So, what’s the difference between SLS and SLES?
While both are added to create foam and help to produce a cleaning action, the two ingredients are very different.
Starting with sodium lauryl sulfate (SLS), this surfactant is a great cleaning product but is well-known to be an irritant when left on the skin for prolonged periods of time. By affecting the everyday function of skin proteins, this leads to damage of the outer layer of skin which helps to cause cracked, dry and tender skin.
If you suffer from comedones (more commonly known as whiteheads or blackheads), SLS has also been identified as a key player in increasing the number of these found on the face and body.
Additionally, SLS in shampoo and other hair products can often ‘sit’ on hair follicles even after washing, resulting in weakening of the hair follicles over extended periods of time.
So, sounds lovely, doesn’t it? Funnily enough, SLS is deemed as being ‘safe to use’ by many regulatory bodies such as The Cosmetic, Toiletry and Fragrance Association (CTFA) and The Cosmetic Ingredient Review Panel (CIR). In recent years, it has picked up a considerable amount of attention across the internet with rumours of it being linked to cancer, however, there has been no evidence that SLS is linked to this in any way.
One thing that’s known is that SLS can be a skin irritant when left on for prolonged periods of time and that is one reason why we do not have it in our SLS free products.
If you do choose to use other brands that use SLS and feel any irritation, we would strongly suggest washing it off immediately and apply a soothing layer of SLS-free moisturiser to try to calm the skin.
Now we know a little more about SLS, sodium laureth sulfate (SLES) is created through a process called ethoxylation (any product ending in -eth has also been through the same process) where ethylene oxide is added to change the makeup of the compound.
Safe to use in bath & body products, this process means SLES is much gentler to use on both hair and skin and doesn’t strip the epidermis of any excess moisture, leaving it feeling soft, smooth and nourished.
At Fresh, we choose to stay far away from SLS and use SLES in our shower gel, body scrub and foaming bath jelly to create the foam and lather we all love.
When mixed with ingredients such as bergamot oil, orange seed oil, fruit extracts and tea-based infusions, SLES acts as an extremely effective addition to these products.
One key reason for choosing to use SLES is that while other foam-creating ingredients are out there on the market, many have been or are being tested on animals which we fully do not believe in or condone.
On the high street, you will find SLS or SLES in many products, including:
- Body wash
- Washing liquid
- Shaving cream
- Bubble bath
- Sun cream
- .. and many more