AHA 7 Whitehead Power Liquid
AHA 7 Whitehead Power Liquid
Product Description
Product overview
A powerful yet gentle 7% Glycolic Acid (AHA) chemical exfoliant formulated with 75% Apple Fruit Water. This minimalist 10-ingredient formula dissolves dead skin cells, clears whiteheads, and reveals a brighter, smoother complexion. Perfect for targeting closed comedones, uneven texture, and dull skin.
Apple Water Base (75%)
Replaces plain water with natural AHA-rich apple fruit water for enhanced exfoliation and gentler experience.
Texture & feel
SENSORYApple Water Base (75%)
Replaces plain water with natural AHA-rich apple fruit water for enhanced exfoliation and gentler experience.
Clears Whiteheads & Bumps
Dissolves the bonds between dead skin cells to clear closed comedones and reveal smoother texture.
Brightens & Evens Tone
Fades post-acne marks and hyperpigmentation with continued use. Contains niacinamide for extra brightening.
Hydrating Formula
Unlike harsh exfoliants, includes Sodium Hyaluronate and Panthenol to maintain skin hydration while exfoliating.
Safety & compatibility
SAFENot recommended. COSRX advises avoiding AHAs/BHAs during pregnancy and breastfeeding. Consult your healthcare provider.
Free from fatty acids, oils, esters, polysorbates, and fermented ingredients that can trigger fungal acne.
Rated 1/5. Minimal risk of clogging pores. Only butylene glycol has a potential acne trigger score of 1.
AHAs increase photosensitivity. Always apply SPF 30+ sunscreen the morning after use. Best used in PM routine.
Avoid using with retinoids, Vitamin C, or other AHA/BHA products in the same routine to prevent irritation.
Slight tingling is normal. Start once weekly, gradually increase to 2-3 times per week as skin adjusts.
Ingredient breakdown
INGREDIENTSGlycolic Acid 7%Proven
The smallest AHA molecule, allowing deeper penetration for effective exfoliation. Dissolves the bonds between dead skin cells, promoting cell turnover and revealing brighter, smoother skin.
- Clinical Evidence: 5-20% concentrations proven effective in studies for exfoliation and anti-aging
- Collagen Boost: Long-term use stimulates collagen production for firmer skin
- Hydration: Helps skin produce hyaluronic acid naturally
Pyrus Malus (Apple) Fruit Water 75%Natural AHA
The base of this formula, replacing plain water. Rich in natural fruit acids (malic acid) and vitamins that enhance the exfoliating benefits while being gentler than synthetic alternatives.
- Source: Natural AHAs from apple fruit for enhanced exfoliation
- Benefits: Provides antioxidants and vitamins while improving product efficacy
Niacinamide 2-3%Proven
A multi-tasking form of Vitamin B3 that strengthens the skin barrier, reduces pore appearance, fades dark spots, and regulates oil production.
- Clinical Evidence: Proven to fade hyperpigmentation at 2-5% concentration
- Barrier Support: Increases ceramide synthesis for stronger skin barrier
- Oil Control: Helps regulate sebum production
Sodium HyaluronateHydrating
A salt form of hyaluronic acid with smaller molecular size for better penetration. Attracts and retains moisture in the skin, preventing the dryness often associated with exfoliants.
- Hydration: Can hold up to 1000x its weight in water
- Penetration: Smaller molecules penetrate deeper than regular HA
Panthenol (Vitamin B5) ~0.5%Soothing
A provitamin that converts to pantothenic acid in the skin. Provides hydration, supports skin barrier function, and helps reduce inflammation.
- Barrier Repair: Strengthens skin barrier function
- Anti-inflammatory: Helps calm irritation from exfoliation
10 ingredients
Pyrus Malus (Apple) Fruit Water, Butylene Glycol, Glycolic Acid, Niacinamide, Sodium Hydroxide, 1,2-Hexanediol, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol
Where it fits in your routine
ROUTINEBest used in PM routine. Wait 20-30 minutes after application before applying next products for maximum efficacy.
How to use
HOW TO USECleanse Your Face
Start with clean, dry skin. Use a gentle cleanser and pat dry before application.
Apply the Liquid
Dispense onto a cotton pad or clean fingertips. Gently swipe a thin layer over face, avoiding eye and lip areas.
Wait for Absorption
Allow 20-30 minutes for full absorption and to let the acid work at its optimal pH level before next steps.
Continue Routine
Follow with serum and moisturizer. In the morning, always apply SPF 30+ sunscreen.
Who is it for?
WHOPerfect for you if:
- You have whiteheads or closed comedones
- Your skin looks dull and needs a glow-up
- You have uneven texture or rough skin
- You want to fade post-acne marks/PIH
- You have oily or combination skin
- You prefer minimal, no-fuss formulas
- You have fungal acne concerns
- You want an affordable AHA option
Consider alternatives if:
- You are pregnant or breastfeeding
- You have very sensitive or reactive skin
- Your skin barrier is currently compromised
- You already use retinoids daily
- You have active eczema or rosacea flares
- You cannot commit to daily sunscreen use
- You prefer stronger concentrations (10%+)
Skin type compatibility
SKIN TYPESLightweight watery texture absorbs quickly without adding shine. Helps control sebum and clear congested pores.
Balances well across T-zone and cheeks. Can target specific congested areas without over-drying others.
Great maintenance exfoliant for keeping skin clear, smooth, and glowing. Use 2-3 times weekly.
The hydrating ingredients help, but follow with a rich moisturizer. Start with once weekly use.
Start very slowly (once weekly). Some may experience irritation. Patch test essential. Consider PHA alternatives if very reactive.
Non-comedogenic and fungal acne safe. Excellent for closed comedones and preventing future breakouts.
Results timeline
MONTH 3+Initial Adjustment
Skin may tingle during application. Possible mild purging as clogged pores surface. Skin starts to feel smoother after each use.
60% notice smoother textureVisible Improvements
Whiteheads and closed comedones begin to clear. Skin appears brighter and more radiant. Pores look more refined.
75% see reduced whiteheadsSignificant Results
Noticeable improvement in skin texture and tone. Post-acne marks start fading. Skin has an overall healthier glow.
85% report clearer skinLong-Term Benefits
Collagen production improvements may reduce fine lines. Consistent use maintains clear, bright, even-toned skin.
90% see lasting improvementsRatings by platform
21K+ REVIEWSPros & cons
BALANCEDPraised
- Effectively clears whiteheads and closed comedones
- Noticeable improvement in skin texture and brightness
- Minimal, clean ingredient list (only 10)
- Fungal acne safe formula
- Affordable price point for an effective AHA
- Fragrance-free and gentle enough for regular use
- Hydrating despite being an exfoliant
- Makes skin feel baby-soft and smooth
Criticized
- Can cause purging in first few weeks
- Some users detect a faint chemical/plastic smell
- May be too strong for very sensitive skin
- Watery texture can drip during application
- Requires strict sunscreen use afterward
- Not suitable during pregnancy/breastfeeding
- Results require patience (2-4 weeks minimum)
Budget-friendly alternatives (dupes)
DUPESSame 7% glycolic acid concentration. Water-based with soothing Tasmanian Pepperberry. Larger 240ml size. Contains more ingredients (42 vs 10). Not fungal acne safe due to polysorbates.
Lower AHA concentration but includes BHA and PHA for gentler triple-acid approach. More suitable for sensitive skin. Contains tea tree and niacinamide. Not as targeted for whiteheads.
Lower 5% concentration - better for beginners. Contains aloe vera and ginseng. Has fragrance. More widely available at drugstores. Less effective for stubborn closed comedones.
10% glycolic acid - higher concentration. Contains witch hazel for additional pore benefits. May be more irritating. Good value alternative but stronger formula.
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 required.
Sturdy pump bottle with airtight dispenser to protect formula integrity
Yes, 100ml is TSA-approved for carry-on luggage
Frequently asked questions
FAQNo, this product is not recommended during pregnancy or breastfeeding. COSRX specifically advises avoiding AHAs and BHAs during pregnancy. Glycolic acid is a category C ingredient with limited safety data for pregnant women. Always consult your healthcare provider for personalized advice on skincare during pregnancy.
Yes! This product is fungal acne safe. It contains no fatty acids, oils, esters, polysorbates, or fermented ingredients that can feed malassezia yeast. The simple 10-ingredient formula has been verified as safe by multiple fungal acne databases including SkinCarisma and Folliculitis Scout.
It's best to avoid using multiple actives in the same routine. If you use retinol, apply AHA on alternate nights. For Vitamin C, use in the morning and AHA at night. Never layer AHA with BHA or other direct acids in one routine as this can cause irritation and compromise your skin barrier. Allow your skin to adjust between introducing new actives.
This product works best for oily, combination, and normal skin types. It's particularly excellent for acne-prone skin with whiteheads, closed comedones, and textured skin. Dry skin types can use it but should follow with a rich moisturizer. Those with very sensitive or reactive skin should start slowly or consider gentler alternatives like PHAs.
Most users notice smoother skin texture within 1-2 weeks. Visible reduction in whiteheads typically occurs around weeks 3-4. Significant improvements in skin tone and clarity are usually seen by weeks 6-8. Long-term benefits like reduced fine lines may take 3+ months of consistent use. Be patient and consistent - results are cumulative.
Apply after cleansing (and toner if you use one) on clean, dry skin. This should be one of the first products in your routine. Wait 20-30 minutes after application before continuing with serums and moisturizer to allow the acid to work at optimal pH. Always use at night and follow with SPF 30+ the next morning.
No, this product has a very low comedogenic rating of 1/5. The only ingredient with any pore-clogging potential is butylene glycol, which scores a 1 (very low risk). The formula is specifically designed to clear pores, not clog them. It's safe for acne-prone skin and actually helps prevent future breakouts by keeping pores clear.
The product has a PAO (Period After Opening) of 12 months. Store in a cool, dry place away from direct sunlight to maintain efficacy. The pump bottle design helps protect the formula from air and contamination. If the product changes color, smell, or texture, discontinue use.
Verdict: The COSRX AHA 7 Whitehead Power Liquid is an exceptional value for anyone struggling with whiteheads, closed comedones, or dull, textured skin. Its minimalist 10-ingredient formula with 7% glycolic acid delivers effective results without unnecessary fillers. The fungal acne-safe formulation and affordable price point make it a standout choice in the crowded AHA market. While it requires patience and strict sunscreen use, consistent application rewards users with visibly smoother, brighter, and clearer skin. A K-beauty cult favorite that lives up to the hype.
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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 |
|---|---|---|---|
| 0 |
Pyrus Malus Fruit Water
Masking
|
|
|
| 1 |
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
|
Hydrating
|
|
| 4 |
Glycolic Acid
Ph Adjuster, Buffering Agent, Exfoliant, Exfoliating, Buffering
|
Promotes Wound Healing
Dark Spots
Texture
Pores
|
|
| 1 |
Niacinamide
Skin Conditioning, Hair Conditioning, Smoothing
|
Promotes Wound Healing
Redness
Irritation
Dark Spots
Pores
|
|
| 3 |
Sodium Hydroxide
Ph Adjuster, Buffering Agent, Denaturant, Buffering
|
|









