Here's our complete breakdown comparing the ingredients, attributes, and more of By WishTrend Mandelic Acid 5% Skin Prep Water versus COSRX BHA Blackhead Power Liquid .
Last updated on July 18, 2023. Published on June 18, 2021
Overview
What they are
These products are both vegan, cruelty-free, and reef safe exfoliators. They have a total of 5 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for brightening skin, sensitive skin, reducing pores and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Exfoliator
Exfoliators are used to exfoliate the skin, or remove dead skin cells from the skin. Exfoliators may be chemical or physical.
Exfoliator
Exfoliators are used to exfoliate the skin, or remove dead skin cells from the skin. Exfoliators may be chemical or physical.
Price
Ingredient Info
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
COSRX BHA Blackhead Power Liquid 10 ingredients
![](https://skinsort.com/assets/icons/alcohol-570e74c59474da248f6d42a24d6ee0930b01af9a.png)
Alcohol Free
This product is free of harsh alcohols 🎉
![](https://skinsort.com/assets/icons/silicon-8991c4780a9d5297394a0647dbfa6440450088c8.png)
Silicon Free
This product is free of silicons 🎉
![](https://skinsort.com/assets/icons/fragrance-71a1331fb3626f191c84a187e20119a26d035b27.png)
Fragrance Free
This product is free of fragrances 🎉
![](https://skinsort.com/assets/icons/sulfate-b3d754d88794990a8a0a7a1160d4d387950f3fa4.png)
Sulfate Free
This product is free of sulfates 🎉
![](https://skinsort.com/assets/icons/paraben-ec692662af454494635203f92aecc77d9068f3eb.png)
Paraben Free
This product is free of parabens 🎉
![](https://skinsort.com/assets/icons/oil-1f40a632c86d0e92fb015d48a7a336f766d68120.png)
Contains Oils
Ingredients in this product that are types of oil:
![](https://skinsort.com/assets/icons/fungal-c59dd3d9174b5b4e51dc9555a5a78131523603b8.png)
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
![](https://skinsort.com/assets/icons/reef-c53c4638fc0ebe0e1885445148f90c590fe4ddfb.png)
Reef Safe
This product is free of ingredients that damage reefs 🎉
![](https://skinsort.com/assets/icons/allergen-829096705c31ca3fd4e51eb28898a5059278cf9a.png)
EU Allergen Free
This product is free of EU allergens 🎉
![](https://skinsort.com/assets/icons/vegan-a11526c600c53d2cc1aab377e2c33c257f4d7912.png)
Vegan
This product is vegan 🎉
![](https://skinsort.com/assets/icons/cruelty_free-75cb09274743a9337e335a89b9cf97e0b11d759c.png)
Cruelty Free
This product is cruelty-free 🎉
![](https://skinsort.com/assets/icons/alcohol-570e74c59474da248f6d42a24d6ee0930b01af9a.png)
Alcohol Free
This product is free of harsh alcohols 🎉
![](https://skinsort.com/assets/icons/silicon-8991c4780a9d5297394a0647dbfa6440450088c8.png)
Silicon Free
This product is free of silicons 🎉
![](https://skinsort.com/assets/icons/fragrance-71a1331fb3626f191c84a187e20119a26d035b27.png)
Fragrance Free
This product is free of fragrances 🎉
![](https://skinsort.com/assets/icons/sulfate-b3d754d88794990a8a0a7a1160d4d387950f3fa4.png)
Sulfate Free
This product is free of sulfates 🎉
![](https://skinsort.com/assets/icons/paraben-ec692662af454494635203f92aecc77d9068f3eb.png)
Paraben Free
This product is free of parabens 🎉
![](https://skinsort.com/assets/icons/oil-1f40a632c86d0e92fb015d48a7a336f766d68120.png)
Oil Free
This product is free of oils 🎉
![](https://skinsort.com/assets/icons/fungal-c59dd3d9174b5b4e51dc9555a5a78131523603b8.png)
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
![](https://skinsort.com/assets/icons/reef-c53c4638fc0ebe0e1885445148f90c590fe4ddfb.png)
Reef Safe
This product is free of ingredients that damage reefs 🎉
![](https://skinsort.com/assets/icons/allergen-829096705c31ca3fd4e51eb28898a5059278cf9a.png)
EU Allergen Free
This product is free of EU allergens 🎉
![](https://skinsort.com/assets/icons/vegan-a11526c600c53d2cc1aab377e2c33c257f4d7912.png)
Vegan
This product is vegan 🎉
![](https://skinsort.com/assets/icons/cruelty_free-75cb09274743a9337e335a89b9cf97e0b11d759c.png)
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
COSRX BHA Blackhead Power Liquid 10 ingredients
Notable Ingredients
![AHA Icon](https://skinsort.com/assets/icons/aha-d9b8ff6bd7cc768c3915d55f17ed53f2fba79aa4.webp)
This product contains 1 ingredient that may have this attribute:
![Hyaluronic Acid Icon](https://skinsort.com/assets/icons/ha-bfa903367cbb71124b1b0e10504d7d80fe1bfaa8.webp)
This product contains 1 ingredient that may have this attribute:
Benefits
![Hydrating Icon](https://skinsort.com/assets/icons/best_dry-3350eaa9bee4efa62816d588f3e9ca466e4b5dfc.webp)
![Redness Reducing Icon](https://skinsort.com/assets/icons/best_redness-e640b2fcf0e31f75f6ea7438bbe5b1b449cf8b40.webp)
This product contains 3 ingredients that may have this attribute:
![Reduces Irritation Icon](https://skinsort.com/assets/icons/best_irritation-45f6d8ebe70241e8316f431011d7649f8450d430.webp)
This product contains 2 ingredients that may have this attribute:
![Reduces Large Pores Icon](https://skinsort.com/assets/icons/best_pores-582a0ebbad24efba0421438bafc01734109a183c.webp)
This product contains 1 ingredient that may have this attribute:
![Dark Spots Icon](https://skinsort.com/assets/icons/best_spots-e2b9e75f1d64fe967fda381bd7ee542269f75b6d.webp)
This product contains 1 ingredient that may have this attribute:
![Brightening Icon](https://skinsort.com/assets/icons/best_brightening-93a4edcae1f04d230adb4ea5b849cc8ae83cf19c.webp)
This product contains 2 ingredients that may have this attribute:
Concerns
![Acne Trigger Icon](https://skinsort.com/assets/icons/worst_acne-b66f4c29e3b853fa9d9ece36529ff5fb30bcf470.webp)
This product contains 1 ingredient that may have this attribute:
![Irritating Icon](https://skinsort.com/assets/icons/worst_irritation-ced340f793512892023ca3355ec2c1fa01ed15c7.webp)
This product contains 1 ingredient that may have this attribute:
![Rosacea Icon](https://skinsort.com/assets/icons/worst_rosacea-9c356e7e29451622b0712fca7b559482cf4911d2.webp)
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
![BHA Icon](https://skinsort.com/assets/icons/bha-84d0222838c7a4f80ad9dbc0e768ba3e460f10c4.webp)
This product contains 1 ingredient that may have this attribute:
![Niacinamide Icon](https://skinsort.com/assets/icons/niacinamide-113f609fd0cc6ada1d572dd876c6f22cfe14b6e4.webp)
This product contains 1 ingredient that may have this attribute:
![Hyaluronic Acid Icon](https://skinsort.com/assets/icons/ha-bfa903367cbb71124b1b0e10504d7d80fe1bfaa8.webp)
This product contains 1 ingredient that may have this attribute:
Benefits
![Good For Oily Skin Icon](https://skinsort.com/assets/icons/best_oil-928a01703c56d31340db716b94452ce9a7c5e2f9.webp)
This product contains 2 ingredients that may have this attribute:
![Redness Reducing Icon](https://skinsort.com/assets/icons/best_redness-e640b2fcf0e31f75f6ea7438bbe5b1b449cf8b40.webp)
This product contains 1 ingredient that may have this attribute:
![Reduces Irritation Icon](https://skinsort.com/assets/icons/best_irritation-45f6d8ebe70241e8316f431011d7649f8450d430.webp)
This product contains 1 ingredient that may have this attribute:
![Reduces Large Pores Icon](https://skinsort.com/assets/icons/best_pores-582a0ebbad24efba0421438bafc01734109a183c.webp)
This product contains 2 ingredients that may have this attribute:
![Dark Spots Icon](https://skinsort.com/assets/icons/best_spots-e2b9e75f1d64fe967fda381bd7ee542269f75b6d.webp)
This product contains 1 ingredient that may have this attribute:
![Acne Fighting Icon](https://skinsort.com/assets/icons/best_acne-eb2090a9f9985b8bf0b1da5d3f3ec063c2b0dfa9.webp)
This product contains 1 ingredient that may have this attribute:
![Brightening Icon](https://skinsort.com/assets/icons/best_brightening-93a4edcae1f04d230adb4ea5b849cc8ae83cf19c.webp)
This product contains 1 ingredient that may have this attribute:
Concerns
![Rosacea Icon](https://skinsort.com/assets/icons/worst_rosacea-9c356e7e29451622b0712fca7b559482cf4911d2.webp)
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
COSRX BHA Blackhead Power Liquid 10 ingredients
Water • Mandelic Acid • Butylene Glycol • Beta-Glucan • Panthenol • Glycyrrhiza Glabra Root Extract • Prunus Amygdalus Dulcis Fruit Extract • Sodium Hyaluronate • Centella Asiatica Extract • Sorbitan Sesquioleate • Sorbitol • Glycerin • Houttuynia Cordata Extract • Chlorphenesin • Dimethyl Sulfone • Arginine • Sodium Citrate • Carbomer • Ethylhexylglycerin • Peg-60 Hydrogenated Castor Oil • 1,2-Hexanediol • Natto Gum
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
By WishTrend Mandelic Acid 5% Skin Prep Water contains this as ingredient number 3.
COSRX BHA Blackhead Power Liquid contains this as ingredient number 2.
![Helps reduce irritation Icon](https://skinsort.com/assets/icons/thumbnail/best_irritation-c15c78967d43723f8f3e3ca96701ba9d819f621d.webp)
Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.
lt is a humectant, meaning that it helps the skin attract and retain moisture.
Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolBy WishTrend Mandelic Acid 5% Skin Prep Water contains this as ingredient number 5.
COSRX BHA Blackhead Power Liquid contains this as ingredient number 7.
![Hyaluronic Acid Icon](https://skinsort.com/assets/icons/thumbnail/ha-b248760c6200450ec4c2c7eccd3f2e0bb4db903a.webp)
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateBy WishTrend Mandelic Acid 5% Skin Prep Water contains this as ingredient number 8.
COSRX BHA Blackhead Power Liquid contains this as ingredient number 8.
![Not safe for Fungal Acne Icon](https://skinsort.com/assets/icons/thumbnail/fungal-a462bf90972fa3f5faf0b30d1935c9c61de2ac12.webp)
Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArginineBy WishTrend Mandelic Acid 5% Skin Prep Water contains this as ingredient number 16.
COSRX BHA Blackhead Power Liquid contains this as ingredient number 6.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.
By WishTrend Mandelic Acid 5% Skin Prep Water contains this as ingredient number 21.
COSRX BHA Blackhead Power Liquid contains this as ingredient number 5.
Here's what our community thinks of the ingredients in these two products.
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
COSRX BHA Blackhead Power Liquid 10 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
COSRX BHA Blackhead Power Liquid 10 ingredients
Reviews
Here's what our community thinks
By WishTrend Mandelic Acid 5% Skin Prep Water 22 ingredients
Butter
Broke me out. It doesn't happen to me often but this product gave me terrible whiteheads. Really disappointed looked like a good AHA product, but...
Broke me out. It doesn't happen to me often but this product gave me terrible whiteheads. Really disappointed looked like a good AHA product, but nope my skin had other ideas. I'm not 100% sure which ingredient caused it but I'll probably be more wary of these ingredients from now on.
helldoll
Mixed feelings
Don't get me wrong, I really like it! It has beta-glucan, natto gum, and hylauronic acid which is hydrating enough meaning it wont...
Mixed feelings
Don't get me wrong, I really like it! It has beta-glucan, natto gum, and hylauronic acid which is hydrating enough meaning it wont peel while the AHA exfoliates. it doesn't make my skin peel like cosrx or paula's choice exfoliators but it does sting and tingle a bit. keep in mind i am a tazarotene (retinoid) user, so that may be why... but I never used them together, obviously. my skin is also quite sensitive but it does irritate my skin for a bit. mine also had a bit of granuals in it for some reason... weird but ya. also mine expired quickly, and it started smelling like rotten eggs. I did notice that this does help with skin texture, especially if you get closed comedones in specific areas of your face! honestly, it's quite mid. if you wanna try it, get the 30 ml and it will last you a while (if you use it 2-3 times a week)
COSRX BHA Blackhead Power Liquid 10 ingredients
sword
Gently Exfoliates
I decided to try a leave-on exfoliator rather than an exfoliating cleanser because I noticed I kept getting irritation from...
Gently Exfoliates
I decided to try a leave-on exfoliator rather than an exfoliating cleanser because I noticed I kept getting irritation from exfoliating cleansers. This Cosrx one is really gentle and pleasant. It takes a few minutes for it to absorb into my skin, but afterwards I get very little irritation and my skin texture and pore appearance have definitely improved.
tsmeu
This was only the second BHA product that I ever tried and got this because I just don't enjoy the skin feel of the Paula's Choice 2% BHA liquid...
This was only the second BHA product that I ever tried and got this because I just don't enjoy the skin feel of the Paula's Choice 2% BHA liquid (which I used on/off for years), and this was recommended by fiddysnails who has a similar skin type and concerns to mine. I do like that this leaves no residue but I just don't find this to be very effective.
I have dry combo skin and very rarely deal with breakouts - the only reason I use BHA is to help keep the pores on my nose and chin clear of sebacious filaments. I also use peptides in my routine so I don't want a BHA that I need to use every day, as I haven't been able to find conclusive information on whether acids really make peptides less effective and for now choose to use them on alternate days. I find that this product when used every other day just isn't enough to keep my pores clear of gunk. Maybe my skin just responds better to salicylic acid than to betaine salicylate which this uses.
Alternatives
Our Dupe Finder has found 28 potential alternatives that have similar ingredients to By WishTrend Mandelic Acid 5% Skin Prep Water.
See 28 alternativesOur Dupe Finder has found 6 potential alternatives that have similar ingredients to COSRX BHA Blackhead Power Liquid.
See 6 alternatives