Minimalist Nonapeptide + AHA 6% Underarm Roll-On Versus Kosas Chemistry AHA Serum Deodorant

Minimalist Nonapeptide + AHA 6% Underarm Roll-On Versus Kosas Chemistry AHA Serum Deodorant

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

1,2-Hexanediol

Mandelic Acid

Triethyl Citrate

Dimethyl Isosorbide

Propanediol

Glycolic Acid

Ethoxydiglycol

Hydrolyzed Wheat Protein

Salicylic Acid

2-Methyl 5-Cyclohexylpentanol

Decylene Glycol

Sodium PCA

Pentylene Glycol

Nonapeptide-1

Hydroxyethylcellulose

Sodium Hydroxide

Phenoxyethanol

Glycyrrhiza Glabra Root Extract

Ethylhexylglycerin

Trisodium Ethylenediamine Disuccinate

Water, 1,2-Hexanediol, Mandelic Acid, Triethyl Citrate, Dimethyl Isosorbide, Propanediol, Glycolic Acid, Ethoxydiglycol, Hydrolyzed Wheat Protein, Salicylic Acid, 2-Methyl 5-Cyclohexylpentanol, Decylene Glycol, Sodium PCA, Pentylene Glycol, Nonapeptide-1, Hydroxyethylcellulose, Sodium Hydroxide, Phenoxyethanol, Glycyrrhiza Glabra Root Extract, Ethylhexylglycerin, Trisodium Ethylenediamine Disuccinate

Aloe Barbadensis Leaf Juice

Glycerin

Polyglyceryl-4 Cocoate

Shikimic Acid

Lactic Acid

Palmitoyl Tripeptide-5

Hyaluronic Acid

Citric Acid

Tartaric Acid

Xanthan Gum

Potassium Sorbate

Sodium Benzoate

Cananga Odorata Flower Oil

Citrus Aurantium Amara Flower Oil

Citrus Paradisi Peel Oil

Simmondsia Chinensis Seed Oil

Benzyl Benzoate

Limonene

Linalool

Water, Aloe Barbadensis Leaf Juice, Glycerin, Mandelic Acid, Polyglyceryl-4 Cocoate, Sodium Hydroxide, Shikimic Acid, Lactic Acid, Palmitoyl Tripeptide-5, Hyaluronic Acid, Citric Acid, Tartaric Acid, Xanthan Gum, Potassium Sorbate, Sodium Benzoate, Cananga Odorata Flower Oil, Citrus Aurantium Amara Flower Oil, Citrus Paradisi Peel Oil, Simmondsia Chinensis Seed Oil, Benzyl Benzoate, Limonene, Linalool

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Ingredients Explained

These ingredients are found in both products.

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

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:

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

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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