Is Sodium Lauryl Sulfate (SLS) Safe? What You Need to Know
Safety Score
Concern Level: high
Sodium Lauryl Sulfate (SLS) has moderate safety concerns. Consider alternatives where possible, especially for vulnerable populations.
What Is Sodium Lauryl Sulfate (SLS)?
A surfactant and foaming agent commonly found in cleaning products and personal care items. It is one of the most widely used detergents in consumer products.
Commonly found in: shampoo, body wash, toothpaste, dish soap
Safety Research & Evidence
A surfactant and foaming agent commonly found in cleaning products and personal care items. It is one of the most widely used detergents in consumer products.
Regulatory status: Generally recognized as safe by FDA at low concentrations
Sources
Health Concerns
skin irritation
Evidence: ModerateResearch indicates skin irritation may be associated with exposure to Sodium Lauryl Sulfate (SLS). Particularly concerning for infants, people with eczema, sensitive skin.
eye irritation
Evidence: ModerateResearch indicates eye irritation may be associated with exposure to Sodium Lauryl Sulfate (SLS). Particularly concerning for infants, people with eczema, sensitive skin.
organ system toxicity
Evidence: ModerateResearch indicates organ system toxicity may be associated with exposure to Sodium Lauryl Sulfate (SLS). Particularly concerning for infants, people with eczema, sensitive skin.
Vulnerable Populations
Extra caution recommended for: infants, people with eczema, sensitive skin
Safer Alternatives
| Alternative | Safety Score |
|---|---|
| Sodium Cocoyl Isethionate | 8/10 |
| Decyl Glucoside | 9/10 |
How to Avoid Sodium Lauryl Sulfate (SLS)
- Read ingredient labels carefully for "Sodium Lauryl Sulfate (SLS)" or its chemical synonyms
- Choose products with third-party certifications (EWG Verified, Made Safe)
- Consider alternatives like Sodium Cocoyl Isethionate or Decyl Glucoside
- Check the EWG Skin Deep database for product ratings
- Look for "Sodium Lauryl Sulfate (SLS)-free" labels on product packaging
Frequently Asked Questions
Is Sodium Lauryl Sulfate (SLS) safe for babies?
No, we recommend avoiding Sodium Lauryl Sulfate (SLS) in products used on or around babies due to their developing systems.
What are the safest alternatives to Sodium Lauryl Sulfate (SLS)?
Safer alternatives include Sodium Cocoyl Isethionate (safety score: 8/10), Decyl Glucoside (safety score: 9/10).
Is Sodium Lauryl Sulfate (SLS) banned in other countries?
Regulatory status: Generally recognized as safe by FDA at low concentrations
How do I know if my product contains Sodium Lauryl Sulfate (SLS)?
Check the full ingredient list on the product label. Sodium Lauryl Sulfate (SLS) may also appear under different chemical names. Using apps like EWG Healthy Living or Think Dirty can help identify it.
Related Safety Guides
References
- Bondi JF et al. (2005). Final report on the safety assessment of sodium lauryl sulfate PMID: 16422263