By Dr. Ryan Chaliff, DDS, MD (Columbia University), Co-Founder of BRITEN
What the ads won't tell you
Most "before and after" photos you see in teeth whitening ads are shot under different lighting. The "before" uses flat, warm light that makes teeth look yellow. The "after" uses bright, cool light that makes teeth look white. Sometimes the contrast and color balance are adjusted in post-production. I've seen this from brands across the category, including major ones.
Here's what real results look like, from someone who measures them clinically.
Shade improvement by method
- LED whitening kit (10 days): 3-5 shades. This is what most people experience with BRITEN, Snow, or any quality LED kit used consistently.
- Whitening strips (14 days): 2-4 shades. Strips are slightly less effective due to uneven coverage.
- Professional in-office (1 session): 5-8 shades. Higher concentration delivers faster, more dramatic results.
- Whitening toothpaste (30+ days): 1-2 shades. Toothpaste removes surface stains but doesn't penetrate enamel.
- Natural methods: 0-1 shades. Baking soda and oil pulling provide minimal visible change.
Results by stain type
Surface stains (coffee, wine, tea): Respond quickly. Most improvement happens in the first 3-5 days. This is the most common stain type and the most satisfying to treat.
Age-related yellowing: Responds well but takes the full 10-14 day cycle. Enamel has thinned over decades, so the underlying dentin shows through more. Whitening penetrates the dentin and lightens it, but it takes consistent treatment.
Tetracycline staining: The hardest to treat. These gray-brown bands are deep within the tooth structure. At-home kits can lighten them but rarely eliminate them completely. Professional treatment with higher concentrations may be needed.
Fluorosis (white spots): Whitening can actually help by making the surrounding tooth match the white spots, creating a more uniform appearance. The spots don't get lighter, but everything else catches up.
How to take honest before-and-after photos
- Same location, same time of day (natural light, no direct sunlight)
- Same angle and distance from the camera
- No flash (it washes out detail)
- Hold a white piece of paper next to your teeth as a reference point. Your teeth should look progressively less yellow compared to the paper over the course of treatment.
What "natural white" actually looks like
Healthy teeth are not bright white. They're an off-white with a slight yellow or gray undertone. That's the natural color of dentin showing through translucent enamel. When I tell patients to expect 3-5 shades lighter, the result is a clean, healthy-looking smile. It's a noticeable improvement that looks natural.
The ultra-white look you see on celebrities is almost always veneers (porcelain shells bonded over natural teeth). Whitening cannot replicate the uniform, opaque white of porcelain. And most people look better with a natural shade anyway.
Related: BRITEN Advanced Kit | How Long Results Last
