Sulfate shampoo (SLS)

Sulfate shampoos, often containing sodium lauryl sulfate (SLS), are common hair care products that can affect skin and eye health due to their cleansing properties.

Indexed studies indicate that SLS can cause irritation when it comes into contact with skin or eyes. Research has found that SLS increases the permeability of skin layers, potentially leading to discomfort and dryness. Additionally, while not directly studied in shampoos, related surfactants have been shown to delay corneal healing in animal studies, suggesting a possible risk for eye health.

This product is closely linked with discussions on skin irritation and overall hair care practices. Understanding the potential effects of SLS can help guide choices towards more gentle alternatives if needed.

Evidence specifically linking SLS in shampoos to long-term health impacts remains limited, so individual reactions may vary widely.

Sources

• Combined effects of temperature rise and sodium lauryl sulfate in the Mediterranean mussel. (PMID:37088267)
• Detecting Levels of Polyquaternium-10 (PQ-10) via Potentiometric Titration with Dextran Sulphate and Monitoring the Equivalence Point with a Polymeric Membrane-Based Polyion Sensor. (PMID:28018490)
• Surfactant irritation: in vitro corneosurfametry and in vivo bioengineering. (PMID:11301641)
• Evaluation of the irritant capacity of decyl polyglucoside. (PMID:18503463)
• Preservative effects on the healing rate of rabbit corneal epithelium. (PMID:2488029)
• Determination of residual 1,4-dioxane in surfactants and cleaning agents using headspace single-drop microextraction followed by gas chromatography-flame ionization detection. (PMID:27239978)

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