Rosemary & Rhassoul Shampoo Bar

As seen in the recent issue of Mollie Makes

Shampoo bars are a great, simple lifestyle change to make in reducing your plastic waste and they’re arguably better for your hair!

Here’s our Rosemary & Rhassoul shampoo bar cold process recipe using natural ingredients. We’ve followed our standard cold process recipe but made a few additions!

Rhassoul Clay-

has been used for centuries in the ancient world as a top beauty ingredient. Rhassoul clay is a natural clay mined in the Atlas Mountains of North Africa. It has been mined since the 8th century and is super rich in many minerals including silica, iron, magnesium, potassium, sodium, lithium and trace elements. It helps exfoliate dead skin as well as balance sebum secretion on the skin which helps fight off dandruff.


can counter hair loss by stimulating blood circulation in the scalp, which, in turn, promotes hair growth. Its high nutritional value and anti-inflammatory properties make it an excellent ingredient for nourishing the hair follicles and soothing the scalp. It also has analgesic properties that make it a good remedy for soothing inflamed scalps. It is known to thicken hair and add shine and help with dandruff, and is often used by people who have thin, lustreless hair.

Rhassoul and rosemary = Suitable for all (especially dry hair and dandruff/itchy scalp) to give a good cleanse.

If you haven’t used shampoo bars before, your scalp may need to “re-learn” how much oil to make, as most store-bought shampoos strip away all oils meaning hair follicles counteract this & overproduce oil, so you will likely go through a greasy period of 1-3 weeks.  After your scalp adjusts, the shampoo bar will work brilliantly!

To use, simply lather the shampoo bar in your hands and work into your hair. Rinse thoroughly, and follow up with a lightly acidic conditioner, this helps to close the hair shaft cuticles. Mix 1:4 apple cider vinegar to water in a spray bottle. Simply spray and rinse.


You Will Need:

Before you begin make sure have your equipment & ingredients at the ready and always wear protective gloves & glasses when soap-making to avoid injury from spills and splashes.

Make the Lye

Measure the cold clean water into a jug. Carefully & slowly add the sodium hydroxide to the water, and whisk, stirring all the time. Be careful not to breathe in the vapour that is initially given off. Stir until dissolved. The solution (now known as Lye) will heat up to nearly 200°F. Leave to cool.

The Oils

Whilst your lye cools, combine the solid oils & butter and gently melt on the hob using a double boiler. Remove from the heat and add the other oils, rosemary essential oil and sieve the Rhassoul clay in- blend until combined.

Make the Trace

Once the melted oils & lye are at a similar temperature, slowly & carefully add the lye to the oils, start stirring with a balloon whisk to ensure the mixture all starts to chemically react and combine. It will slowly turn opaque & thicken (Whisk fairly briskly) Once you can drizzle the mixture to leave a visible mark on the surface before sinking, you’ve reached trace!


When everything is well mixed, pour into your prepared mould and decorate with dried rosemary if you wish.

Leave to set

Insulate the mould with towels or a blanket and leave at room temperature for 24hrs. Once set & cool, it will be a soft solid and can be easily cut into bars. If it appears too soft to handle, leave it for 2-3 days and try again.

Leave bars to cure for 3-4 weeks on absorbent paper allowing air to circulate, releasing excess moisture to become a harder bar.

Leave a Reply

Your email address will not be published. Required fields are marked *