Why do teeth yellow?

In general, discoloration is caused by staining from pigments that cling to your enamel (the white outer layer of your teeth), or the wearing of your enamel thin so the dentine (yellow material underneath) shows.

Staining and wear are caused by a confluence of the following factors:

🍷 Diet: Common foods and drinks like pasta sauce, curry, berries, wine, coffee, vinegar-based dressing, soda, and so on either contain pigments that stain your enamel or are acidic and wear down your enamel over time. 

🚬Smoking: Nicotine, tar, and tobacco smoke also will stain your enamel leaving a yellow-to-brownish hue.

🪥Poor oral hygiene: Brushing your teeth daily is extremely important in removing the pigment that builds up over time. Miss just a few days and you’ll notice a big difference in your teeth’ color. Additionally, grinding your teeth also leads to faster enamel wearing. 

👴🏻 Age: Unfortunately as you get older, your enamel naturally wears and breaks down over time, so it’s extremely important to take care of your teeth while you can!

How does teeth whitening work?

All teeth whitening techniques work in one of two ways:

1. Physical abrasion target superficial stains by physically scraping off the pigment that has built upon the surface of your teeth. This is the primary function of teeth whitening toothpaste and can be effective up to a certain degree, however lacks the ability to penetrate and remove deeper. embedded stains in hard-to-reach surfaces leading to a less noticeable difference.

2. Chemical bleaching remove stains by penetrating both surface, superficial stains as well as deep, embedded stains. It is both more effective, and gentler on your teeth in the long run thus it is the most common method employed by dentists and at-home DIY solutions. 

What does the blue light do?

The blue light device is known as a curing light, is a common dental device used to accelerate the polymerization of dental materials such as composites, adhesives, cements, and sealants.

The curing light, whether UV, halogen, or LED, does not whitening teeth directly. Instead it catalyzed the molecules in the bleaching agent, leading to faster and longer-lasting change in color.

Dentists or DIY?

Dentists and DIY at-home whitening kits are both viable options to achieving a brighter smile. However, there are a few key differences:


- Standard procedure cost anywhere from $500 - $3,000+

- Whitening treatment is considered a cosmetics procedure & are generally not covered by insurance in the U.S. (other geographies may vary)

- Requires appointment and travel

- Expect to see results in one, 60+ minute treatment


- <$200 for most kits

- Utilizes same active ingredients, although milder strength suitable for at-home self application

- Self-directed treatments from the comfort of your home

- Expect to see results after several treatments

See the data.

Our advanced whitening formulas are expertly formulated and rigorously tested. Laughland is proven in clinical studies to whiten your teeth by up to 8 shades in just 6 days.

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