentration โ a physically measurable skin feel improvement from the branching's reduction of intermolecular attractive forces. this viscosity reduction translates directly to the 'less sticky, lighter' skin feel that premium formulations require.
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12