What does "Natural" Even Mean? - SLS

You have probably seen the following on so-called “natural” brands out there, highlighting particular chemicals that aren’t included in a particular product. But keep in mind that usually there are many other ingredients that remain. Ahhh, greenwashing............... for another day! 

• SLS-free

• Phthalate-free

• Paraben-free 

• Fragrance-free

So, I’m going to cover some important info about these that can often cause some confusion when a similar ingredient is still listed on actual sustainable &/or natural products. 

This issue is all about SLS! 

SLS, or Sodium Lauryl Sulfate, is a small molecule synthetic additive derived from petroleum. It’s become common in commercially available personal and home products because it is inexpensive and a highly effective surfactant (cleaner) that creates thick foam, cleanses by lifting dirt and oil, and emulsifies (combines) ingredients. 

An SLS allergy is rare but sensitivity is fairly common. The cause being from the Lauric Acid in SLS. While it is considered safe in low amounts some people find it strips too much oil from skin resulting in dryness. This is particularly more noticeable for those with sensitive skin, eczema, or other skin conditions. 

While SLS is a harsh, small-molecule detergent that can cause skin irritation. Sodium Laureth Sulfate, or SLES, is derived from SLS via ethoxylation, making it much gentler on the skin, although it may still contain 1,4-dioxane impurities. This is one we still avoid at Refillosophy. 

There are, however, much safer, plant-based alternatives to SLS that shouldn’t be confused with SLS just because their names are similar. 

SDS = Sodium Dodecyl Sulfate - While some SDS is considered the same as SLS, the SDS in products at Refillosophy are plant-based, biodegradable and free from harsh chemical additives.  Derived from renewable palm oil or coconut oil, it is a nonionic surfactant (neutral charge; great emulsifier; low foam; excel in cold water). SDS is used in lower concentrations & when used it is combined with an irritation mitigator. 

SCS = Sodium Coco Sulfate - Also plant-based from coconut oil & is an anionic surfactant (negative charge; high foaming; aggressive cleaning power). It is gentler than SLS & skin friendly when combined with citric acid. It requires warmth to dissolve in water. 

SCI = Sodium Cocoyl Isethionate - A very mild, coconut-derived, sulfate-free anionic surfactant widely used in shampoos and shampoo bars to create a rich, creamy lather without stripping natural oils. Known as "baby foam," it is gentle, effective for cleansing, and ideal for sensitive or dry scalps, often serving as a preferred alternative to harsh sulfates. 

We’ve been conditioned to expect foaming as a sign of cleaning by use of chemicals like SLS in commercial products over time. If your products didn’t foam up would you still believe they are working?

I hope you learned something new today!

Thank you for supporting us & our mission.

Pam