If your toothpaste leaves your mouth feeling dry, irritated, or burned, sodium lauryl sulfate (SLS) might be to blame. This common foaming agent is found in most commercial toothpastes, but for people with sensitive mouths, it can cause more harm than good. Fortunately, SLS-free options are now widely available—and more effective than ever. In this guide, we’ll cover the benefits of SLS-free toothpaste and introduce the best choices for 2025, including Real Skin Care’s gentle and refreshing Fresh Mint formula.
What Is SLS and Why Is It in Toothpaste?
Sodium lauryl sulfate (SLS) is a detergent and surfactant used to create foam in toothpaste, shampoo, and soaps. In toothpaste, it helps spread the paste across your teeth and gives you that familiar foamy feel. However, SLS can irritate the sensitive tissues in your mouth, especially if you suffer from canker sores, dry mouth, or gum inflammation.
Why Choose SLS-Free Toothpaste?
- Gentle on Gums: SLS is a known irritant that can damage the soft tissues in your mouth, especially for those with receding gums or sensitivity.
- Better for Canker Sores: SLS can trigger or worsen mouth ulcers. Going SLS-free often reduces outbreaks.
- Less Drying: SLS strips natural oils, which may lead to dry mouth and increased risk of cavities.
- No Harsh Detergents: Natural alternatives clean without relying on synthetic foaming agents.
- Safer for Children: SLS-free toothpastes are often milder and safer for kids to use daily.
- Eco-Friendly Formulas: Many SLS-free brands also avoid artificial colors, flavors, and preservatives.
Who Should Use SLS-Free Toothpaste?
SLS-free toothpaste is especially recommended for:
- People prone to canker sores or oral ulcers
- Those with dry mouth or sensitive gums
- Individuals undergoing orthodontic or dental work
- Children or adults who prefer cleaner ingredient lists
If your mouth often feels sore or inflamed after brushing, switching to an SLS-free formula may bring noticeable relief within days.
How to Use SLS-Free Toothpaste
- Use Twice Daily: Brush morning and night with a soft-bristled toothbrush.
- Avoid Rinsing Immediately: Let the ingredients remain on your teeth briefly for maximum benefit.
- Combine with Gentle Mouthwash: Choose alcohol-free options for best results.
- Be Consistent: Lasting relief from SLS-related irritation builds over time with regular use.
The Best SLS-Free Toothpastes – 2025
1. Real Skin Care Coconut Oil Toothpaste – Fresh Mint
Real Skin Care’s Fresh Mint toothpaste is handcrafted with organic ingredients and zero SLS. It features purified spring water, organic virgin coconut oil, baking soda, xanthan gum, wildcrafted myrrh powder, evia, and organic essential oils of peppermint and spearmint. There are no foaming agents, no synthetic sweeteners, and no unnecessary fillers—just clean, plant-powered oral care.
This fluoride-free, alcohol-free formula is safe for children, adults, and anyone with a history of mouth irritation. The subtle mint flavor is fresh without being overpowering, and the texture is smooth and creamy without foam. A perfect choice for sensitive mouths and ingredient-conscious families alike.
Shop Real Skin Care Fresh Mint Toothpaste
2. Hello SLS-Free Toothpaste
Widely available in drugstores, Hello’s fluoride-free line is known for its vibrant packaging and fun flavors. It avoids SLS, dyes, and parabens, but includes sweeteners like erythritol and stevia, which may be a downside for sensitive users.
3. Tom’s of Maine Botanically Bright
This SLS-free formula is available in most stores and uses natural extracts and xylitol. While effective, it may still contain glycerin and other fillers that ingredient purists prefer to avoid.
4. Risewell Hydroxyapatite Toothpaste
Though more expensive, Risewell offers a science-backed, fluoride-free formula that avoids SLS and includes hydroxyapatite to support enamel. It’s ideal for those with post-whitening sensitivity or enamel erosion.
5. Dr. Bronner’s All-One Toothpaste
Dr. Bronner’s toothpaste is certified organic and made without SLS or foaming agents. It features a thin texture and mild flavor, though some users find it too subtle for daily use.
FAQs – SLS-Free Toothpaste
What does SLS do in toothpaste?
SLS creates foam and helps disperse toothpaste across your teeth. It has no cleaning or antibacterial benefits but makes the paste feel more “active.”
Is SLS bad for your mouth?
SLS can irritate soft tissues, especially if you have sensitivity, dry mouth, or frequent canker sores. Many people report relief within a few days of switching to SLS-free options.
Can children use SLS-free toothpaste?
Yes. In fact, SLS-free formulas are often safer and better tolerated by children, especially those prone to oral irritation.
Does SLS-free toothpaste clean as well?
Yes. The cleaning power comes from the brushing motion and ingredients like baking soda or coconut oil—not the foam. SLS-free toothpaste can be equally or more effective.
What’s the best SLS-free toothpaste for sensitive teeth?
Real Skin Care’s Fresh Mint Coconut Oil Toothpaste is a standout thanks to its organic formula, soothing ingredients, and absence of all harsh detergents and sweeteners.
Scientific References
- A Review of the Effects of SLS on Oral Tissue – NIH
- Healthline: Sodium Lauryl Sulfate in Toothpaste
- Cleveland Clinic: Causes and Treatments for Dry Mouth
Comparison: Top SLS-Free Toothpaste Brands
Comparison: Top SLS-Free Toothpaste Brands
| Brand | SLS-Free | Free of Sugar Alcohols | Glycerin-Free | Ingredient Transparency |
|---|---|---|---|---|
| Real Skin Care (Fresh Mint) | ✅ | ✅ (no xylitol or erythritol) | ✅ | 7 simple, organic ingredients |
| Hello SLS-Free | ✅ | ❌ (contains erythritol & xylitol) | ❌ | Longer list with natural + lab-derived ingredients |
| Tom’s of Maine Botanically Bright | ✅ | ❌ (contains xylitol) | ❌ | Uses natural flavors, glycerin, and silica |
| Risewell | ✅ | ❌ (contains xylitol) | ❌ | Performance-focused with synthetic-free approach |
| Dr. Bronner’s All-One | ✅ | ✅ | ✅ | Minimalist but flavor may be too mild for some |