Function of Beauty Straight Hair Shampoo
Lower concern. Typical shampoo with no known PFAS drivers, but brand silent on sourcing.
This liquid cosmetic has no protective coatings, water-resistant treatments, or fluorinated additives. The brand doesn't disclose PFAS status. As a rinse-off product without water-resistant or grease-resistance claims, it presents lower PFAS risk than waterproof items.
We flunk more products than we pass. This one earned its grade. How we grade
Material
aqueous shampoo formulation; no protective coating or water-repellent coating treatment typical
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Function of Beauty Straight Hair Shampoo is made of, ingredients and materials
Function of Beauty Straight Hair Shampoo is a water-based liquid formulation, typically containing surfactants (cleansing agents), preservatives, conditioning polymers, and fragrance or fragrance compounds. Aqueous shampoos lack the coating, heat exposure, or chemical reactivity that trigger hazards in cookware, textiles, or sealed packaging. The primary exposure route is dermal (skin) and respiratory (inhalation during use), both presenting lower systemic risk than ingestion or prolonged contact with contaminated food.
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 sensitizers
Function of Beauty Straight Hair Shampoo contains fragrance components; undisclosed fragrance blends are common in this brand's formulations. Contact dermatitis or respiratory irritation is possible in individuals with fragrance sensitivity, though incidence is low in the general population.
1,4-dioxane (preservative byproduct)
Some shampoo preservative systems or emulsifiers can generate trace 1,4-dioxane as a manufacturing byproduct. Function of Beauty does not publicly disclose testing for this contaminant, and the brand's silent stance on ingredient purity leaves this uncertain.
Eye and mucous membrane irritation from surfactants
Anionic surfactants (primary cleansing agents) can cause stinging if contact with eyes occurs; this is use-related, not a formulation defect. The product label should carry standard eye-contact warnings.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Preservative system stability and microbial growth
Aqueous shampoos require preservatives (e.g., phenoxyethanol, parabens, or alternatives) to prevent bacterial and fungal growth. No specific preservative failures or contamination events are recorded for this product; standard formulation practices minimize this risk.
Heavy metals
Liquid shampoos typically contain minimal pigment; lead or cadmium contamination is not a recognized hazard class for this product type. Function of Beauty does not claim heavy-metal testing, but the category risk is low.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Function of Beauty markets customized personal care formulations and maintains a website presence but does not publicly disclose detailed ingredient sourcing, third-party certifications (e.g., EWG Verified, Leaping Bunny), or independent safety testing results. No major recalls or documented safety controversies involving this specific product or brand are recorded in FDA or CPSC databases. The brand's silence on PFAS sourcing is typical for the shampoo category but represents a gap in transparency rather than evidence of contamination.
How it compares in its category
Liquid shampoos are among the lowest-risk personal care formats because they avoid the talc contamination risk present in powders and the complex pigment chemistry of color cosmetics. Function of Beauty sits in the mid-market segment; it lacks third-party certifications (like Ecocert or COSMOS) that some premium or eco-focused competitors carry, but also avoids the formulation extremes (e.g., harsh sulfates or high preservative loads) more common in budget brands. Category-wide, shampoo hazards are minimal if preservative systems remain stable.
If you buy it
Store the bottle in a cool, dry location away from direct sunlight to preserve preservative efficacy and prevent microbial growth over 12-24 months of use. Avoid contact with eyes; rinse thoroughly with water if exposure occurs. If skin irritation develops (redness, itching), discontinue use and consult a dermatologist, as this may signal sensitivity to fragrance or preservative compounds. Replace if odor, separation, or discoloration occurs, which indicates preservative breakdown.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Function of Beauty has made none
Formulations change between production runs, so check the current label. How we grade.
More shampoo 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.