The LED Whitening Kit
A PAP whitening gel without hydrogen peroxide, a wireless 32-LED light and an automatic timer. Paint it on, put the light in, sit back.
✓ No hydrogen peroxide — the whitening ingredient is PAP.
20-minute session*
the eye can see*
in the gel
*Measured in clinical studies of PAP gels, not of this kit. Results vary. See the results →
PAP helps lift the surface stains coffee, tea and red wine leave behind. Results vary from person to person. What the studies measured →
One gel. 32 lights.
Zero H2O2.
PAP.
Not H2O2.
Phthalimidoperoxycaproic acid
Most whitening strips and gels rely on hydrogen peroxide or carbamide peroxide. The pens in this kit use PAP instead: an oxidizing whitening ingredient, with neither of the two in the gel.
| Feature | MSWK PAP | Peroxide gel |
|---|---|---|
| Whitening ingredient | ✓ PAP | Hydrogen or carbamide peroxide |
| Hydrogen peroxide | ✓ None | Yes |
| Applied with | ✓ Brush-tip pen | Strip, tray or syringe |
| Session | ✓ Timed by the light | You keep track |
About two shade tabs lighter.
After one session.
In a randomized, double-blind study, 40 people used a PAP gel once, for 20 minutes. Their teeth measured about two tabs lighter on the VITA shade guide, right after and again a day later. The placebo group: no change.
Bizhang et al. 2017: randomized, double-blind, placebo-controlled, 40 people, one 20-minute application of a PAP gel, VITA shade guide, measured again after 24 hours. Tadin et al. 2023: a PAP pen used for 14 days, colour change ΔE00 2.9 against the 1.8 the eye notices. Independent studies of other PAP products, not of this kit. Results vary from person to person. Read the studies →
Before & after,
illustrated.
AI-generated illustrations, not photos of real people and not a result of this kit. Results vary with your starting shade and the type of stain. What the studies measured is shown above.
One kit. Six reasons.
No hydrogen peroxide
The whitening ingredient is PAP. No hydrogen or carbamide peroxide in the gel.
Lifts surface stains
Made for the stains coffee, tea and red wine leave on your teeth.
Hands-free
Nothing to hold. Read, scroll or watch while the session runs.
Auto-off timer
Press once. The light times the session and switches itself off.
Wireless
Rechargeable on a magnetic USB cable. No cable in your mouth.
Rinses clean
IPX6 water resistant. Rinse the mouthpiece under the tap after use.
Start with a number.
The kit comes with a 15-step shade guide. Hold it next to your front teeth in daylight and tap the closest match. Check again in the same light after a week.
Four steps. One episode.
Brush
Start with clean, dry teeth. With a miswak or your usual brush.
Paint
Twist the pen and brush a thin layer of PAP gel onto the front of your teeth. Keep it off your gums.
Light
Put the mouthpiece in and press once. Blue runs 15 minutes, blue + red 10, then it switches off.
Rinse
Take it out, rinse your mouth and the mouthpiece. Finish with the aftercare pen.
Fifteen minutes. Anywhere.
What the studies measured.
Published studies on PAP whitening, in plain words. They tested other PAP products, not this kit.
About 2 shade tabs lighter after one use
40 people, randomized and placebo-controlled. One 20-minute application of a PAP gel lightened teeth by about 2 tabs on the VITA shade guide, measured right after and again 24 hours later. The placebo group barely changed.
Bizhang et al., J Appl Oral Sci 2017 →A PAP pen, used for two weeks
People used a PAP whitening pen for 14 days. The measured colour change was above the threshold at which the eye notices a difference in tooth colour.
Tadin et al., Acta Stomatol Croat 2023 →Coffee stains, removed
On coffee-stained teeth, a 12 % PAP gel removed the stain. The researchers saw stain removal rather than extra whitening of the natural enamel: PAP works on the surface.
Müller-Heupt et al., Int J Mol Sci 2023 →Results vary by formula
Reviews of over-the-counter whitening call for more clinical studies on PAP, and some lab tests found little effect for certain formulas. What PAP does best is lift surface stains. Crowns, veneers and fillings don't change colour.
Barbosa et al., J Dent 2024 →These studies tested other PAP products, not the MSWK pens. Results vary from person to person. A cosmetic product for the surface of natural teeth; it does not treat any condition.
What the light does.
And what it doesn't.
Short version: the gel whitens, the light runs the session. 32 LEDs in a soft mouthpiece, two modes, one button.
Blue mode
The 16 blue LEDs. Press the button once: the session runs for 15 minutes, then the light switches itself off.
Blue + red mode
All 32 LEDs, the 16 red ones added. A shorter 10-minute session with the same automatic switch-off.
Hands-free and timed.
The mouthpiece keeps the gel where you painted it while you read or scroll, and it ends the session for you: no clock-watching, no leaving it in too long. The whitening itself comes from the PAP gel, not from the light.
Brush natural.
Then light up.
Brush with an MSWK miswak stick, then do your whitening session. Both ship in one parcel.
See the miswak →Common questions.
Phthalimidoperoxycaproic acid, an oxidizing whitening ingredient used instead of hydrogen peroxide or carbamide peroxide. The three whitening pens in this kit contain a PAP gel.
The gel contains no hydrogen peroxide and no carbamide peroxide. PAP itself is a peroxy acid, an oxidizer: that is how it whitens. So we say "no hydrogen peroxide" rather than "no peroxide at all".
No. The whitening comes from the gel. The light makes the session hands-free and timed, and switches off by itself.
One or two sessions a day, as described in the user manual in the box, until the pens are used up.
No. Whitening products don't change the colour of crowns, veneers, bonding or fillings. If you have visible restorations, ask your dentist before you start.
It can. Some people notice temporary tooth or gum sensitivity with whitening products, PAP pens included. Use a thin layer, keep the gel off your gums, and take a break or stop if it feels uncomfortable.
That depends on you. Coffee, tea, red wine and smoking stain teeth again over time. Results vary from person to person.
Not for children. If you are pregnant or breastfeeding, have braces, gum problems, very sensitive teeth or recent dental work, ask your dentist first. Stop using it if your teeth or gums feel irritated.
A separate 2 ml gel pen for after your session. See the user manual for how to use it.
Clip on the magnetic USB cable to charge. The light is IPX6 water resistant: rinse the mouthpiece under the tap after every session and let it dry.
Ready to light up?
A PAP gel without hydrogen peroxide and a wireless light that times every session for you.
In a clinical study, one 20-minute PAP session measured about two shade tabs lighter. Results vary.