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Chestnut BHA 2% Clear Liquid

Chestnut BHA 2% Clear Liquid

Product Description

Product overview

Made in Various INTERNATIONAL

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.

2% Salicylic Acid Fungal Acne Safe Fragrance-Free Alcohol-Free Vegan Cruelty-Free Paraben-Free Silicone-Free
Pregnancy
Caution
Fungal Acne
Yes
Comedogenic
0/5
Size
100ml
Key Active
2% BHA
pH Level
3.5-4.0
Formula
Vegan
Skin Type
Oily/Combo
Real reviews · YouTube Shorts
Why it's different

Dual Pore Care System

2% Salicylic Acid unclogs pores while Chestnut Shell Extract tightens and refines them for visibly smaller pores.

01

Texture & feel

SENSORY
Consistency
Watery Liquid
Scent
Fragrance-Free
Absorption
Fast (15-30 sec)
Finish
Matte/Natural

Dual 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.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding

Contains 2% salicylic acid. ACOG considers topical salicylic acid up to 2% generally safe, but consult your healthcare provider before use during pregnancy or breastfeeding.

Fungal Acne (Malassezia) Safe

Free from ferments, fatty acids, esters, and polysorbates that feed malassezia yeast. Safe for fungal acne-prone skin.

Non-Comedogenic

Rating 0/5. Contains no pore-clogging ingredients. Excellent choice for acne-prone and congested skin.

Sun Sensitivity

BHA can increase sun sensitivity. Always wear SPF 30+ during the day when using this product.

03

Ingredient breakdown

INGREDIENTS

Salicylic 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
Start with 1-2x weekly use if new to BHA. May cause initial purging as it brings congestion to surface.

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
Sustainable ingredient utilizing chestnut shells that would otherwise be discarded.

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

FREE FROM: Parabens, Alcohol, Synthetic Fragrances, Mineral Oil, Silicones, Sulfates, Essential Oils, Artificial Colors, PEGs, Fermented Ingredients
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
BHA Liquid
3
Toner
4
Serum
5
Moisturizer
6
Sunscreen

Use 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.

05

How to use

HOW TO USE
1

Cleanse Face

Start with clean, dry skin. Use a gentle cleanser and pat face dry completely before application.

2

Apply to Cotton Pad or Palms

Soak a cotton pad with product or dispense 3-4 drops directly onto your palms.

3

Gently Sweep Over Face

Apply to entire face avoiding eye and lip area. Gently wipe along skin texture or pat into skin.

4

Wait 2-3 Minutes

Allow product to absorb fully before applying next skincare steps. No need to rinse off.

5

Follow with Moisturizer

Apply your regular moisturizer to lock in hydration. Use sunscreen during daytime.

06

Who is it for?

WHO

Perfect 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
07

Skin type compatibility

SKIN TYPES
Oily Skin
Excellent

Perfect match. Controls sebum, unclogs pores, and leaves a matte finish without over-drying.

Combination Skin
Excellent

Ideal for T-zone treatment. Can be applied to oily areas only if dry areas are a concern.

Acne-Prone Skin
Excellent

Non-comedogenic, fungal-acne safe formula. Effectively treats and prevents breakouts.

Sensitive Skin
Good

Gentler than most 2% BHAs. Contains soothing allantoin. Start with 1x weekly and patch test first.

Dry Skin
Moderate

Use sparingly (1x weekly max). Triple HA helps, but follow with rich moisturizer.

08

Results timeline

ONGOING USE
Week 1-2

Initial Adjustment

Skin may purge as BHA brings congestion to surface. This is normal. Pores may appear temporarily larger before improving.

60% noticed purging
Week 3-4

Visible Pore Refinement

Blackheads begin clearing. Skin texture feels smoother. Sebum production starts balancing. Purging should subside.

75% noticed smoother texture
Week 5-8

Significant Improvement

Pores appear smaller and cleaner. Fewer breakouts. Skin looks brighter and more refined. Full benefits visible.

85% reported clearer skin
Ongoing Use

Maintenance Results

Continued use 2-3x weekly maintains clear pores and balanced oil production. Fewer breakouts long-term.

90% would repurchase
09

Ratings by platform

1K+ REVIEWS
Amazon
4.5
Rating
500+
Reviews
Main complaint: Small bottle size (100ml) for the price
iHerb
4.7
Rating
300+
Reviews
Main complaint: Can be drying if overused without moisturizer
YesStyle
4.6
Rating
200+
Reviews
Main complaint: Takes time to see results, requires patience
Stylevana
4.8
Rating
150+
Reviews
Main complaint: Watery texture can be messy to apply
10

Pros & cons

BALANCED

Praised

  • 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
11

Budget-friendly alternatives (dupes)

DUPES
85% Match
Salicylic Acid 2% Solution
$6.80
Budget Pick

Same 2% salicylic acid concentration at a fraction of the price. Simpler formula without chestnut extract or triple HA. May be slightly more drying.

75% Match
BHA Blackhead Power Liquid
$25.00
Similar Price

Uses 4% Betaine Salicylate (gentler BHA derivative) instead of pure salicylic acid. More hydrating but leaves tackier finish. Not fungal acne safe.

70% Match
Chestnut BHA 0.9% Clear Toner
$18.00
Budget Pick

Same brand, gentler formula with 0.9% Betaine Salicylate. Larger 200ml bottle. Better for sensitive skin or BHA beginners. Less effective for stubborn congestion.

65% Match
Green Plum Refreshing Toner : AHA + BHA
$15.00
Budget Pick

Combination AHA+BHA toner with green plum extract. Lower BHA concentration but added AHA benefits. Has light fruity scent. Good entry-level option.

12

Comparison with competitors

SIDE-BY-SIDE
BHA 9 Treatment
BHA Type Pure Salicylic Acid 2%
Size 118ml
Fungal Acne Safe No
Texture Slightly Greasy
Added Benefits Green Tea Extract
BHA Blackhead Power Liquid
BHA Type Betaine Salicylate 4%
Size 100ml
Fungal Acne Safe No
Texture Slightly Tacky
Added Benefits Niacinamide + Willow Bark
Pycnogenol 5%
BHA Type Pure Salicylic Acid 2%
Size 30ml
Fungal Acne Safe Yes
Texture Serum-like
Added Benefits Minimal (Witch Hazel)
13

Storage & shelf life

12 MONTHS
Period After Opening (PAO)

12 months after opening

Storage

Store in a cool, dry place away from direct sunlight. No refrigeration needed.

Packaging

Recyclable white plastic bottle with screw cap. Easy pour opening.

Travel Friendly

Yes, 100ml is TSA-approved for carry-on luggage.

13

Frequently asked questions

FAQ

This 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.

— Skincarisma verdict
4.5 / 5 ★★★★★

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.

Browse related

By Concern Acne
By Brand & Origin K-Beauty

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

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.

muscle Pro Tip Alert!

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

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Notable Effects & Ingredients

anti-aging Anti-Aging from 3 ingredient(s):
Citric Acid Hyaluronic Acid Hydrolyzed Hyaluronic Acid
brightening Brightening from 5 ingredient(s):
Salicylic Acid Glycerin Citric Acid Hyaluronic Acid Hydrolyzed Hyaluronic Acid
wound Promotes Wound Healing from 6 ingredient(s):
Glycerin Citric Acid Hyaluronic Acid Hydrolyzed Hyaluronic Acid Sodium Hyaluronate Allantoin
ache Ache-fighting from 1 ingredient(s):
Salicylic Acid
question
lightbulb What are Ingredients Related to Skin Type?

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.

muscle Pro Tip Alert!

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!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
3
oily-skin Oily/Acne-Prone Skin
2 1
sensitive-skin Sensitive Skin
1
question
lightbulb What is the Ingredient Safety Breakdown?

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.

muscle Pro Tip Alert!

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.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
71% 9% 19%

Product ingredient list

Showing first 5 of 21 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
1 Unknown
Propanediol
Solvent, Viscosity Controlling, Viscosity Decreasing Agent
1 A
1,2-Hexanediol
Solvent, Skin Conditioning
Hydrating
4 B
Salicylic Acid
Skin Conditioning, Masking, Fragrance, Hair Conditioning, Antidandruff Agent, Antiacne Agent, Denaturant, Preservative, Exfoliant, Keratolytic, Corn/Callus/Wart Remover
brightening Brightening
ache Ache-fighting
Pores
VIEW ALL INGREDIENTS