Understanding Sodium Lauryl Sulfate (SLS) and Its Common Uses
Sodium lauryl sulfate, commonly known as SLS, is a key ingredient found in a vast array of products that produce foam. Often classified as a surfactant or a synthetic detergent, SLS plays a vital role in generating bubbles and providing cleansing action in many everyday items, including toothpaste, shampoo, body wash, and laundry detergent. While SLS is generally considered safe for use, it can be derived from natural sources and is biodegradable. However, for certain individuals, including myself, SLS can lead to adverse reactions and skin sensitivities.
Due to its ubiquitous presence in countless products, many people may gradually develop a sensitivity to SLS over time. Even if you were not initially sensitive, your skin may react negatively now, particularly if you are experiencing issues such as sensitive skin, eczema, or dermatitis. Making a conscious effort to eliminate SLS from your daily skincare and hygiene routines can significantly improve your skin’s health. Given the extensive list of products that may contain SLS, I have compiled specific recommendations to assist others in making informed choices, which inspired me to create this comprehensive guide!
The Origins of Sodium Lauryl Sulfate: A Closer Look
Sodium lauryl sulfate can be synthesized from either petroleum products or plant-based ingredients such as coconut oil or palm oil. Interestingly, it is rumored that SLS was initially utilized as an engine degreaser during World War II, though concrete evidence for this claim is hard to find. Today, SLS is still employed in various medical studies where researchers intentionally create skin irritation to evaluate the effectiveness of soothing products. The concentrations used in these studies are often significantly higher than those found in personal care items, which explains the irritation it can cause. Even at lower concentrations of just 1-2%, SLS has been shown to induce skin irritation. A 2019 article in the British Journal of Dermatology states, “Sodium lauryl sulfate [SLS; synonym: sodium dodecyl sulfate (SDS) or C12H25NaO4S] is a surfactant that is used in many household and hygiene products. It has an irritating effect on skin and is therefore used extensively in models for testing the response of skin to irritants.”
Comparing Sodium Lauryl Sulfate (SLS) and Sodium Laureth Sulfate (SLES)
Sodium laureth sulfate (SLES) is an ethoxylated variant of sodium lauryl sulfate and is marketed as a gentler alternative with reduced irritation potential. However, many users, including myself, have found that sensitivity to one often translates to sensitivity to the other, regardless of whether they are derived from plant sources or are biodegradable. This poses a challenge since numerous eco-friendly brands incorporate these ingredients, necessitating diligent research and scrutiny of product labels. Additionally, it is important to note that the ethoxylation process used to create SLES raises environmental concerns, as it may have adverse effects on Planet Earth.
Identifying Who Should Steer Clear of Sodium Lauryl Sulfate
Determining whether your skin issues stem directly from SLS can be challenging. However, if you experience skin problems, the most prudent decision is to completely avoid SLS until your skin has returned to a healthy state. SLS can exacerbate numerous skin conditions, including various forms of dermatitis (such as perioral dermatitis and eczema), psoriasis, heightened skin sensitivity, and many other unexplained rashes. If you notice an improvement in your skin after eliminating SLS, you may cautiously reintroduce it to gauge whether your skin reacts negatively again. That said, the brands I recommend here are so exceptional that you might find yourself never wanting to go back!
Exploring Alternatives: Sodium Cocosulfate (SCS) and Sodium Lauryl Sulfoacetate (SLSa)
Sodium cocosulfate (SCS) is a surfactant derived from whole coconut oil and does contain some sodium lauryl sulfate. The molecular structure of SCS is larger than that of SLS, which should theoretically reduce its ability to penetrate the skin and lessen its irritation potential. However, if you are highly sensitive to SLS, you may want to avoid SCS as well to be on the safe side.
Similarly, sodium lauryl sulfoacetate (SLSa) is another surfactant that is derived from coconut and palm oils. Due to its larger molecular size compared to SLS or SLES, SLSa is expected to be less irritating. Nevertheless, if you have a known sensitivity, it is still possible to experience a reaction to SLSa.
Finding the Best SLS-Free Body Wash for Your Skin
When seeking an effective body wash free from sodium lauryl sulfate, natural bar soap is an excellent option. However, it is crucial to select the right type of bar soap, as many commercially made options found in grocery stores often contain harsh synthetic detergents, artificial fragrances, and dyes that can dry out and irritate your skin. Opt for handmade, cold-process bar soap that is rich in glycerin, entirely free of synthetic additives, and provides deep moisturization. Check the ingredient lists to ensure they do not include FD&C colors or generic “fragrance,” both of which can aggravate sensitive skin. At Osmia, we believe our body bars are among the best available! Our formulations utilize natural botanical powders or clays for coloring and high-quality essential oils for fragrance. We also offer a variety of unscented options, which are ideal for those with significantly irritated skin.
Choosing the Best Laundry Detergent Without Sodium Lauryl Sulfate
The market is increasingly filled with laundry products that do not contain SLS, but it is essential to be cautious, as many still include ethoxylated ingredients (like those detergent sheets) and synthetic fragrances (look for terms such as “fragrance” or “Parfum” on the label). Personally, I have found two brands that work exceptionally well for my active family—who frequently deal with dirty and sweaty clothes:
– Molly’s Suds offers both powder and pod forms, available in scented (naturally) or unscented options. We also utilize their oxygen booster for effective stain removal.
– Branch Basics provides an oxygen booster as well, and their concentrate is often used to create laundry detergent.
Discovering the Best Shampoo Free from Sodium Lauryl Sulfate
Finding the right shampoo that is devoid of sodium lauryl sulfate can be challenging due to the abundance of SLS-free brands available today. However, I have some budget-friendly favorites like Desert Essence and Acure, along with performance favorites such as Josh Rosebrook, Innersense, and Evolvh. Below, I’ve listed specific products that I have personally tried and loved:
– Josh Rosebrook Balance Shampoo and Conditioner are excellent for maintaining healthy hair.
– Innersense Clarity Shampoo and Conditioner provide effective cleansing without irritation.
– Desert Essence Unscented Shampoo (contains SCS) along with the Conditioner is perfect for those seeking gentle care.
– Acure Ultra Hydrating Shampoo and Conditioner deliver exceptional moisture and nourishment.
– Evolvh UltraShine Moisture Shampoo and Conditioner are also fantastic options for hydration.
Selecting the Best SLS-Free Toothpaste for Healthier Teeth
I recently ordered some toothpaste tabs from Bite and have been thoroughly enjoying them! Additionally, I have been using Jason Seafresh Toothpaste in the Deep Sea Spearmint flavor for years, and I highly recommend it as well for a refreshing and effective clean.
Finding the Ideal Dish Soap Without Sodium Lauryl Sulfate
Molly’s Suds offers a delightful dish soap with options that are all plant-derived and free from phthalates and ethoxylates. Their products are compliant with Safer Choice and ISO-9235 standards, ensuring a safer cleaning experience.
Choosing the Best Dishwasher Detergent Without Sodium Lauryl Sulfate
– Molly’s Suds has introduced dishwasher soap pods that perform remarkably well. I have used them multiple times in my dishwasher, and they leave my dishes sparkling clean! They feature a lovely citrus scent derived from natural ingredients.
– Branch Basics also offers effective dishwasher tabs, which I appreciate for their minimalist design resembling tiny hockey pucks of detergent, completely unscented yet highly effective.
Finding the Best All-Purpose Household Cleaner Without Sodium Lauryl Sulfate
For an all-purpose cleaner, my top pick is Branch Basics. I purchase their concentrate, which can be used to create a variety of cleaning solutions, including a glass cleaner, laundry detergent, all-purpose cleaner, and bathroom cleaner. They also offer reusable glass containers for convenience. I like to enhance mine with a few drops of essential oil: lavender and geranium in the laundry detergent, lavender and grapefruit in the all-purpose cleaner, rosemary (chemotype verbenone) for the bathroom cleaner, and eucalyptus for the glass cleaner.
I hope this information helps you discover a variety of great, SLS-free products for your skin, hair, oral hygiene, and home cleaning needs! If you’re dealing with any skin issues, removing SLS from your routine may be a crucial step toward achieving long-term skin health and happiness. Should you have any questions or need further assistance, feel free to reach out to us at [email protected], and we would be delighted to assist you!


