I love liquid soap. I recently rediscovered how much fun it is to make! However, there is one problem, it takes so long to make! Its a lot like a traditional soap-making method in that way. But surely there’s an easier way to whip up a bottle of my favorite smelling liquid soap? There is, using natural surfactants!
So, here is my super easy liquid soap recipe that you can whip and use in literally minutes. I’m using mild, natural, and easy to use surfactants that are suitable for even the most sensitive of skins.
While I know surfactants have earned a bit of a dirty name over the last few decades, stay with me here. Natural surfactants are readily available nowadays. No need to use that awful SLSA powder anymore!
This recipe makes a perfect homemade shower gel and can be adapted to suit your own needs. However, if this is your first time making soap with surfactants I’d advise sticking to the recipe below. No need to fix what isn’t broken, you know? Experimentation can come later.
Watch How To Make A Shower Gel
Ingredients I’ll be Using For This DIY Shower Gel
Most of the ingredients I’ve chosen for my shower gel recipe are simple, fairly inexpensive, and easy to source. I’m using distilled water rather than a hydrosol (floral water) and reasonably priced essential oils. The essential oils can, of course, be substituted for another blend or even a fragrance oil if your budget is really tight.
Funny thing is, most store-bought shampoos, shower gels, and bubble baths are made using this method. Manufacturing traditional lye-based liquid soap is expensive and time-consuming, so it makes sense. Until the synthetic ingredients in them start to irritate your skin!
So I say enough of the store-bought stuff. We can save time and money by mimicking what the big players in skincare do, but spend a little more time making sure our skin gets the tender love and care it really needs. Let’s take back control of our skincare! But first, let’s chat about the ingredients we’re using today.
There are tons of reasons why you may prefer to use a surfactant to create your liquid soap. Chief among these is that it only takes around 20 minutes to knock up a fantastic cleansing shower gel. It also cuts out the risk of handling the lye (potassium hydroxide).
Lye is a super-strong alkali, but it is necessary if you want to make liquid soap from scratch the old fashioned way. But it can be an intimidating ingredient for an inexperienced formulator. Surfactants allow us to bypass this ingredient and this method entirely.
I like to think of surfactants in the same way you would a melt and pour soap base, only you need to add things to them to be able to use it. A bit of distilled water, a sprinkle of a thickening cosmetic gum, and a dash of a humectant are all you’ll need to do this.
The surfactant I’m using in my pink grapefruit shower gel is coco glucoside. It’s totally accepted in natural skincare formulation, is one of the mildest and easiest to work with and gives a good lather. So basically, it ticks all my boxes. If you are unable to get hold of it you can substitute it for Caprylyl/Capryl Glucoside or Plantapon TF. Any of these will work well.
A cosmetic gum, in this case xanthan Gum, is used to thicken our shower gel. It can be a bit tricky to use and needs to be blended into the glycerine thoroughly, otherwise you may end up with white specks floating in the gel.
A humectant is an ingredient used in skincare that draws moisture to a product once it’s applied to the skin, leading to lovely skin-softening benefits.
I’m using glycerine in this recipe. It’s readily available and probably the easiest to use. I add it to lots of my products, as it really helps to plump out the skin and make it appear and feel much more supple.
Apart from all the obvious benefits to the skin, the glycerine keeps everything nice and slick, helping the gel to glide easily and evenly across the skin. It also has a way of helping the xanthan gum dissolve quicker, making the whole process a little easier.
This diy shower gel has a lovely aroma that smells fresh and citrusy. It really smells amazing in the shower! The grapefruit and bergamot essential oils also have great cleansing and antibacterial properties. Both are excellent stress-relieving oils that can help to balance your mood and energize the mind. Great for your morning shower!
As this is a water-based product, it absolutely needs a preservative. A simple broad-spectrum preservative at around 0.05-1% should do the job. If you are using an oil-based preservative it will need to be added to the surfactant after incorporating the essential oils (see step 2).
A water-based one should be added later in step 5. If you are not sure you can test your preservative by stirring a little into some water to see if it floats around the top (oil-based) or disburses into the water (water-based)
Something To Note
Okay, one more thing to keep in mind (I promise) before we make a start. The essential oils must be added to the Coco-Glucoside first.
The surfactant works as a solubilizer to absorb the essential oils so that they can be mixed with the remaining water-based ingredients.
If you were to add them at the end, they will separate and float around the top just as they would if you were to drop them into water.
How To Make Shower Gel
- Place the glycerine into a jug or beaker, then add the xanthan gum to it. Mix well until the xanthan gum has completely dissolved into the glycerine.
- Weigh the coco glucoside into a small beaker and add the essential oils. You will need to stir the coco glucoside to fully disperse the essential oils within it. This needs to be done carefully so to prevent unwanted foaming.If you are using an oil-based preservative you will also need to add and blend this in now. A water-based preservative should be added later in step 5.
- Pour the coco glucoside into the glycerine and gum mixture. Once again you will need to make sure you combine this well, whilst being careful not to foam up the surfactant too much.
- Whilst stirring, slowly add the distilled water to the gum mixture. Stir gently until it has fully combined and has thickened.
- Once the gel is nice and thick, stir in the preservative then add a couple of drops of liquid soap coloring (if using).
- Coco glucoside can have a high PH level so it's good to test your shower gel using a PH strip. This needs to fall slightly onto the acidic side with a range of between 4 and 6. If it’s too high a few drops of lactic acid will bring it down to a decent range. If it’s too high add a little baking soda.Make sure to add small amounts at a time and then test again, repeating until you reach a reasonable PH. You don't want to risk wasting your entire batch by adding too much of your PH modifier.
- Transfer to a PET plastic bottle with pump or screw cap lid to store. Keep out of direct sunlight, especially if your bottle is clear plastic.
As I mentioned before, this is a great starter shower gel recipe that can help you master how to make liquid soap using simple surfactants. There are loads of surfactants on the market that all bring something valuable or new like extra foaming, creaminess, cleansing, or emulsifying. So feel free to tinker with it once you become more confident.
There are other ways to customize your shower gel. Perhaps you could use a hydrosol instead of water? Peppermint hydrosol and peppermint essential are a great combination for some much needed morning invigoration.
The bottom line is that this doesn’t have to be just ordinary when you can make it extraordinary!