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Solid shampoo bars

Solid shampoo bars

  
Great for eliminating plastic bottles from your life and shower and super handy for traveling and the gym!

Makes 6 bars in Guest square moulds (approximately 50g per bar)
Use our Batch Size Calculator and the percentages provided here to easily adjust the volume of your batch.

Buy our easy-to-follow kit here.

Note: This formula has been tweaked slightly since the making of this video. Please refer to ratios here rather than in the video.

Ingredients:
Step 1
240g | 60% SCI surfactant (Use a face mask when working with SCI)
60g | 15% decyl glucoside
40g | 10% cetearyl alcohol
28g | 7% conditioner pellets
8g | 2% cocoa butter, certified organic, deodorised

Step 2
4g | 1% hydrolysed wheat protein
4g | 1% lactic acid
4g | 1% coco caprylate
8g | 2% essential oil or fragrance oil of your choice.
4g | 1% Geogard 221

Method:
(Work in a well ventilated area, put on your dusk mask and turn on the extractor fan if you have one, the SCI fumes are very unpleasant at the beginning.)
 
  • Melt Step 1 ingredients in a pot on the stove. Once it's starting to melt, blend with a stick blender to speed up the process and get a smoother finished bar. Blend until the mixture comes together to form a paste-like consistency. 
  • Take the pot off the heat and blend in Step 2 ingredients.
  • Using a spatula, pour the mixture into moulds. Smooth top over with a knife. It can be difficult to get a clean finish so don’t worry if it’s a bit messy.
  • Pop them in the fridge to set.

About the ingredients

We know some of these ingredients are unfamiliar so here's a quick summary of what they are and what you do.

SCI (sodium cocoyl isethionate) - a coconut oil-based surfactant. It is very mild on skin, hair and eyes and has a silky skin feel. SCI makes a great lather and is good for making liquid shampoos and solid shampoo bars.

Conditioner pellets (aka BTMS-25) - Derived from rapeseed oil and palm oil (RSPO mass balance certified), these pellets make a luxurious hair conditioner (the best we've ever come across) and hair detangler for leave-on and rinse-off products.

Decyl glucoside – one of the first of the alkyl polyglucoside (APG) surfactants. APG surfactants are obtained from renewable, plant-derived raw materials, such as vegetable oils and starch. They have first-rate environmental and skin compatibility profiles and fit in well with consumer demands for wellness, 'green solutions', mildness to human skin, and safety for human health.

Lactic acid - Our lactic acid is produced from fermented corn. It is used to make a harder and longer-lasting bar and has excellent exfoliant, moisturising and deep cleansing properties.

Hydrolysed wheat protein – derived from wheat germ it is used to increase hydration and elasticity, protect cuticles and strenghten hair. Because of its low molecular weight, it easily penetrates the hair shaft and absorbs into the inner fibers of the hair.

Cococaprylate – a skin-conditioning agent naturally derived from coconut oil to provide hydration, spreadability and slip.

Geogard 221 - Ecocert approved preservative.

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Solid shampoo bars recipe