Your Complete Teeth Whitening Guide

Learn the difference between Teeth Whitening Strips, Whitening Pen, and LED Whitening Kit.
Find out how each method works, who it is best for, how long results take, and how to safely whiten your teeth at home.
Choose confidently and get a brighter smile—safely and effectively.

Read Full Guide

  • Which Whitening Solution Is Right for You?

    Choose based on your whitening goals. Strips and Pen apply whitening gel, while the LED Kit accelerates whitening for faster and deeper results.

  • Whitening Strips

    • Full smile whitening
    • Easy and comfortable
    • No tools or devices needed
    • Hands-free 30 minute use
    • Best for beginners and regular whitening.
    View Strip 

  • Whitening Pen

    • Targeted and edge whitening
    • Easy brush-on gel
    • Perfect for touch-ups and maintenance
    • Best for coffee/tea drinkers, smokers and uneven stains.
    View Pen 

  • LED Whitening Kit

    • 2× faster results with strips or pen
    • Activates the whitening gel
    • Deeper whitening in fewer sessions
    • Best for fast results and special occasions.
    View LED Kit 
View All

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✨ Real People. Real Smiles.

FAQs

Is teeth whitening safe for sensitive teeth?

Yes, when used as instructed. Wellthink whitening products are designed to be gentle and enamel-safe.
If you have extreme sensitivity, start with shorter usage time and avoid over-applying the gel.

Which whitening option is best — strips, pen, or LED kit?

Goal Best Option

Full smile whitening Whitening Strips
Spot / edge whitening Whitening Pen
Fast whitening / deep activation LED Kit (use with strip or pen)

Do I need LED light for teeth whitening?

LED is optional but recommended.
It activates the whitening gel, making results 2× faster and deeper, with fewer sessions.
You can apply strips or pen alone — but adding LED gives premium results.

How many days will it take to see visible results?

Product Type Visible Results

Strips 7–10 days
Pen 10–14 days (gradual)
Strips/Pen + LED 3–7 days (fastest)

Can I drink tea or coffee during whitening treatment?

Yes, but it's better to avoid dark drinks like tea, coffee, red wine, cola during treatment hours.
If you consume, rinse your mouth with water afterward to protect results.

How long do whitening results last?

Results typically last between 4–8 weeks, depending on lifestyle and diet.
You can use the Whitening Pen for maintenance after whitening.

Who should avoid whitening products?

Avoid using whitening products if:  You have untreated cavities, gum infections, or severe sensitivity
 You’re pregnant or breastfeeding
 You’re under 16 years old

Can I combine products for better results?

Yes! Here is the best whitening flow:

Apply Whitening Strip or Pen → Use LED Kit → Rinse → Maintain with Whitening Pen

This gives fastest, deepest, and most even whitening.

Can whitening damage enamel?

No — as long as you follow usage instructions.
Wellthink formulas are non-abrasive, peroxide-controlled, and enamel-safe.

Do the results look natural or artificial?

Wellthink whitening is designed to improve shade gradually —so your smile looks natural, bright, and not artificial or extreme.