Function of Beauty Customizable Haircare for Coily Hair - Repair, Hydrate & Define Curls with Vegan, Gluten-Free Shampoo & Conditioner
Lower concern for PFAS. Typical rinse-off haircare with no water-resistant or waterproofing triggers.
These liquid cosmetics have no known Teflon-family coating coatings, water-repellent treatments, or nonstick surfaces that are main PFAS vectors. The brand makes no PFAS claims and provides no third-party testing data. Standard cosmetic formulations carry lower inherent PFAS risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
aqueous solution (shampoo/conditioner); typical cosmetic surfactants, humectants, conditioning agents
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Function of Beauty Conditioner is made of, ingredients and materials
Function of Beauty's shampoo and conditioner are aqueous solutions containing surfactants (detergents), humectants (glycerin, panthenol), and conditioning polymers typical of mainstream haircare. The product is formulated as rinse-off cosmetics, meaning exposure duration is brief and most ingredients wash away without absorption or retention on skin. Vegan formulation signals exclusion of animal-derived proteins and lanolin, replacing them with plant-based or synthetic alternatives; gluten-free labeling appeals to scalp-sensitive consumers but carries no direct safety implication for non-celiac users.
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.
Formaldehyde / VOCs
Rinse-off haircare frequently contains preservatives such as DMDM hydantoin, imidazolidinyl urea, or diazolidinyl urea, which slowly release trace formaldehyde to prevent bacterial and fungal growth. Exposure during brief shampooing is minimal and well below dermal irritation thresholds; no public data on this product's specific preservative system.
Source, ATSDR ↗Fragrance allergen sensitization
Shampoos marketed for coily hair often contain fragrance blends (parfum) with essential oils or synthetic musks that can trigger contact dermatitis or scalp sensitization in susceptible individuals, particularly with repeated exposure. Function of Beauty's ingredient transparency should allow pre-purchase review; patch testing on inner arm is recommended for users with sensitive scalp.
Microbial contamination from improper storage or preservation breakdown
Any aqueous personal-care product is vulnerable to bacterial or mold growth if stored in warm, humid conditions or if preservative system degrades over time. This risk is product-agnostic and managed by the user through cool storage and timely replacement; no specific formulation failure is on record for this brand.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
Shampoos are not typically pigmented or pearlescent and thus do not require colorants or mica likely to harbor cadmium or lead. No evidence that Function of Beauty formulations contain these additives; rinse-off nature limits any exposure window.
Source, FDA ↗1,4-dioxane contamination from surfactant or emulsifier synthesis
1,4-dioxane is a byproduct of ethoxylation (production of common surfactants like sodium laureth sulfate); the FDA allows trace residues in cosmetics. Function of Beauty has not published 1,4-dioxane testing results, and no regulatory action documents the presence of elevated levels; contamination is not established for this product.
How is this PFAS grade calculated?
The brand's record and disclosure
Function of Beauty markets customizable haircare with emphasis on ingredient transparency but has not published detailed PFAS or heavy-metal testing data publicly. The brand holds no third-party certifications (e.g., EWG Verified, Leaping Bunny) on record. No significant recalls or regulatory actions against this product line have been documented. Ingredient lists are available online, enabling independent review, but the brand's silence on PFAS testing is typical of mid-market haircare and does not indicate contamination, only lack of voluntary disclosure.
How it compares in its category
Rinse-off shampoos and conditioners carry inherently lower risk than leave-on products because contact time is measured in minutes and residue is minimal. Function of Beauty's vegan positioning aligns with consumer demand but does not confer safety advantages over conventional formulas; both may contain identical surfactants and polymers. Customization (ingredient selection) is a marketing feature that does not alter the fundamental safety profile of individual components. Compared to drugstore brands, Function of Beauty's transparency on ingredient sourcing is competitive but unremarkable.
If you buy it
Use as directed, wet hair, apply small amount, massage scalp briefly, rinse thoroughly with water. No heat or prolonged contact is required; standard shampooing poses no elevated risk. Discontinue if scalp rash, itching, or irritation develops within one week, as allergic response to fragrance, botanical extracts, or preservatives can occur in sensitive individuals. Store in cool, dry conditions and replace when product separates, discolors, or odor changes, indicating microbial growth or ingredient degradation (typical shelf life 12-24 months unopened).
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.