Lead doesn't just lower IQ. It specifically damages the part of the brain that handles consequences, impulse, and judgment. Then it ages and ascends with the kid into adulthood.
The mechanism
Lead enters the developing brain by impersonating calcium. Once it is inside the neuron it sits down at the synapse, at the nmda receptor, at the protein kinase c sites, at the calcium channels that decide when a brain cell fires and when it stays quiet. The part of the brain that is still wiring those decisions in childhood is the prefrontal cortex. It is the part that runs impulse control, judgment of consequences, working memory, attention, and the brakes on emotion. It is also the part that finishes wiring last, sometime in the mid-twenties.
A kid carrying a measurable lead body burden does not just lose IQ points on a test. The test misses most of it. What the kid loses is the part that decides whether to wait, whether to think before swinging, whether to finish the sentence before interrupting, whether to read the room. That loss does not get better with age. It ages with the kid. It ascends into adulthood with them. It ascends into every adult they ever become.
What the cascade looks like at scale
One kid losing prefrontal function looks like a kid who can't sit still. Ten million kids losing it together is a country that can't sit still. The symptoms scale. The literature on this is not subtle.
Papers cited: lanphear et al, ehp 2005. Canfield et al, nejm 2003. Needleman et al, jama 1996. Needleman et al, neurotoxicology and teratology 2002. Reyes, environmental policy and reduction in juvenile crime, 2007. Lidsky and schneider, brain 2003. Mcfarland et al, pnas 2022. Mendelian-randomization replications since 2018.
Why this site exists
My name is Eric. I run FluoroSpec Inc. I did not start out trying to build a company. I started out trying to figure out where the lead was in my own house. I bought a $50,000 graphite-furnace atomic-absorption spectrometer in 2024 to test food. I ran it for two months. I learned that wet-acid digestion is the wrong tool for the job a parent actually has, which is "find the source in the room, in the next 30 seconds, before the kid touches it again."
I kept going because the parents who showed up at the early test events kept telling me the same thing. Their kid was already elevated. They were trying to figure out which thing in the house was doing it. Nobody could tell them. The swab in the hardware store was made for the housing inspector, not the parent. The lab was four weeks and $160 a sample. The XRF was $30,000 and read elemental, not bioavailable.
I built FluoroSpec to give parents the best data, the best info, the best technologies, everything designed to make them safe and to let them truly understand lead. That is the line. That is the whole thing. It is not "buy my kit." it is "you should not have to do this alone, and the tools you need to do it should not be made for a different professional."
Dr. Jessica is an ob-gyn. One of her kids was elevated. The source turned out to be the exterior spray on the house, the thing nobody walks outside to check. She then sent Eric to a farmhouse family, two kids in an old farm house, several sources across rooms. All of the kids were undetectable months later. She is a doctor. She could not get this answer from the system she works in. Nobody can.
How it works, one paragraph
FluoroSpec reagent is methylammonium bromide dissolved in isopropyl alcohol. One drop on a painted surface. If there is lead in the paint, the reagent forms a perovskite quantum dot in the seconds after contact. Those dots fluoresce bright green under UV. No lead, no glow. The kit ships with a 365 nm UV light. You point the light at the spot you just touched. You know in under a minute. It is the cleanest mechanism in this field. XRF reads elemental but cannot tell you what is bioavailable. Lab tests are accurate but four weeks. Rhodizonate swabs (leadcheck) are old chemistry with known cross-reactivity issues. The perovskite chemistry is specific to lead and specific to the surface.
The full chemistry write-up is at /pages/perovskite-lead-detection. the dust-particle white paper is at /pages/duststudy. the XRF comparison is at /pages/XRF-vs-FluoroSpec.
What to do about it, today
Three sizes. All three are the same chemistry, the same reagent, the same UV lamp, the same accuracy. The difference is how many bottles, how many surfaces, how long the kit lasts a household before refill. Pick the one that matches the size of the search.
One drip-tip bottle of FluoroSpec reagent. The 365 nm UV lamp. Enough reagent to clear a small apartment, a kid's bedroom, the kitchen, the bathroom. The entry test for a household that wants to know.
Get the Drip KitDouble of everything. Two bottles of reagent, the UV lamp, the full guide. Enough to walk a whole house and a garage, or to share with a grandparent. The kit most parents settle on after the Drip Kit runs out.
Get the Full KitTwo full kits. For the household with two locations, the grandparents who also test their house, the parent who tests for a friend, the contractor who keeps a backup. Cheapest per drop.
Get the Double KitWhat people ask
Water is a separate test and a different chemistry. FluoroSpec is for surfaces. If your concern is water, run your zip through /pages/zip-screener first. If the screener flags your service line or your utility, get a certified water lab test. The kit is for everything the water touches after it comes out of the tap. The brass fixture, the kettle, the rim of the cup, the painted spigot handle.
Do not buy a kit. Call 631-461-1838 first. That is the line. An elevated kid is not a kit job, it is a pediatric and environmental-health job, and the order of operations matters. We will walk you through it. The kit fits in after the doctor and the health department, not before.
They work for paint chips and they were a good tool in 1988. The chemistry cross-reacts with copper and barium, the swab cannot tell you about a fired ceramic glaze, and the protocol was designed for inspectors clearing a unit, not parents looking for the source. FluoroSpec is the same chemistry the housing inspector uses upgraded for a parent in their own kitchen. The comparison is at /pages/XRF-vs-FluoroSpec.
365-day refund. The reagent is consumable, so we do not ask for a return. You email Eric@DetectLead.com, we refund the order. Full year. That is the policy. The refund policy is at /policies/refund-policy.
Recap
If all the kit did was tell you which one thing in your house is loading your kid, would that be worth $50.
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