window-and-door brands in continued use
as of Aug 24, 2026
中文WINDOW CLEANING & CARE
Care that helps every window
stand up to daily life and time.
Dr. Lucheng offers a two-product window and door system: clean first, allow the surface to dry, then care.
Two 500 mL productsPublic evidence filesMainland China delivery
A tribute to living well and making well.
window cleaning and maintenance category
brand statementdeep collaborations
brand statementSTART HERE
Choose the path that matches
your real decision.
HOUSEHOLD · 10-SECOND CHOICE
What do you need to solve today?
- Dust, fingerprints and everyday dirtStart with the Multi-purpose Cleaner
- Clean, dry surfaces and hardwareThen choose the Maintenance Essence
- A complete routineUse both: clean, dry, then care
BUSINESS · VERIFY BEFORE TRIAL
For service chains, retailers and window professionals
Confirm use cases, samples, evidence files, minimum order, quotation and delivery arrangements before long-term procurement.
- Standard product roles and instructionsDesigned for a repeatable service routine
- Evidence files and claim limitsFor quality, legal and buying review
- Trial and commercial termsConfirmed against location, volume and channel
OUR BELIEF
Home is the answer
to every sincere effort.
We honour the people who work hard for their families. Their daily choices turn the space inside a window into warmth and the view beyond it into possibility.
We also honour window and door makers who keep refining their craft. Dr. Lucheng’s role is simple: helping those well-made products receive thoughtful care for longer.
CHOOSE WITH CLARITY
Start with the need,
not the sales pitch.
Everyday dirt calls for cleaning. A clean, dry surface can then receive routine care. The two products have separate roles.
Choose the Cleaner first
One Cleaner covers all types of windows, doors, furniture and sofas for everyday dirt.
View the Cleaner →Then choose the Essence
For every door, window and component after cleaning and full drying; do not spray it on glass.
View the Essence →Clean, dry, then care
Two clear roles instead of one product claiming to do everything.
Compare the options →TWO-PART SYSTEM
Clean first. Care next.
Two clear roles.
The products have equal importance. The Essence is presented first; in actual use, clean the surface, allow it to dry, then apply care.
01
门窗保养精华液
Window Maintenance Essence
Routine care for every door, window and component after cleaning and full drying; do not spray it on glass.
Product details & limitations ↗02
多功能门窗清洁剂
Multi-purpose Window Cleaner
Everyday cleaning for all types of windows, doors, furniture and sofas, regardless of material.
Product details & limitations ↗EVERYDAY CARE
Care lives in
everyday details.
From a clearer view to smoother operation, caring for every window is part of caring for home.
CARE TECHNOLOGY
Two clear roles. One complete routine.
The Cleaner and Maintenance Essence have separate roles in one everyday routine.
Cleaner first
Cleans windows, doors, furniture and sofas for everyday care.
Essence next
After cleaning and full drying, provides routine care for doors, windows and components except glass.
Use the Cleaner first, wipe and allow the surface to dry, then use the Maintenance Essence when routine care is needed. Do not spray the Essence on glass.
EVIDENCE, NOT SLOGANS
Every conclusion needs a source and a limit.
Test results are connected to their report references, submitted samples, methods and reporting limits, so each figure can be understood in context.
Open the evidence centre ↗98.35%
Cleaning performance
Cleaner report SHF24120041-02; stated criterion ≥90%
Not detected
Benzene / toluene / ethylbenzene / xylenes
Below the reporting limits in the relevant reports
>5000 mg/kg
Acute oral LD₅₀
Test result; not a statement of “absolute safety”
PICC
Product liability insurance
An insurance fact, not a product endorsement
As of 24 August 2026,
87 brands remained in continued use.
PURCHASE & CONTACT
China delivery and global enquiries.
Official marketplaces currently deliver within mainland China only. Overseas customers may contact us by email.