hello Kids Fluoride Free Toothpaste Fresh Watermelon
At a glance
Summary
hello Kids Fluoride Free Watermelon scores 5/100. Marketed as 'choose friendly' kids toothpaste — fluoride-free, SLS-free, dye-free — yet Lead Safe Mama (Feb 2025) detected 493 ppb lead (highest among kids fluoride-free pastes tested), 19 ppb mercury, and 6 ppb arsenic. Severe enough that Lead Safe Mama formally REPORTED these results to the FDA. Suspected sources: hydrated silica + titanium dioxide. Owned by Colgate-Palmolive Company (acquired hello in 2020).
Contaminants 4
Source: Lead Safe Mama 2025
Lead 493 ppb High
Detected at a high level — at or above health-based exposure limits. Regular exposure at this level is a genuine health concern. No safe level of lead exposure exists per CDC, AAP, and WHO; chronic ingestion is associated with lowered IQ, neurodevelopmental harm, and cardiovascular and kidney effects. Suspected sources: hydrated silica abrasive feedstock and titanium dioxide pigment.
Lead Safe Mama 3rd-party lab testing (SGS North America, Feb 2025, AOAC 2015.01) detected 493 ppb lead — the HIGHEST lead reading among the kids fluoride-free toothpastes tested in the 2025 survey, in a product explicitly designed for children to swallow safely. Severe enough that Lead Safe Mama formally REPORTED these results to the FDA.
Mercury 19 ppb Low
A low level of mercury — present but modest; a sourcing-quality note rather than a safety concern at typical intake.
Lead Safe Mama 3rd-party lab testing (Feb 2025) detected 19 ppb mercury.
Arsenic 6 ppb Trace
A trace amount of arsenic — within the range expected from normal soil uptake/processing and below our concern threshold.
Lead Safe Mama 3rd-party lab testing (Feb 2025) detected 6 ppb arsenic.
Cadmium <5 ppb Not detected
Not detected — below the laboratory's detection limit. This is the strictest possible result: no measurable amount was found.
Lead Safe Mama 2025 lab testing reported cadmium below the 5 ppb low threshold of detection — no cadmium measurable in this product.
Key ingredients 14
Titanium DioxideVery Bad
Whitening pigment (CI 77891). Banned as a food additive in the European Union since 2022 after EFSA concluded it cannot be considered safe due to genotoxicity concerns from nanoparticle fractions. IARC Group 2B (possibly carcinogenic to humans) when inhaled. Lead Safe Mama 2025 also implicates titanium dioxide as a likely co-source of the lead contamination detected in this product. No nutritional or oral-health justification — purely cosmetic in a kids' toothpaste.
See more about Titanium Dioxide →Potassium SorbateBad
Synthetic preservative — flagged in daily-use products.
See more about Potassium Sorbate →SorbitolNeutral
Sugar alcohol humectant; non-cariogenic.
See more about Sorbitol →Hydrated SilicaNeutral
Standard mild toothpaste abrasive — safe at typical use.
See more about Hydrated Silica →WaterNeutral
Solvent base.
See more about Water →ErythritolNeutral
Natural non-caloric sweetener; recent cardiovascular-association studies keep it at neutral.
See more about Erythritol →Flavor (Natural Watermelon)Neutral
Natural watermelon flavor blend per the brand's 'no artificial flavors' commitment.
See more about Flavor (Natural Watermelon) →Xanthan GumNeutral
Plant-fermentation-derived thickener; inert and safe.
See more about Xanthan Gum →Stevia Rebaudiana Leaf ExtractNeutral
Plant-derived natural sweetener; safer than synthetic sweeteners like saccharin or sucralose.
See more about Stevia Rebaudiana Leaf Extract →Aloe Barbadensis Leaf JuiceGood
Natural soothing and anti-inflammatory plant juice; gentle on gums.
See more about Aloe Barbadensis Leaf Juice →GlycerinGood
Humectant that draws moisture to the skin — a beneficial base ingredient.
See more about Glycerin →Calcium GlycerophosphateGood
Calcium and phosphate source that supports enamel remineralization. Particularly relevant in a fluoride-free formula because it provides one of fluoride's main mechanisms (mineral deposition) without fluoride's neurotoxicity concerns.
See more about Calcium Glycerophosphate →XylitolVery Good
Natural sweetener that inhibits cavity-causing Streptococcus mutans growth and reduces plaque adhesion; clinically associated with reduced cavity rates in children.
See more about Xylitol →Lauryl GlucosideVery Good
Coconut/palm and corn-derived gentle surfactant used as a non-irritating SLS alternative.
See more about Lauryl Glucoside →Get the full breakdown in the Scout appTake Scout shopping
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