Sigma Beauty Review, Is Sigma Beauty Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 3 graded products, Sigma Beauty averages Good (60/100). On disclosure, the brand says nothing publicly about PFAS. 2 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Sigma Beauty Good or better, safest first
Sigma Beauty
Infinity Point Lipstick
wax, pigments, oils (standard lipstick)
Lead
Lipsticks may contain trace metals from synthetic iron oxides, mica, or lake pigments.…
Fragrance allergens and undisclosed fragrance ingredients
Sigma lipsticks contain fragrance listed generically in the formula. Fragrance allergens…
1,4-dioxane (manufacturing residue in emulsifiers/surfactants)
Lipsticks containing polyethylene glycol (PEG) derivatives or ethoxylated ingredients may…
Lip irritation or allergic reaction from fragrance or wax components
Anecdotal user reports exist for mild irritation from Sigma lipsticks, though this is…
Lower concern. Standard lipstick formulation unlikely to contain PFAS.
⚠Risky category by default
Sigma Beauty
Lip Cream
cosmetic cream base, likely waxes and oils
Fragrance allergens and sensitizers
Lip creams frequently contain fragrance compounds or flavoring oils; Sigma product…
Preservative irritation or overgrowth risk
Lip products stored in pots or tubes exposed to fingers/air can accumulate bacteria if…
Lower concern; no known PFAS-prone ingredients typical of lip creams.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Sigma Beauty
Liquid Lipstick
liquid pigment blend, waterproofing agents unspecified
Lead
Cosmetic-grade iron oxides and synthetic colorants used in lipsticks are not routinely…
Formaldehyde / VOCs
Liquid lipsticks commonly use formaldehyde releasers (e.g., DMDM hydantoin…
Fragrance allergens and undisclosed components
Sigma Beauty liquid lipsticks are fragranced; fragrance is a known skin sensitizer and…
1,4-dioxane contamination (from ethoxylated emulsifiers)
Acrylate-based waterproofing agents often require ethoxylated emulsifiers to stabilize…
No public PFAS disclosure.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →