Twice Nano-Hydroxyapatite Toothpaste Fluoride-Free - Activated Charcoal for Teeth Whitening ICY Mint - 3.4 oz
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This toothpaste contains beneficial ingredients like xylitol and hydroxyapatite, which support oral health by reducing cavity-causing bacteria and remineralizing enamel. However, the inclusion of activated charcoal, known for its abrasive nature, poses a risk to enamel integrity over time. The product is processed, which limits its score despite the presence of several positive ingredients.
Key ingredients 17
XylitolVery Good
Xylitol is a natural sweetener that helps reduce cavity-causing bacteria in the mouth. It is effective in promoting oral health by inhibiting the growth of Streptococcus mutans, the bacteria responsible for tooth decay. Its inclusion in toothpaste is highly beneficial for dental health.
Risks
Excessive consumption can lead to digestive discomfort.
Benefits
Reduces the risk of cavities and promotes oral health.
HydroxyapatiteVery Good
Hydroxyapatite is a biomimetic mineral that helps remineralize and strengthen tooth enamel. It is highly effective in repairing micro-damage and improving overall dental health. Its inclusion in toothpaste is highly beneficial for maintaining strong and healthy teeth.
Risks
There are no significant risks associated with hydroxyapatite in toothpaste.
Benefits
Strengthens and remineralizes tooth enamel, improving dental health.
Glycerin (Vegetable)Good
Beneficial ingredient — whole-food or functional value in this product class.
Risks
There are minimal risks associated with glycerin in toothpaste.
Benefits
Helps maintain moisture and texture of the toothpaste.
Sodium Ascorbyl Phosphate (Vitamin C)Good
Sodium ascorbyl phosphate is a stable form of vitamin C used for its antioxidant properties. It helps protect gums and oral tissues from oxidative stress. Its inclusion in toothpaste can support gum health and reduce inflammation.
Risks
Minimal risks, though excessive use may cause irritation in sensitive individuals.
Benefits
Supports gum health and provides antioxidant protection.
Tocopherol (Vitamin E)Good
Tocopherol, or vitamin E, is used for its antioxidant properties, helping to protect oral tissues from oxidative damage. It can support gum health and reduce inflammation. Its inclusion in toothpaste is beneficial for maintaining healthy gums.
Risks
Generally safe with minimal risk of irritation.
Benefits
Provides antioxidant protection and supports gum health.
SorbitolNeutral
Sorbitol is a sugar alcohol used as a sweetener and humectant in toothpaste. It helps maintain moisture and provides a sweet taste without promoting tooth decay. However, it does not offer significant oral health benefits.
Risks
Excessive consumption can cause digestive issues such as bloating and diarrhea.
Benefits
It provides sweetness without contributing to cavities.
Hydrated SilicaNeutral
Hydrated silica is used as an abrasive agent to help remove plaque and stains from teeth. It is generally considered safe for use in toothpaste. However, it does not provide any additional oral health benefits beyond its abrasive action.
Risks
Overuse can potentially lead to enamel wear if the abrasive is too harsh.
Benefits
Helps in cleaning and polishing teeth by removing surface stains.
WaterNeutral
Water is used as a solvent to dissolve other ingredients and provide the desired consistency in toothpaste. It is an inert ingredient with no direct impact on oral health. Its primary role is to facilitate the mixing and application of the toothpaste.
Risks
There are no significant risks associated with water in toothpaste.
Benefits
Helps in maintaining the consistency and stability of the toothpaste formulation.
Cocamidopropyl BetaineNeutral
Cocamidopropyl betaine is a surfactant used to create foam and improve the cleaning action of toothpaste. It is derived from coconut oil and is generally considered safe. However, it does not provide direct oral health benefits.
Risks
May cause irritation in some individuals with sensitive skin or allergies.
Benefits
Enhances the foaming and cleaning properties of toothpaste.
Sodium BicarbonateNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
Risks
Overuse can lead to enamel wear due to its abrasive nature.
Benefits
Helps in cleaning teeth and neutralizing oral acids.
Cellulose GumNeutral
Cellulose gum is used as a thickening agent to provide the desired texture and consistency in toothpaste. It is derived from plant fibers and is considered safe for use. However, it does not contribute to oral health benefits.
Risks
There are no significant risks associated with cellulose gum in toothpaste.
Benefits
Provides texture and stability to the toothpaste formulation.
Lauryl GlucosideNeutral
Lauryl glucoside is a mild surfactant used to enhance the foaming and cleaning properties of toothpaste. It is derived from natural sources and is considered safe. However, it does not offer direct oral health benefits.
Risks
Generally considered safe with minimal risk of irritation.
Benefits
Improves the foaming and cleaning action of toothpaste.
Retinyl Palmitate (Vitamin A)Neutral
Retinyl palmitate is a form of vitamin A used for its potential skin and tissue health benefits. In toothpaste, it may help support oral tissue health, though its direct benefits are less clear. It is generally considered safe in small amounts.
Risks
Excessive intake can lead to toxicity, though unlikely in toothpaste use.
Benefits
May support oral tissue health.
MentholNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
Risks
May cause irritation in sensitive individuals if used in high concentrations.
Benefits
Provides a refreshing taste and helps freshen breath.
Flavor (Natural)Bad
Processed additive flagged under Scout's ingredient doctrine.
Risks
Potential for allergic reactions in sensitive individuals.
Benefits
Enhances the taste and user experience of the toothpaste.
Charcoal PowderBad
Activated charcoal is used for its whitening properties, but it is highly abrasive and can damage enamel over time. Its use in toothpaste is controversial due to potential enamel erosion. While it may provide temporary whitening, the long-term risks outweigh the benefits.
Risks
Can lead to enamel erosion and increased tooth sensitivity.
Benefits
Provides temporary whitening effects.
Titanium DioxideVery Bad
Heavily flagged ingredient class under Scout's doctrine.
Risks
Concerns about potential health risks when ingested in large amounts, though minimal in toothpaste.
Benefits
Improves the visual appeal of toothpaste by providing a white color.
Processing
Processed Foods
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