Switching to sulphate-free shampoo can feel surprisingly different. There may be less foam, your usual amount of shampoo might not work in quite the same way, and hair that previously felt “squeaky clean” can feel softer – or occasionally heavier – after washing.
That's because shampoo formulas can use very different cleansing systems. Sulphate-free shampoos replace familiar cleansing agents such as SLS and SLES with alternative surfactants, often combining them with botanical extracts, aloe vera, plant oils and other conditioning ingredients.
For many people, particularly those with dry, curly, colour-treated or easily irritated hair and scalps, exploring a different cleansing formula can be well worth considering.
Here's how to make the switch, use sulphate-free shampoo effectively and choose the right formula for your hair.
What's Inside
How do you switch to sulphate-free shampoo?
You can simply replace your existing shampoo with an SLS/SLES-free alternative.
Wet your hair thoroughly, concentrate the shampoo on your scalp rather than your ends, massage with your fingertips and rinse properly. If you've used lots of styling product or your hair is particularly oily, a second shampoo can sometimes help.
The biggest difference may be the amount and texture of the lather. Lots of foam isn't necessary for clean hair, so judge your new shampoo by how your hair and scalp feel after washing rather than by the size of the bubbles.
What are sulphates in shampoo?
Shampoo needs cleansing ingredients called surfactants. These help water interact with oils and dirt so they can be rinsed away.
Two of the best-known shampoo surfactants are sodium lauryl sulphate (SLS) and sodium laureth sulphate (SLES). They're effective cleansers and are particularly good at producing the abundant lather many of us associate with shampoo.
Some people prefer to avoid SLS and SLES because they find a different cleansing system better suited to their hair or scalp. This can be particularly relevant when hair is dry, curly or colour-treated, or when the scalp is easily irritated.
At MyPure, our haircare selection avoids SLS/SLES sulphates as part of our Purity Promise.
“Sulphate-free” can be confusing
Beauty terminology isn't always as precise as it should be.
When people talk about sulphate-free shampoo, they're usually referring to shampoos formulated without common conventional cleansing agents such as SLS and SLES.
That doesn't necessarily mean a formula contains no sulphated surfactants whatsoever. Sodium coco-sulfate, for example, is used in some certified natural shampoos.
So rather than relying on a single “sulphate-free” label, it can be more useful to look at the individual formulation and choose according to your hair, scalp and the ingredients you personally prefer to avoid.
Why choose an SLS/SLES-free shampoo?
For us, the attraction isn't simply removing two ingredients from the bottle. It's what formulators can do when they build a different kind of shampoo around alternative cleansing ingredients and botanicals.
Natural shampoos may combine their surfactant system with ingredients such as aloe vera, glycerin, botanical extracts and plant oils. Each has a different role within the finished formulation – from cleansing and conditioning to helping hair feel softer and more manageable.
Dry hair
If your hair regularly feels rough or dry after shampooing, experimenting with a different cleansing system and a more conditioning formula can make sense.
Curly & textured hair
Curls can be particularly sensitive to the balance between cleansing and conditioning. Look beyond the front label and choose a formula suited to your curl pattern, dryness and styling routine.
Colour-treated hair
If you've invested in professional colour, choosing a shampoo specifically recommended for colour-treated hair is sensible. Washing frequency, water temperature and the complete shampoo formulation can all influence how your colour looks over time.
Sensitive scalps
If your scalp is easily irritated, look at the whole ingredient list rather than sulphates alone. Fragrance, essential oils and other ingredients can matter too, which is why a fragrance-free shampoo may sometimes be the more relevant choice.
What do natural shampoos use instead?
Removing SLS or SLES doesn't remove the need for cleansing. A shampoo still requires surfactants to do its basic job.
Natural and naturally derived shampoos can use combinations of surfactants such as glucosides, betaines and other plant-derived cleansing ingredients. Formulators can blend different surfactants to achieve the cleansing, foam, viscosity and after-feel they want.
This is why it's difficult to judge a shampoo by one ingredient in isolation. How strongly a product cleanses depends on the complete surfactant system, its concentration, the rest of the formulation and how you use it.
The botanical side of the formula can then add another dimension. Aloe vera, seaweed extracts, plant oils and other botanicals contain naturally occurring compounds that can contribute to the overall feel and conditioning properties of a shampoo.
Does less lather mean less cleansing?
No. Foam is useful because it helps distribute shampoo and gives us sensory feedback while washing, but the amount of foam isn't a direct measure of how clean your hair will be.
A lower-foam shampoo can still cleanse effectively.
You may also notice that the same shampoo produces more foam during a second wash. That's often because the first shampoo has already removed some of the oil and product residue that can suppress foam.
What happens when you switch to sulphate-free shampoo?
The most obvious difference may simply be how the shampoo behaves in the shower.
A different surfactant system can produce a different type of lather and a different after-feel. Your hair might feel softer or less “squeaky” after washing, particularly if you've moved to a more conditioning formula.
Alternatively, a shampoo that isn't cleansing enough for the amount of sebum or styling product on your hair may leave it feeling heavy or coated.
Neither outcome tells you whether sulphate-free shampoo as a category is right or wrong for you. It tells you whether that particular formulation suits your hair and the way you use it.
If you're changing shampoo because you want to understand how your hair responds, it can also be useful to keep your existing conditioner initially. Changing several products simultaneously makes it much harder to identify what's responsible for the difference.
How to wash your hair with sulphate-free shampoo
Technique matters with any shampoo, particularly if you've moved to a lower-foam formulation.
Wet your hair thoroughly
Give the water time to saturate your hair before reaching for the shampoo. This helps the product spread more easily and means you're less likely to compensate by using far too much.
Concentrate on your scalp
Apply the shampoo primarily where oil and build-up accumulate – at the scalp and roots. Massage gently with your fingertips rather than aggressively scrubbing with your nails.
Add water before adding more shampoo
If the shampoo isn't spreading well, work a little more water through your hair before reaching for another handful of product. Lower foam doesn't necessarily mean you haven't used enough.
Rinse thoroughly
Take enough time to rinse shampoo completely from the scalp and hair. Residual shampoo or conditioner can contribute to hair feeling heavy after washing.
Double cleanse when it makes sense
A second shampoo isn't compulsory. It can be useful after heavy styling-product use, a particularly oily day or when you haven't washed your hair for longer than usual. If one wash leaves your hair clean, there's no need to wash it twice simply because you're using a natural shampoo.
Why does my hair feel greasy, waxy or dry after switching?
If your new shampoo isn't giving you the result you expected, there are several practical things to investigate.
| What you're noticing | Possible explanation | What to try |
|---|---|---|
| Greasy roots | Your new shampoo may be too conditioning for your scalp, you may not be using enough cleanser, or your washing technique may need adjusting. | Focus shampoo at the roots, rinse thoroughly and try a second cleanse when necessary. |
| Waxy or coated hair | Styling-product build-up, conditioner residue, hard water or a shampoo that's simply not cleansing enough for your routine can all contribute. | Review your styling products, rinse carefully and consider an occasional deeper cleanse. |
| Dry ends | Your hair may need more conditioning, or the shampoo itself may not suit your hair type. | Concentrate shampoo on the scalp rather than repeatedly working it into the lengths, then condition the areas that need it. |
| Flat or heavy hair | A rich shampoo or conditioner may simply be too heavy for fine hair. | Try a lighter formula or use less conditioner through the lengths. |
| Itchy scalp | The cause could be the individual formula, fragrance, an ingredient sensitivity, incomplete rinsing or an underlying scalp condition. | Stop using a product if it consistently causes irritation. Persistent scalp symptoms deserve appropriate professional advice. |
Your shampoo might not be the only variable
Hard water contains relatively high levels of minerals such as calcium and magnesium. Mineral deposits can interact with hair and haircare products and may contribute to a coated or less manageable feel.
If several different shampoos leave your hair feeling similarly dull or coated, particularly after moving to a hard-water area, the water itself may be part of the picture.
An occasional deeper-cleansing or chelating product may be useful for some hair types, but choose according to your hair and follow the individual product directions.
How to choose the right natural shampoo for your hair
“Sulphate-free” shouldn't be the end of your buying decision. Once you've decided to avoid SLS/SLES, choose the actual shampoo according to your hair.
- Fine hair: look for lighter formulations that cleanse effectively without leaving too much conditioning residue.
- Dry hair: consider more conditioning formulas containing plant-derived emollients and botanical extracts.
- Curly or textured hair: pay particular attention to moisture, conditioning and how frequently you need to cleanse.
- Colour-treated hair: choose a product specifically described as suitable for coloured hair and avoid unnecessarily hot water.
- Sensitive scalp: consider fragrance-free options and pay attention to your own known triggers.
- Lots of styling products: make sure your shampoo provides enough cleansing for the products you regularly use.
UpCircle Shampoo Crème with Coconut & Rosemary Oil
Best considered for: Anyone interested in a concentrated natural shampoo with a different format from a conventional liquid.
UpCircle Shampoo Crème takes an interesting approach to natural haircare. Rather than a standard liquid shampoo, it's a concentrated crème designed to provide more washes from less product.
The formulation uses plant-derived cleansing ingredients alongside coconut and rosemary oils, while UpCircle's wider approach centres on making use of repurposed ingredients that might otherwise go to waste.
Why we'd consider it: it's a good example of how switching away from a conventional shampoo can involve more than simply removing SLS/SLES. The texture, concentration, cleansing system and botanical ingredients have all been reconsidered.
Worth remembering: concentrated shampoo can take a little practice. Follow the product directions rather than using the same quantity you would with a conventional liquid shampoo.
Explore UpCircle HaircareWhat if you have a sensitive scalp?
If scalp sensitivity is the reason you're changing shampoo, don't stop your ingredient investigation at SLS and SLES.
Fragrance can matter to some sensitive scalps, as can individual botanical or cosmetic ingredients. A fragrance-free shampoo may therefore make more sense than simply choosing whichever bottle has the biggest “sulphate-free” message on the front.
And if you have persistent itching, soreness, scaling, significant flaking or hair loss, changing shampoo may not address the underlying cause. Speak to a pharmacist, GP or dermatologist if you're concerned.
Find a shampoo that suits your hair
The best natural shampoo isn't necessarily the one with the shortest ingredient list or the least foam. It's the one with a cleansing and conditioning balance that works for your scalp, hair type and routine.
Explore Natural HaircareSulphate-free shampoo FAQs
Is sulphate-free shampoo better for your hair?
It depends on your hair, scalp and the complete formulation. People with dry, curly, colour-treated or easily irritated hair may prefer shampoos formulated without SLS/SLES, but the words “sulphate-free” alone don't tell you whether a shampoo will suit you. The other surfactants, conditioning ingredients and the way you use the product matter too.
Why doesn't my sulphate-free shampoo lather as much?
Different surfactant systems produce different amounts and types of foam. A shampoo can cleanse effectively without producing a huge lather. Oil and styling-product build-up can also reduce foam, which is why you may notice more lather if you shampoo for a second time.
Can I switch straight to sulphate-free shampoo?
Yes. You can replace your existing shampoo with an SLS/SLES-free formula. Pay attention to how the new shampoo cleanses your scalp and how your hair feels afterwards, then adjust the amount you use or your washing technique if necessary.
Can sulphate-free shampoo make hair greasy?
A particular shampoo can leave your hair feeling greasy if it isn't cleansing strongly enough for your scalp, washing frequency or styling-product use. That doesn't mean all SLS/SLES-free shampoos will have the same effect. Try adjusting your washing technique or choosing a different formulation.
Why does my hair feel waxy after changing shampoo?
A waxy or coated feel can have several causes, including styling-product build-up, conditioner residue, hard water or a shampoo that isn't cleansing strongly enough for your particular routine. Review the products you're using and make sure you're rinsing both shampoo and conditioner thoroughly.
Should you double shampoo with sulphate-free shampoo?
Only when you need to. A second cleanse can be useful if your scalp is particularly oily, you've used a lot of styling product or it's been longer than usual between washes. If your hair feels clean after one shampoo, there's no reason to automatically wash twice.
Is sulphate-free shampoo good for coloured hair?
Many shampoos formulated for colour-treated hair avoid SLS/SLES, but don't rely on that feature alone. Look for a shampoo specifically recommended for coloured hair and follow the aftercare advice provided by your colourist. Washing frequency, water temperature and the complete formulation can all affect how your colour looks over time.
Does sulphate-free mean no sulphates at all?
Not always in everyday beauty terminology. “Sulphate-free” is frequently used to mean free from common surfactants such as SLS and SLES. Some natural shampoos use ingredients such as sodium coco-sulfate, so check the ingredient list if you specifically want to avoid every sulphated surfactant.
Can I use sulphate-free shampoo every day?
How often you should shampoo depends on your scalp, hair type, activity level and the individual product. An SLS/SLES-free label doesn't automatically make every shampoo suitable for unlimited washing. Wash as often as you need to keep your scalp and hair comfortable, following the directions for the product you're using.
The bottom line
Switching to sulphate-free shampoo can be very straightforward. The important thing is understanding that you're not simply removing SLS or SLES – you're choosing a different cleansing formulation.
Natural shampoos can combine alternative surfactant systems with aloe vera, botanical extracts, plant oils and other naturally derived ingredients, creating formulas designed around different hair and scalp needs.
Start with your hair type rather than the size of the lather. Wet thoroughly, cleanse your scalp, rinse properly and only double shampoo when you actually need to. If your hair consistently feels greasy, waxy or dry, look at the formulation, your other hair products and your washing technique.
The right shampoo should leave your hair feeling clean, comfortable and manageable. That's a much more useful test than how many bubbles you see in the shower.
Please note: This article provides general hair and scalp care information rather than medical advice. Always follow individual product instructions. If you have persistent itching, soreness, scaling, significant flaking, sudden hair loss or another ongoing scalp concern, seek appropriate professional advice.