Brain Butter Wax Rub On vs PS10 Yellow Wax: which is safer?

Swix PS10 Yellow Wax is our pick: better on PFAS and on the overall hazard picture.

Spiral Wax Co. Brain Butter Wax Rub On

Spiral Wax Co.

Brain Butter Wax Rub On

PFAS grade

Excellent 85/100

Overall grade

Good 69/100

Verdict

Buy with care

Hazard flags

⚑ 4

Material

wax blend (composition unspecified)

Confidence

62%

PossibleFragrance allergens and undisclosed aromatics

PossibleBacterial or mold growth from water contamination

PossibleSkin sensitization from undisclosed botanical extracts

Our pick

Swix PS10 Yellow Wax

Swix

PS10 Yellow Wax

PFAS grade

Excellent 100/100

Overall grade

Excellent 84/100

Verdict

Buy

Hazard flags

⚑ 4

Material

Hydrocarbon-based ski wax (paraffin/synthetic blend)

Confidence

72%

PossibleCombustion by-products during hot application

PossibleSkin and eye contact irritation

PossibleIngestion toxicity (accidental exposure)

Where these two actually differ

  • We flag Fragrance allergens and undisclosed aromatics, Bacterial or mold growth from water contamination, Skin sensitization from undisclosed botanical extracts and Composition variability and batch consistency on the Spiral Wax Co. and not on the Swix.
  • We flag Combustion by-products during hot application, Skin and eye contact irritation, Ingestion toxicity (accidental exposure) and Microabrasive particulates from worn base or scraping on the Swix and not on the Spiral Wax Co..
  • The Spiral Wax Co. is wax blend (composition unspecified) where the Swix is Hydrocarbon-based ski wax (paraffin/synthetic blend), which is most of the difference in these two grades.

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More ski & sports wax: see the full ranking