Many people switch to “natural” toothpaste hoping to avoid harsh chemicals—but not all clean-labeled products are as safe as they seem. Ingredient lists can be confusing, and some formulas include compounds that may irritate your mouth, disrupt oral health, or provide no real benefit at all. In this guide, we’ll highlight 7 common toothpaste ingredients to avoid—even in natural brands—and offer a better way to care for your smile with simple, transparent alternatives.
1. Sodium Lauryl Sulfate (SLS)
What it is: A foaming agent that helps toothpaste spread and feel “active.”
Why to avoid it: SLS is linked to mouth irritation, dryness, and an increase in canker sores. It can disrupt the oral microbiome and trigger burning or sensitivity in people with delicate tissues.
Better alternative: Non-foaming formulas that use coconut oil, baking soda, or herbal blends to cleanse without lather.
2. Glycerin
What it is: A thickener that adds moisture and sweetness to toothpaste.
Why to avoid it: Glycerin may coat the teeth and interfere with natural enamel remineralization by blocking saliva’s access to the surface. It's also unnecessary for cleaning power.
Better alternative: Glycerin-free pastes with simple plant-based binders and natural humectants.
3. Artificial Sweeteners (e.g., Saccharin, Sucralose)
What they are: Chemical-based sweeteners used to improve taste without sugar.
Why to avoid them: These sweeteners can irritate sensitive users and may disrupt gut health. They’re often included in products marketed to children.
Better alternative: Natural sweeteners like stevia or simply no sweeteners at all.
4. Triclosan
What it is: A synthetic antibacterial agent previously common in oral care.
Why to avoid it: Triclosan has been banned in many personal care products due to concerns over hormone disruption and antibiotic resistance. It may still be present in older formulas.
Better alternative: Natural antimicrobials like coconut oil or myrrh extract.
5. Carrageenan
What it is: A seaweed-derived thickener used for texture and stability.
Why to avoid it: Some studies suggest carrageenan may trigger inflammation in sensitive individuals, especially those with digestive conditions.
Better alternative: Xanthan gum or bentonite clay for consistency without controversy.
6. Artificial Flavors & Dyes
What they are: Lab-created additives used to enhance color or flavor.
Why to avoid them: These provide no functional value and may trigger allergic reactions, behavioral sensitivity in children, or long-term toxic buildup.
Better alternative: Essential oils like peppermint, cinnamon, or clove for natural flavor and benefits.
7. Fluoride (Optional)
What it is: A mineral added to many toothpastes to prevent cavities.
Why to avoid it: While effective in small amounts, fluoride can be harmful if ingested in excess. Some families prefer fluoride-free options to avoid overexposure, especially with young children.
Better alternative: Remineralizing agents like baking soda or hydroxyapatite paired with good brushing habits and a clean diet.
Choose a Simpler, Safer Option
Real Skin Care’s All Natural Coconut Oil Toothpaste avoids all 7 of these questionable ingredients. Made with just purified spring water, organic virgin coconut oil, baking soda, xanthan gum, wildcrafted myrrh powder, stevia, and essential oils, it delivers gentle, effective cleaning with none of the junk. It’s safe for kids, free of foaming agents, and supportive of enamel and gum health.
Shop the All Natural Toothpaste
FAQs: Ingredients to Avoid in Natural Toothpaste
Why do natural brands still use SLS or glycerin?
Many do so for texture, foaming, or shelf stability—but they’re not necessary for an effective product. Real Skin Care leaves them out entirely.
Are all sweeteners bad in toothpaste?
No. Natural sweeteners like stevia are generally well-tolerated, especially when used in small amounts and paired with clean-label ingredients.
How can I find a truly clean toothpaste?
Check labels. Look for short ingredient lists, no dyes, no artificial flavors, and formulas without alcohol, SLS, or preservatives.
Do I need fluoride?
That depends on your dental history. Many people do well with fluoride-free pastes when paired with proper diet and brushing technique.
Scientific References
- NIH: Toothpaste Ingredients and Safety
- CloveDDS: Toxic Ingredients in Toothpaste
- Discover Dental Rocklin
- Carrie Ibbetson: Oral Health Advocate