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Plastic-Free Rating
Sunscreen & Deodorant
Sunscreen & Deodorant·Kosas

Chemistry AHA Serum Deodorant

B
PFR Grade
Good — mostly plastic-free with minor concerns
While the formula is excellent with natural and effective ingredients, the plastic roll-on ball and cap prevent it from being entirely plastic-free. The glass bottle is recyclable.
PFR Recommended

Kosas Chemistry AHA Serum Deodorant is a clean, aluminum-free, and baking soda-free deodorant that uses a blend of AHAs to fight odor. It comes in a glass bottle with a plastic roll-on applicator.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials
8
Packaging
7
Transparency
7
Durability
8

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Last updated: April 4, 2026

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Low Exposure Risk — Why This Product Category Matters

While the formula is excellent with natural and effective ingredients, the plastic roll-on ball and cap prevent it from being entirely plastic-free. The glass bottle is recyclable.

Why We Recommend This Product

Kosas's Chemistry AHA Serum Deodorant is made from Glass bottle with roll-on applicator (plastic ball). Ingredients include AHAs (shikimic acid, mandelic acid, lactic acid), aloe vera juice. Aluminum-free, baking soda-free, paraben-free, sulfate-free, phthalate-free, fragrance-free.. Certifications: Vegan, Cruelty-free (Leaping Bunny Certified).

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