Frequently Asked Questions
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The Guardian+ is the very first oral device of its kind, with patent-pending technology that implements BOTH blue light & red/NIR light so you can safely whiten your teeth while also receiving the benefits of red light therapy!
The Guardian+ is designed to provide the most consistent coverage of light in the mouth by incorporating the blue light LEDs in the top row & red/NIR (NIR = near-infrared) light LEDs in the bottom row (see pictures above). This means you conduct half of your treatment & then rotate the device 180-degrees for the second half of the treatment (if you are wanting to treat both the top & bottom of your mouth).
With the Guardian+, you also have the ability to choose three light settings: blue/RLT combo, blue light only or RLT only – this gives you the flexibility to carry out teeth whitening or RLT treatments only, if you prefer.
Oral Health & Blue Light Therapy
Blue light is notorious for whitening teeth, but it also provides other valuable oral health benefits as well, such as:
- Selectively killing harmful bacteria
- Gum health
One of the biggest advantages of blue light therapy (BLT) over bactericides like mouthwashes & antibiotics, is that BLT selectively targets the harmful bacteria implicated in infections. This means that blue light selectively kills harmful bacteria while leaving the beneficial bacteria unscathed & thriving, leading to an optimized oral microbiome!
Included with the Guardian+ are three 2-oz. Teeth Whitening Gel Pens, which utilizes carbamide peroxide (CP) at a 36% concentration. Choosing CP at 36% concentration is important for two reasons:
- CP has been shown in the research to whiten teeth significantly faster when compared to the more common (and less expensive) ingredient, hydrogen peroxide (HP). They are equally safe to use in the human mouth.
- A higher concentration of CP leads to further accelerated teeth whitening. Most CP concentrations use on the market are 6 - 18%. Once again, safety is not compromised with a higher CP concentration.
Other important aspects of CP over HP include:
- A longer shelf-life
- Does not require refrigeration
- Is slower acting & therefore less aggressive on soft tissues such as lips & gums
Teeth Whitening Gel Pen ingredients: propylene glycol, vegan- & GMO-free glycerin, hydrogen peroxide, urea peroxide, carbomer, triethanolamine, mint flavor (peppermint oil & menthol), disodium EDTA
** Additional gel pens can be purchased here! **
If you want to learn about the research behind blue light therapy & its impact on teeth whitening & oral health, listen to this episode of The Red Light Report.
Oral Health & Red Light Therapy
There is scientific literature on red light therapy & oral health that is very robust, indicating a multitude of uses that includes the following:
- Gum health/gum pain
- Infections & inflammation
- Post-surgical healing & recovery
- Periodontal wound healing
- Gingivitis
- Cold sores & herpes
- Oral mucositis
- And MORE!
Not only can red light therapy help you heal & recover from the aforementioned conditions, but it can also help you maintain optimal oral hygiene by modulating inflammation, improving circulation & boosting the health & function of the mitochondria. Learn more about red light therapy & its impact on oral health by checking out the Learn page here!
Guardian+ Specs
- Wavelength: 460nm (blue light), 630nm (red light) & 850nm (NIR light)
- Light irradiance @ 0": Blue light = 2.2 mW/cm²; Red/NIR light = 1.2 mW/cm²
- Lens Beam Angle: 120°
- Automated 5-minute timer
- Magnetic USB charging (Full charge lasts over 2.5 hours)
- Flexible BPA-free silicone mouthpiece
- Waterproof design
Includes
- Guardian+ device
- Teeth Whitening Gel Pen, 2 oz. (x3)
- USB magnetic charging cord
- Storage case
- User manual
**ONCE THE GUARDIAN+ HAS BEEN USED, IT CANNOT BE RETURNED DUE TO HYGIENIC, SANITARY REASONS**
Precision-Engineered for Cellular Vitality
Performance matters. Guardian+ delivers patent-pending dual-wavelength therapy—blue light for advanced teeth whitening, paired with red/NIR light to soothe inflammation and support gum health—crafted for daily oral wellness.
Guardian+ outputs 460 nm (blue), 630 nm (red), and 850 nm (NIR). Run blue-only, red/NIR-only, or a combo mode depending on your session goal.
Each cycle is 5 minutes. Many users do two back-to-back cycles—rotating the device 180° between them—to cover both upper and lower arches.
The optical design uses a 120° lens beam angle with listed irradiance near the device surface (approx. 2.2 mW/cm² blue; 1.2 mW/cm² red/NIR), supporting broad, gentle coverage.
The box includes three 2-oz carbamide-peroxide whitening gel pens (36%)—plus the device, magnetic USB charging cable, storage case, and user manual.
Let it cool, wipe the BPA-free silicone mouthpiece with a gentle non-abrasive cleaner, and store it in the case. The water-resistant design makes upkeep straightforward.
A full charge provides 2.5+ hours of runtime via magnetic USB. Guardian+ carries BioLight’s standard 3-year warranty; note that used units aren’t returnable for hygienic reasons.
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