Reviews
Ingredient Library
Every common whitening active — what it does, what the research says, and where you'll find it.
Evidence: Strong
Hydrogen Peroxide
The most-studied active in tooth whitening.
Evidence: Strong
Carbamide Peroxide
A slower-releasing form of hydrogen peroxide used in trays and LED kits.
Evidence: Limited
PAP (Phthalimidoperoxycaproic Acid)
A peroxide-free whitening active designed to reduce sensitivity.
Evidence: Moderate
Nano-Hydroxyapatite
A biomimetic mineral that supports enamel remineralization and mild brightening.
Evidence: Strong
Fluoride
Not a whitening agent — supports enamel remineralization alongside whitening actives.
Evidence: Strong
Potassium Nitrate
A sensitivity-reducing agent commonly paired with peroxide.
Evidence: Moderate
Xylitol
A sugar alcohol used to disrupt cavity-causing bacteria.
Evidence: Limited
Activated Charcoal
An adsorbent used to bind and lift surface stain molecules.
Evidence: Moderate
Calcium Peroxide
A slow-releasing peroxide alternative used in some dentist-oriented pastes.
Evidence: Moderate
Sodium Bicarbonate (Baking Soda)
A mild abrasive and pH buffer.