Дезодорант Chemistry Aha
Low-Medium risk typical deodorant without known PFAS drivers.
Kosas' Chemistry Aha lacks advertised water-resistant or nonstick coatings triggering PFAS use. No public PFAS claims or third-party testing exist.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Standard cosmetic formulation (deodorant base)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What Дезодорант Chemistry Aha is made of, ingredients and materials
Chemistry Aha is a standard stick deodorant using a cosmetic base of waxes, oils, and mineral or synthetic powders typical of mass-market deodorants. The 'Aha' designation likely refers to alpha-hydroxy acids or similar actives for odor control rather than antiperspirant aluminum. This formulation avoids aluminum chlorohydrate (the antiperspirant compound) but still relies on absorbent carriers and fragrance systems common across the category. No unusual chemical profile for a non-antiperspirant deodorant has been established in available records.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Fragrance allergens and skin sensitization
Deodorants typically contain fragrance blends (parfum) that may include undisclosed allergens. No specific fragrance composition for Chemistry Aha is publicly available, so individual sensitivity risk cannot be quantified; users with fragrance sensitivity should request the full INCI list.
1,4-dioxane as fragrance contaminant
Deodorants with fragrance systems may inadvertently contain 1,4-dioxane, a synthetic byproduct of cosmetic ingredient processing. Kosas does not disclose whether suppliers conduct 1,4-dioxane testing, so this risk cannot be ruled out in this product line.
Skin irritation from exfoliating acids (if AHA content is high)
The 'Aha' branding suggests alpha-hydroxy acid inclusion for odor or skin benefits. High-strength AHAs in underarm applications can cause irritation, sensitization, or dermatitis, especially with frequent use or on compromised skin.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
Standard deodorants often use mineral powders that may carry trace lead, cadmium, or arsenic. No recalls or test results specific to this product exist; risk is typical for unverified mineral-based cosmetics without heavy-metal screening claims.
Source, FDA ↗Formaldehyde / VOCs
Non-antiperspirant deodorants are lower-risk for broad-spectrum preservative systems, but formaldehyde-releaser compounds (e.g., imidazolidinyl urea) may be present. No ingredient list or preservation system for Chemistry Aha is publicly detailed.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
Kosas is a smaller, direct-to-consumer beauty brand with minimal public disclosure on ingredient sourcing, manufacturing standards, or third-party testing for cosmetics. No major recalls, safety controversies, or certifications (organic, cruelty-free labels) are documented in established safety databases for this product line. The brand does not prominently advertise PFAS-free status or heavy-metal testing transparency, which is standard silence rather than a red flag in the deodorant category. Limited brand history makes independent verification of manufacturing controls difficult.
How it compares in its category
Non-antiperspirant deodorants like this avoid aluminum-based compounds entirely, placing it in a lower-risk subcategory than aluminum-based alternatives. However, it offers no documented advantage over comparable natural or certified clean-beauty deodorants in terms of contaminant screening. Most deodorants in this format carry similar hazard profiles around fragrance allergens and trace heavy metals in mineral fillers. Without third-party certification or brand transparency, it is functionally equivalent to dozens of unverified competitors at similar price points.
If you buy it
Use as directed on clean, dry skin; avoid application immediately after shaving to reduce irritation from potential fragrance actives. Store in a cool, dry place away from direct heat, as wax-based sticks can soften or separate if exposed to high temperatures. Replace when depleted or if discoloration or separation appears, which may indicate degradation of the base. Discontinue use if skin irritation, rash, or allergic reaction develops, and patch-test on a small area first if you have sensitive skin or known fragrance allergies.
What is not known about PFAS in this product?
- Basis
- Model estimate, 62% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kosas has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Дезодорант Chemistry Aha?
- mineral-based powder blend (arrowroot, magnesium hydroxide, mica)
- We found no PFAS statement from the brand
- Skin irritation from magnesium hydroxide alkalinity
- cosmetic formulations, primary ingredients listed
- A third party reports verifying it as PFAS-free
- Fragrance allergens (natural essential oils)
2 hazards checked on this product, all on its full breakdown.
- natural mineral powders, plant-based actives, beeswax
- We found no PFAS statement from the brand
- Beeswax purity and contamination
2 hazards checked on this product, all on its full breakdown.
More deodorant grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.