Chestnut BHA 2% Clear Liquid
Chestnut BHA 2% Clear Liquid
Product Description
Product overview
A gentle yet effective 2% salicylic acid exfoliating liquid that unclogs pores, controls sebum, and refines skin texture without irritation. Enriched with chestnut shell extract and triple hyaluronic acid complex for balanced, hydrated skin.
Dual Pore Care System
2% Salicylic Acid unclogs pores while Chestnut Shell Extract tightens and refines them for visibly smaller pores.
Texture & feel
SENSORYDual Pore Care System
2% Salicylic Acid unclogs pores while Chestnut Shell Extract tightens and refines them for visibly smaller pores.
Triple Hyaluronic Acid Complex
Three types of hyaluronic acid prevent moisture loss during exfoliation, keeping skin hydrated and balanced.
Willow Bark Extract
Natural source of salicin works synergistically with BHA to soothe and calm irritated, acne-prone skin.
Non-Greasy Formula
Lightweight watery texture absorbs quickly without sticky residue, perfect for layering under other products.
Safety & compatibility
SAFEContains 2% salicylic acid. ACOG considers topical salicylic acid up to 2% generally safe, but consult your healthcare provider before use during pregnancy or breastfeeding.
Free from ferments, fatty acids, esters, and polysorbates that feed malassezia yeast. Safe for fungal acne-prone skin.
Rating 0/5. Contains no pore-clogging ingredients. Excellent choice for acne-prone and congested skin.
BHA can increase sun sensitivity. Always wear SPF 30+ during the day when using this product.
Ingredient breakdown
INGREDIENTSSalicylic Acid 2%Proven
Oil-soluble beta hydroxy acid that penetrates deep into pores to dissolve sebum, dead skin cells, and debris. Provides antibacterial and anti-inflammatory benefits.
- Function: Exfoliates inside pores, unclogs blackheads/whiteheads
- Research: FDA-approved OTC acne treatment at 0.5-2%
- Benefits: Reduces acne, controls oil, smooths texture
Chestnut Shell Extract 1.04%Promising
Rich in tannins with astringent properties that help tighten pores and control excess sebum production. Provides antioxidant and anti-inflammatory benefits.
- Function: Pore-tightening, sebum control, soothing
- Research: Studies show antioxidant and anti-inflammatory properties
- Benefits: Minimizes pore appearance, balances oil-water ratio
Triple Hyaluronic Acid Complex Multi-weightProven
Three molecular weights of hyaluronic acid (Hyaluronic Acid, Hydrolyzed HA, Sodium Hyaluronate) provide multi-layer hydration from surface to deeper skin layers.
- Function: Attracts and retains moisture at multiple skin depths
- Research: Can hold up to 1000x its weight in water
- Benefits: Prevents dryness from exfoliation, plumps skin
Willow Bark ExtractProven
Natural source of salicin, a precursor to salicylic acid. Works synergistically with BHA while providing additional soothing and anti-inflammatory benefits.
- Function: Gentle exfoliation, anti-inflammatory
- Research: Used for centuries in traditional medicine
- Benefits: Calms redness, supports BHA efficacy
AllantoinProven
Powerful skin soother that promotes cell regeneration and provides anti-irritation benefits. Helps offset potential irritation from exfoliating acids.
- Function: Soothes, heals, moisturizes
- Research: Well-documented wound healing properties
- Benefits: Reduces irritation, promotes skin repair
21 ingredients
Water, Butylene Glycol, Propanediol, 1,2-Hexanediol, Salicylic Acid, Castanea Crenata (Chestnut) Shell Extract, Sodium Hydroxide, Glycerin, Biosaccharide Gum-1, Ethylhexylglycerin, Xanthan Gum, Hydroxyethylcellulose, Disodium EDTA, Citric Acid, Dipotassium Glycyrrhizate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Citrate, Sodium Hyaluronate, Salix Alba (Willow) Bark Extract, Allantoin
Where it fits in your routine
ROUTINEUse in PM routine 1-3x weekly. Always follow with sunscreen in AM. Do not mix with other exfoliating acids or retinol in the same routine.
How to use
HOW TO USECleanse Face
Start with clean, dry skin. Use a gentle cleanser and pat face dry completely before application.
Apply to Cotton Pad or Palms
Soak a cotton pad with product or dispense 3-4 drops directly onto your palms.
Gently Sweep Over Face
Apply to entire face avoiding eye and lip area. Gently wipe along skin texture or pat into skin.
Wait 2-3 Minutes
Allow product to absorb fully before applying next skincare steps. No need to rinse off.
Follow with Moisturizer
Apply your regular moisturizer to lock in hydration. Use sunscreen during daytime.
Who is it for?
WHOPerfect for you if:
- You have oily or combination skin
- You struggle with blackheads and clogged pores
- You want a gentler alternative to Paula's Choice BHA
- You have fungal acne and need a safe exfoliant
- You're new to BHA and want a beginner-friendly option
- You prefer lightweight, non-greasy textures
- You want a fragrance-free formula
Consider alternatives if:
- You have very dry or dehydrated skin
- You need a stronger BHA (try COSRX 4%)
- You're pregnant (consult doctor first)
- You have active eczema or rosacea flare-ups
- You're already using multiple actives daily
- You prefer cream or gel textures
Skin type compatibility
SKIN TYPESPerfect match. Controls sebum, unclogs pores, and leaves a matte finish without over-drying.
Ideal for T-zone treatment. Can be applied to oily areas only if dry areas are a concern.
Non-comedogenic, fungal-acne safe formula. Effectively treats and prevents breakouts.
Gentler than most 2% BHAs. Contains soothing allantoin. Start with 1x weekly and patch test first.
Use sparingly (1x weekly max). Triple HA helps, but follow with rich moisturizer.
Results timeline
ONGOING USEInitial Adjustment
Skin may purge as BHA brings congestion to surface. This is normal. Pores may appear temporarily larger before improving.
60% noticed purgingVisible Pore Refinement
Blackheads begin clearing. Skin texture feels smoother. Sebum production starts balancing. Purging should subside.
75% noticed smoother textureSignificant Improvement
Pores appear smaller and cleaner. Fewer breakouts. Skin looks brighter and more refined. Full benefits visible.
85% reported clearer skinMaintenance Results
Continued use 2-3x weekly maintains clear pores and balanced oil production. Fewer breakouts long-term.
90% would repurchaseRatings by platform
1K+ REVIEWSPros & cons
BALANCEDPraised
- Gentler than Paula's Choice with same 2% concentration
- 100% fungal acne safe formula
- No greasy or sticky residue
- Completely fragrance-free
- Contains hydrating hyaluronic acids
- Affordable K-beauty option
- Clean, minimal ingredient list
- No stinging or burning sensation
Criticized
- Smaller bottle (100ml) than competitors
- May cause initial purging
- Watery texture can be messy
- Results take 4-6 weeks to show
- Not strong enough for stubborn blackheads
- Needs to be followed with moisturizer
Budget-friendly alternatives (dupes)
DUPESSame 2% salicylic acid concentration at a fraction of the price. Simpler formula without chestnut extract or triple HA. May be slightly more drying.
Uses 4% Betaine Salicylate (gentler BHA derivative) instead of pure salicylic acid. More hydrating but leaves tackier finish. Not fungal acne safe.
Same brand, gentler formula with 0.9% Betaine Salicylate. Larger 200ml bottle. Better for sensitive skin or BHA beginners. Less effective for stubborn congestion.
Combination AHA+BHA toner with green plum extract. Lower BHA concentration but added AHA benefits. Has light fruity scent. Good entry-level option.
Comparison with competitors
SIDE-BY-SIDEStorage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight. No refrigeration needed.
Recyclable white plastic bottle with screw cap. Easy pour opening.
Yes, 100ml is TSA-approved for carry-on luggage.
Frequently asked questions
FAQThis product contains 2% salicylic acid. According to ACOG (American College of Obstetricians and Gynecologists), topical salicylic acid up to 2% is generally considered safe during pregnancy when used on small areas. However, because this is at the upper limit, we recommend consulting with your healthcare provider before use during pregnancy or breastfeeding. Avoid using over large body areas or under occlusion.
Yes! This product is 100% fungal acne safe. It contains no fermented ingredients, fatty acids (like oleic acid), esters, polysorbates, or other ingredients that feed malassezia yeast. In fact, salicylic acid can help treat fungal acne by keeping pores clear and preventing the conditions that allow fungal overgrowth.
Avoid using this BHA in the same routine as other exfoliating acids (AHA, other BHAs) or retinol to prevent over-exfoliation and irritation. You can use them on alternate days or at different times (BHA at night, vitamin C in morning). Vitamin C serums at low pH may be used in the same routine if your skin tolerates it, but apply vitamin C first, wait 15-20 minutes, then apply BHA.
This product is best suited for oily, combination, and acne-prone skin types. The lightweight, non-greasy formula controls sebum while the triple hyaluronic acid prevents over-drying. Sensitive skin types can use it but should start with once-weekly application. Dry skin types may find it too drying without adequate moisturizer follow-up.
Initial smoothness can be felt within the first few uses. However, significant improvement in pore size, blackheads, and overall texture typically takes 4-8 weeks of consistent use (2-3x weekly). Some users experience initial purging in weeks 1-2 as the BHA brings existing congestion to the surface faster. Be patient and consistent for best results.
Apply after cleansing on dry skin, before toner and other treatments. The order is: Cleanser → BHA Liquid → Wait 2-3 min → Toner → Serum → Moisturizer → Sunscreen (AM). Use in your PM routine only, 1-3 times per week. If using actives on other days, give your skin rest days between strong treatments.
No, this product has a comedogenic rating of 0/5. It contains no pore-clogging ingredients and is specifically designed to unclog pores. The formula is free from oils, fatty acids, and other ingredients known to cause congestion. It's an excellent choice for those prone to blackheads and clogged pores.
The product has a PAO (Period After Opening) of 12 months. Store in a cool, dry place away from direct sunlight. With typical use of 2-3x per week, the 100ml bottle should last approximately 3-4 months. There's no need to refrigerate, but avoid exposing to heat or leaving in humid bathroom environments.
Verdict: The Isntree Chestnut BHA 2% Clear Liquid is an excellent choice for those seeking an effective yet gentle BHA exfoliant. Its standout features are its fungal acne-safe formula, non-greasy texture, and the addition of triple hyaluronic acids that prevent the dryness common with BHA products. While it may not be as potent as the cult-favorite Paula's Choice, it offers comparable results at a lower price point with better tolerability for sensitive skin. The chestnut shell extract adds pore-tightening benefits you won't find in most BHA products. Ideal for oily, combination, and acne-prone skin types looking for a reliable, clean-formula exfoliant. Highly recommended as a Paula's Choice alternative, especially for those with fungal acne concerns.
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Product Overview
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Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 1 |
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
|
Hydrating
|
|
| 1 |
Propanediol
Solvent, Viscosity Controlling, Viscosity Decreasing Agent
|
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|
|
| 4 |
Salicylic Acid
Skin Conditioning, Masking, Fragrance, Hair Conditioning, Antidandruff Agent, Antiacne Agent, Denaturant, Preservative, Exfoliant, Keratolytic, Corn/Callus/Wart Remover
|
Pores
|








