the kit, demonstrated

when there's lead, it glows. when there isn't, it doesn't.

one drop. 30 seconds. fluoro-spec finds lead pigment on dishes, paint, dust, toys, and solder joints. the full kit does spray + drip + UV in one bag.

See the kits ↓
§ WHAT'S IN THE KIT

One kit. Two applicators. 500 + 3,600 tests.

Spray for paint, dust, and surfaces. Drip for dishes, mugs, and specific items. One 365 nm UV flashlight. One color reference card. All in a small zip pouch.

Fluoro-Spec spray bottle
01 · Spray bottle

For surfaces, dust, paint

500 sprays (with the extender ring — installed after 5/2025; the small ring is in the bag if you purchased before). Walls, floors, windowsills, soil, exposed paint, paint dust.

Fluoro-Spec drip tip bottle
02 · Drip tip bottle

For items you already suspect

3,600 taps. Tap the tip on an object — a tiny drop releases. Dishes, mugs, toys, solder joints, screws, jewelry. Small tested area, huge test count.

365 nm UV flashlight
03 · 365 nm UV

Shine. Read the glow.

Professional-grade UV inspection light, batteries included. Plus a non-toxic reference card (assistant for reading the glow).

§ 01 · WHAT IT FINDS

Six ways lead hides in a normal home.

Perovskite fluorescence chemistry — methylammonium bromide in isopropanol. When the reagent meets lead, tiny quantum dots form and glow bright green under 365 nm UV. Non-lead surfaces don't glow.

Lead dust glowing green under UV on a windowsill Paint dust

Windowsills. Baseboards. Floors.

Paint friction around windows and doors grinds lead into fine dust the kids breathe and touch. Spray a patch. If dust sparkles, you know.

Drip of reagent on a painted dish decoration glowing green Dishes & mugs

Decorated plates, cups, bowls.

Painted ceramic decorations can leach lead into food. Tap the drip bottle on the painted pattern. Only the decoration glows — the white ceramic stays dark.

Baby bottle glowing green under UV showing lead Bottles & sippy cups

Imported, vintage, thrifted.

Paint on the outside, glaze on the inside. One drop tells you whether the decoration on your kid's water bottle is a problem.

Drip on a pipe solder joint glowing green for lead Pipe solder & brass

Under sinks. Behind the toilet.

Solder joints on old copper pipe are a common lead source in drinking water. One drip on the joint shows whether you're looking at a lead-tin or a tin-only solder.

Bathtub glaze glowing green under UV light Bathtub glaze

Refinished or antique tubs.

Pre-1995 glazes can release lead into bathwater — especially after a DIY re-glaze. Spray a patch. Glow means skip the bubble bath until you resurface it.

Ceramic cup decoration glowing for lead Toys & figurines

Painted metal. Costume jewelry.

Vintage die-cast, painted wooden blocks, beaded jewelry — anything a child might chew on. Drip on an inconspicuous corner.

§ 02 · HOW IT WORKS

Three steps. Thirty seconds. One honest answer.

  1. step 01

    Spray or drip

    Two applicators, one chemistry. Use the spray bottle for walls, floors, paint dust, and windowsills. Use the drip bottle for dishes, toys, solder joints, and specific items you're already suspicious of.

    Spraying reagent on a painted wall
  2. step 02

    Shine the UV light

    Any 365 nm UV works — the kit includes one. 30-second dwell. A dark room isn't required for obvious hits, but helps for marginal ones.

  3. step 03

    If it glows green, it's lead

    Perovskite quantum-dot fluorescence. Non-lead surfaces don't glow. There is no false-positive family of materials we know of — no rust, no soap, no common pigment.

    Pyrex bowl glowing green under UV for lead
§ 03 · PICK YOUR KIT

Three ways to start. One works for most parents.

You're on the Full Kit — the one Eric recommends for almost everyone. If you only want to test a few specific items, drop down to the Drip Kit. If you're buying for family, the Double is two complete kits for the price of one.

Lightest start

Drip Tip Bottle Kit

For when you already know what you're suspicious of.

Drip tip bottle kit
  • 3,600 taps — small area per test, huge test count
  • Drip bottle + UV flashlight + reference card
  • Best for dishes, mugs, toys, solder joints
  • No spray bottle — not for paint dust
$50.00
Or open Drip product page
YOU'RE HERE Most popular

Full Fluoro-Spec Kit

Spray + drip + UV. The one Eric recommends.

Full Fluoro-Spec kit
  • 500 sprays (with ring) + 3,600 taps
  • Spray + drip + UV + reference card + pouch
  • Paint, dust, dishes, water-line joints, soil, toys
  • "Your problem is my problem" — free XRF follow-up
$99.00
BEST VALUE · $60 OFF For families

Double FS Kit

Two complete Full Kits. Run one, share one, refill one.

Two Fluoro-Spec kits
  • 2× everything — spray, drip, UV, card
  • $99 off vs. two separate Full Kits
  • 1,000 sprays + 7,200 taps total
  • For the parent + spouse + grandparents
$198$99.00

Or — 10-pack for $222 ($22.20 each) — contractors, RRP crews, HUD grantees, educators.

§ 04 · REAL CUSTOMERS

What people found in their own homes.

Ceramic cup glowing under UV
Featured review · mom of a 3-year-old

"I found lead in his favorite cup."

Andrea · verified purchaser · Jan 2026

★★★★★

I ordered this because my pediatrician said my son's lead level was slightly elevated and she couldn't tell me why. We ran the kit through the house and the drip bottle lit up the decoration on his favorite plastic-handled cup. I never would have guessed.

We pulled the cup, retested three months later, and his level dropped. I'm not exaggerating when I say this kit changed a problem we didn't know we had.

More verified reviews

From Judge.me and Amazon — 132+ total, 4.6 / 5 average.

★★★★★

Must have for anxious moms.

It helped us identify that lead paint was only in one specific area (our closet), and now we know exactly what to address. The swabs gave false positives — this is far more reliable.

Emily · Jan 2026 · ✓ verified · amazon
★★★★★

Found my kiddo's bookshelf was positive.

So glad I ordered this. Found my kiddo's toy/book shelf was positive for lead paint. I never would have known otherwise.

Sara · Apr 2026 · ✓ verified · amazon
★★★★★

Game changer.

Suspected there was lead in my house, but thanks to this kit I know exactly where (plot twist, it wasn't where I thought!). Now with two little ones I have more peace of mind.

Angelina · Feb 2026 · ✓ verified · judge.me
★★★★★

75-year-old house — finally a straight answer.

I've tried every lead test on the market over 20 years. This method blows them all away. Results in seconds, no false positives, and I can trust what I'm seeing.

Andrew · Jun 2025 · ✓ verified · amazon
★★★★★

Spray bottle found dust we missed.

XRF'd the house last year, clean-ish. Sprayed the window trough and the dust lit up bright green. The XRF reads the paint, the spray reads the dust that blew off the paint. Both matter.

Marc · Mar 2026 · ✓ verified · judge.me
★★★★★

Eric answered my email himself.

Had a weird result on a mug. Emailed Eric. He asked me to mail it in. He XRF'd it for free, sent me back the spectrum, explained the ppm. That's not normal customer service — that's a scientist solving my problem.

Jen · Nov 2025 · ✓ verified · judge.me

Read all 132+ verified reviews →

§ 05 · VS. EVERYTHING ELSE

How the Full Kit compares.

Home XRF rental Lead Check swabs Lumetallix flashlight Fluoro-Spec (us)
Price ~$400 / day ~$0.80 / swab ~$60 $99 kit · ~1.3¢ per test
Time per test ~2 min ~3 min ~30 sec ~30 sec
Works on dishes Yes Sometimes (color bleed) No (pigment masks) Yes — drip bottle
Works on dust No (paint only) No Rarely Yes — spray bottle
Works on paint Yes (quantitative) Yes (swab) Only thick layers Yes
Made by Big labs 3M Marketing company Scientist who XRFs your sample free if it's weird
Published chemistry n/a n/a Not published Yes — Van Geen et al. 2024, Anal Chim Acta

Fluoro-Spec detects lead (qualitative glow). It does not quantify lead — for ppm numbers, we run the XRF ourselves. Send us a sample; it's part of the guarantee.

the number that matters

2.2 µg/day. That’s the line.

The FDA Interim Reference Level is 2.2 µg/day for a child, 8.8 µg/day for an adult. That’s the daily intake your body can clear without measurable harm.

A single painted plate at the rim can leach enough lead in a meal to put a 2-year-old over the line. One dusty windowsill in a pre-1978 home can do it in a week. One solder joint in a kitchen faucet can do it every glass of water.

ppb on a lab report is concentration. µg/day is dose. Concentration tells you lead is present. Dose tells you whether the source matters. This kit finds the source.

not buying today?

find out your kid’s µg/day first.

a 60-second quiz that returns the FDA IRL number for your specific household. dishes, paint, baby food, water. no kit needed to take it.

take the µg/day quiz →

or request the SDS · scan a baby-food lot

Ingredients & Safety

Reagent ingredients

  • Isopropyl alcohol (CAS 67-63-0) — ≥97.25%
  • Methylammonium bromide (CAS 6876-37-5) — 1.5%
  • Mandelic acid (CAS 90-64-2) — 1.25%

Regulatory status

Methylammonium bromide, the active ingredient, is manufactured and imported by Fluoro-Spec Inc. under a U.S. EPA-authorized Low Volume Exemption (LVE) granted under Section 5 of the Toxic Substances Control Act (40 CFR 723.50). This authorization is specific to Fluoro-Spec Inc.

The product’s methylamine content is held below the concentration threshold for exempt chemical mixtures under DEA regulations (21 CFR 1310.12). This product is not intended or suitable for use as a chemical precursor.

Handling

The reagent is a flammable liquid. Keep away from heat, sparks, and open flames. Use in a well-ventilated area. Avoid contact with eyes; wash skin after use. Keep out of reach of children. Do not ingest. Eye protection is recommended.

Safety Data Sheet

A full Safety Data Sheet (SDS) prepared in accordance with 29 CFR 1910.1200 is available at no cost. Request the SDS →

The Fluoro-Spec kit laid out on a table
§ 06 · ERIC'S NOTE

Your problem is my problem.

I made this kit because I was sick of watching parents spend $400 on lab tests and still not know what to fix in their house.

Included in the kit is both the spray and drip bottles. I recommend the spray bottle for lead paint dust or areas of exposed paint. The drip bottle is best for when you know exactly what you want to test.

Each spray bottle contains 170 sprays naturally — but if you purchased after 5/2025, there's a small ring in your bag. Install it and you get 500 sprays without sacrificing sensitivity. The drip bottle is good for 3,600 taps — a small area per tap, but you get a lot of them.

If you have any questions, seriously just email me at eric@detectlead.com or DM on Instagram. And if after buying you have any issues, you can send me a sample of something and I'll XRF it for free. No charge for follow-up. I learn more every time a new problem shows up — so I can make the kit better.

That's the "your problem is my problem" guarantee. When it comes to lead, I can assure you there's no one more qualified to solve your problem.

— Eric Ritter · founder, Fluoro-Spec Inc.

§ 07 · COMMON QUESTIONS

Quick FAQ

Spray vs. drip — which do I actually use?
Both, for different things. Spray = large surfaces (walls, floors, windowsills, soil, paint dust). Drip = specific items you're suspicious of (a mug, a plate, a toy, a solder joint). The Full Kit has both because most parents end up needing both.
How many tests do I actually get?
The spray bottle does 170 sprays out of the box, or 500 with the small extender ring (which is free in the bag if you bought after 5/2025). The drip bottle does ~3,600 taps — each tap wets a small area, but you get a lot of them. Most households never use up a kit.
Is this a replacement for a blood-lead test?
No. The kit detects lead on surfaces and objects in your home — it tells you where the lead is. A blood-lead test tells you what's already in your child's body. Both matter. If you suspect exposure, talk to your pediatrician about a blood-lead draw. This kit helps you fix the source.
Can I refill the bottles?
Yes. We sell a reagent refill (spray + drip) separately so you don't have to re-buy the UV flashlight. Refills use the same MABr / isopropanol chemistry — just a fresh batch.
What's the chemistry?
Methylammonium bromide (MABr) dissolved in isopropanol. When the reagent contacts lead, perovskite quantum dots form and fluoresce bright green under 365 nm UV. Published: Van Geen et al. 2024, Anal Chim Acta. Non-lead surfaces don't glow — we haven't found a common household false-positive.
Will it work on lead in my drinking water?
Not directly in the water itself — for dissolved lead in water, you want a certified lab water test (around $25). The Full Kit can test the likely source of water lead: pipe solder joints, brass fittings, and faucet aerators. One drip on the solder joint tells you whether your plumbing is leaching.
Is the reagent safe around kids and pets?
Isopropanol (rubbing alcohol) is the main solvent — same common-sense rules as any household cleaner. Don't drink it. Ventilate when spraying. Keep the bottle capped between tests. The bromide salt concentration is low. EPA TSCA LVE L-25-0206 cleared for this use.
What if I don't find any lead?
Great — that's a real answer, not a null result. If after testing you decide you want your money back, email info@fluorospect.com within 30 days for a full refund including shipping, no questions asked.
What if I find something weird?
Email Eric. Send him a sample. He'll XRF it himself and send you back a quantitative ppm reading — free, no charge for follow-up. That's the "your problem is my problem" guarantee. It exists because Eric learns from every odd case and uses it to make the kit better.

All 19 questions →

§ 08 · THE WHOLE THING

Test your whole home tonight.

Four drops of reagent. Four minutes of your time. You'll know.

30-day money-back · Free XRF follow-up · Ships in 48 hrs

Or — 10-pack for $222 ($22.20 each) for contractors / HUD grantees.

Fluoro-Spec detects lead via perovskite quantum-dot fluorescence (MABr in isopropanol). It is a qualitative screening tool — it tells you whether lead is present, not how much. For ppm quantification, Eric will XRF a sample of yours free of charge after purchase. Chemistry published: Van Geen et al. 2024, Anal Chim Acta. EPA TSCA LVE L-25-0206.

Added to cart ✓ — Full Fluoro-Spec Kit