Priced as of May 21, 2026
5.0(1 ratings)Subscribe & Save: $37.99 (5% off)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
As an Amazon Associate and affiliate partner, CarCareTruth earns from qualifying purchases. Full disclosure
Prices may varySerious hazard — read before use
The manufacturer's Safety Data Sheet classifies this product with one or more GHS Category 1 health hazards — the most severe tier. The hazard statements in quotes below are the verbatim GHS language from the SDS, as required by OSHA's Hazard Communication Standard. The line under each statement translates the GHS classification into plain language.
- H304 “May be fatal if swallowed and enters airways.”
GHS Category 1 aspiration toxicity — thin, oily liquids can slip into the lungs if swallowed, causing chemical pneumonia.
If swallowed, inhaled, or splashed in eyes:
Call Poison Control immediately at 1-800-222-1222 (US, 24/7, free) and have the product container with you. Poison Control's standing guidance is to not induce vomiting after chemical exposure; they will direct first-aid steps based on the specific product.
About this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
From the Safety Data Sheet
Full SDS ↗ (rev. 2017-02-13)GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
EyesRecommendedMfr. SDS §8 · 29 CFR 1910.133(a)(1) · GHS H319SkinSituationalMfr. SDS §8LungsRecommendedMfr. SDS §8 · 29 CFR 1910.1200(f) · GHS H304VentilationRequiredMfr. SDS §8 · 29 CFR 1910.134(a) · GHS H335Show details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 lists H319 (eye irritation Cat 2) and the signal word is DANGER driven by H304 aspiration hazard (a health H-code). Under the glass-coating rubric v2.0, H319 + health-driven DANGER puts eyes at the recommended tier. H318 (serious eye damage) is not present, so the tier is not forced to required. Wipe-on application keeps splatter risk low, but the acetone fraction and isoparaffin carrier are both eye irritants in vapor and liquid contact.”
— Dr. Beasley's
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals…”
ANSI Z87.1 (incorporated via §1910.6)
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 does not classify the mixture for skin irritation (no H315 in the §2 hazard codes documented from notes). Acetone and isoparaffin solvents will defat skin on repeated contact via the saturated applicator pad — situational gloves are warranted for the application-pad handling step, not for incidental contact.”
— Dr. Beasley's
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 confirms H335 (respiratory irritation) — a non-boilerplate classification. The product carries DANGER driven by H304 plus H336 (CNS narcosis) from the acetone and isoparaffin vapor load. Estimated VOC sits in the 151–350 g/L bracket from the acetone fraction alone. Under the glass-coating rubric v2.0, H335 in §2 plus the high-VOC carrier triggers the recommended ventilation/lung tier. Apply outdoors or with the garage door open.”
— Dr. Beasley's
U.S. regulatory standard
29 CFR 1910.1200(f); 1910.132(d)
“The employer shall assess the workplace to determine if hazards are present, or are likely to be present, which necessitate the use of personal protective equipment.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“Flash point 12°C (53°F) places the mixture below room temperature on a warm day; combined with H336 CNS narcosis from the acetone-and-isoparaffin vapor, open-air or fully ventilated application is a hard requirement, not a recommendation. SDS §7 specifies ventilation; the combination of low flash point and inhalation hazard meets the rubric's ventilation: required tier (H225-equivalent flammability inferred from flash point + H336 confirmed). Keep ignition sources away during application and cure.”
— Dr. Beasley's
U.S. regulatory standard
29 CFR 1910.134(a); 1910.1000
“the primary objective shall be to prevent atmospheric contamination [via] accepted engineering control measures (for example, enclosure or confinement of the operation, general and local ventilation, and substitution with less toxic materials).”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
The Podium · Top 3 in Glass Coating
See the full ranking →This product ranks #11 of 12 in Glass Coating.Three above it ↓
CarCareTruth's Analysis
Last reviewed May 26, 2026
TL;DR Durability is unproven — one Amazon review and no time-stamped forum follow-ups in a category where competitors have 12+ month track records. The 10-minute dwell window is forgiving, but the DANGER signal word and 53°F flash point mean you need to apply outdoors or with the garage door open and ensure adequate ventilation.
What it is and how it performs
A wipe-on windshield coating with a 7-day no-wash cure schedule. Mix your own prep wipe-down per the listing, apply a thin layer with the included applicator, let it sit 10 minutes, then buff off. The 10-minute dwell is more forgiving than the 60-to-90-second window on competing products, though the fast-evaporating carrier means first-timers should work one window at a time. Durability is unknown — one Amazon review and brand forum coverage focuses on paint correction.
Who should buy this — and who should skip it
Best for buyers who already trust Dr. Beasley's and want to be an early data point on the glass side. Skip it for a proven track record — Gtechniq G1 has 12-to-18-month confirmed durability, and SiO₂ spray kits like Cerakote get 10-to-12 months with a complete kit.
Safety and environmental impact
Signal word DANGER from an aspiration hazard (may be fatal if swallowed and enters the airways) plus respiratory irritation and narcosis from the carrier. Flash point 12°C (53°F) — highly flammable at room temperature; apply outdoors or with the garage door open and keep ignition sources away. Wear safety glasses and ensure adequate ventilation. No PFAS. High-VOC carrier drives the environmental deduction, offset by leave-on pathway and small per-application volume.
Frequently asked questions
How long does Dr. Beasley's Glass Serum actually last?▾
Honest answer: we don't know yet from community data. The Amazon listing has one verified rating as of scoring, and the brand's enthusiast forum coverage (AutoGeek, Mike Phillips Forum) is focused on Dr. Beasley's paint products rather than this glass coating. The brand product page describes it as a 'nano coating' but does not commit to a months figure. Without independent time-stamped follow-up reports, durability is provisional — treat it as an unproven entry in a category where Gtechniq G1 and CarPro FlyBy30 have 12+ month community track records.
What prep do I need before applying it?▾
Per the Amazon listing instructions, mix 1 part isopropyl alcohol with 4 parts water and wipe the windshield down before applying. There is no dedicated prep wipe in the box — you supply the IPA. A standalone bottle of 99% IPA from a pharmacy works. Do not skip this step: any wax residue, silicone topical (Rain-X), or glass cleaner residue will block the coating from bonding.
What's the cure window — do I have to work fast?▾
The brand product page specifies a 10-minute dwell time after application, then buff with a clean microfiber. That is significantly longer than the 60-90 second window on alkoxysilane products like Gtechniq G1. In practice, the acetone-heavy carrier evaporates faster than the 10-minute dwell suggests, so first-time applicators should work in small sections (one window at a time) rather than coating the entire windshield at once.
After applying, when can I drive and when can I wash the car?▾
Per the brand product page: wait 1 hour after applying before driving, and do not wash the car for 7 days. This cure schedule is consistent with other chemically-bonded glass coatings in the category.
Does it contain PFAS?▾
No. The SDS does not list any fluorinated ingredients in §3, §11, §15, or §16. The carrier system is a petroleum isoparaffin plus acetone plus minor IPA — the bonding active is undisclosed under §3 trade-secret election, but no fluorinated CAS appears anywhere in the SDS. By process of elimination, this is not a fluoroalkylsilane product.
From the manufacturer
Marketing copy from Dr. Beasley's, via Amazon. Not editorial.
- •Your Car’s Ultimate Shield - Glass Serum makes driving through tough weather conditions safer and easier. This nano coating for glass creates an intensely hydrophobic barrier on your car’s glass to keep rain and snow moving off your windshield. Glass Serum also prevents contaminant buildup, making it easier to keep your glass clean.
- •Enhanced Visibility - Glass Serum is designed to increase visibility while driving through harsh weather. Based in Chicago, Dr. Beasley’s knows plenty about rain, snow, sleet, and other extreme weather conditions. Keeping the elements off your windshield is crucial for safety as well as a better driving experience.
- •Long-Lasting Protection - Our hydrophobic protectant for glass is long-lasting, scratch, and dirt resistant. This nanocoating is easy to apply and keeps glass extremely hydrophobic, especially on the highway. After a few simple preparation steps, your glass will be ready for an application of Glass Serum.
- •Easier Maintenance - Protected glass means washing and maintenance are easier. Driving through storms won’t be quite so scary with a crystal clear, hydrophobic windshield. Water spots and etching won’t be an issue either. Get your 1 oz bottle of Glass Serum to protect 2-3 cars!
- •Easy Application - Clean glass with an ammonia-free cleaner. Mix 1 part isopropyl alcohol with 4 parts water. Spray the solution on your glass and wipe it off. Apply several drops of Glass Serum onto the suede cloth that's wrapped around your foam block applicator. Slowly and precisely move the foam block applicator in vertical lines down your glass. Move the applicator in horizontal lines across the glass to achieve a crosshatch pattern. Allow Glass Serum to sit on the glass for 10 minutes. Wipe the glass with a clean, dry, tagless microfiber towel.
Weekly pick
One product, one safety verdict, every week. No spam.
Manufacturer images
Manufacturer specifications
- Manufacturer
- Dr. Beasley's
- Brand
- Dr. Beasley's
- Item Weight
- 1 ounces
- Product Dimensions
- 5 x 7 x 5 inches
- Item model number
- G33D01
- Manufacturer Part Number
- G33D01
- ASIN
- B07BZV2FJG
- Customer Reviews
- 5.0 5.0 out of 5 stars (1) 5.0 out of 5 stars
- Best Sellers Rank
- #475,904 in Automotive (See Top 100 in Automotive) #109 in Glass Care Products
- Date First Available
- April 5, 2018
More in Glass Coating
Gtechniq
G1 ClearVision Smart Glass
CCT 7.4 · RecommendedHealth 8.5
Soft99
Ultra Glaco
CCT 7.0 · DecentHealth 6.7
Stoner
Pro Ceramic Glass Coating Kit (95151)
CCT 6.6 · DecentHealth 7.0
Adam's Polishes
Graphene Glass Coating
CCT 6.1 · DecentHealth 7.0
As an Amazon Associate and affiliate partner, CarCareTruth earns from qualifying purchases. Full disclosure
Community
0 postsShare how you use this product
Drop a quick comment or post a full review with photos and a star rating.
Sign in to postNew here? Create a free account.