By WishTrend Mandelic Acid 5% Skin Prep Water Versus The INKEY List Mandelic Acid Treatment

By WishTrend Mandelic Acid 5% Skin Prep Water Versus The INKEY List Mandelic Acid Treatment

This smoothing exfoliator is formulated around Mandelic Acid and Beta-Glucan to refine skin texture and calm redness.

This brightening treatment is formulated around Mandelic Acid and Retinol to fade the look of dark spots and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

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

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

Propanediol

Coco-Caprylate/Caprate

Cetearyl Alcohol

Sodium Hydroxide

Caprylic/Capric Triglyceride

Glyceryl Stearate

Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters

Sodium Stearoyl Glutamate

Phenoxyethanol

Sodium Stearoyl Lactylate

Benzyl Alcohol

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Copernicia Cerifera Cera

Retinol

Polysorbate 20

Dehydroacetic Acid

Helianthus Annuus Seed Oil

Trisodium Ethylenediamine Disuccinate

Ceramide AP

Caprylyl Glycol

Disodium Cocoamphodiacetate

Tocopherol

Xanthan Gum

Ethyl Ferulate

Humulus Lupulus Extract

Water, Propanediol, Mandelic Acid, Coco-Caprylate/Caprate, Cetearyl Alcohol, Glycerin, Sodium Hydroxide, Caprylic/Capric Triglyceride, Glyceryl Stearate, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Sodium Stearoyl Glutamate, Phenoxyethanol, Sodium Stearoyl Lactylate, Benzyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Copernicia Cerifera Cera, Retinol, Polysorbate 20, Ethylhexylglycerin, Dehydroacetic Acid, Helianthus Annuus Seed Oil, Trisodium Ethylenediamine Disuccinate, Ceramide AP, 1,2-Hexanediol, Caprylyl Glycol, Disodium Cocoamphodiacetate, Tocopherol, Xanthan Gum, Ethyl Ferulate, Humulus Lupulus Extract

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Mandelic Acid is an alpha hydroxy acid (AHA).

Like other AHAs, it helps exfoliate the surface of the skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.

Mandelic acid helps with:

Due to it having a larger molecular size than glycolic acid, mandelic acid is able to penetrate the skin more slowly and evenly. This makes it gentler and less irritating, making it a great option for sensitive or beginner skin.

Despite being milder, mandelic acid is still an effective exfoliant that improves skin texture and tone over time.

What makes mandelic acid stand out from other AHAs? It has antibacterial and antioxidant properties.

These traits make it a great option for acne-prone or problem skin by reducing active breakouts and fading post-acne marks. Studies show that mandelic acid (especially when combined with salicylic acid) can significantly reduce pimples and hyperpigmentation while causing fewer side effects than stronger acids.

Mandelic acid is effective in concentrations of 5% and up with an ideal pH range of 3-4 for at-home use.

Like other AHAs, it’s important to wear sunscreen daily to protect your newly exfoliated skin.

However, unlike glycolic acid, mandelic acid is light-sensitive. Be sure your mandelic acid is packaged in opaque containers to ensure it stays stable and effective.

In short, mandelic acid is a gentle yet powerful AHA that exfoliates, brightens, and helps clarify skin while keeping irritation low. Its antibacterial action makes it especially beneficial for those with acne-prone, sensitive, or uneven skin, offering smoother, clearer, and more even-toned results over time.

Read more about some other popular AHA's here:

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

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