Advanced,  Soaps,  Tutorials and recipes

Set out to conquer space with Starstruck Coco soap!


This handmade soap recipe will take you places…

Forget about having your head in the clouds… How about having your head in the stars? Starstruck Coco soap promises you a space odyssey without leaving your bathroom! So get on board the Coop Coco space shuttle and discover our new decorative handmade soap recipe. It will take you to new heights!

This soap’s iridescent stars, beautiful marbled planets, enchanting sky, and delicately aromatic notes of fruit and mint will charm all explorers—even the most discerning ones. As its light, fragrant lather gently cleans your hands and body, close your eyes and imagine yourself as a space explorer, travelling through the twists and turns of the vast universe… What a trip!

Get ready to expand your horizons and escape the day-to-day by making this handmade soap with essential oils. Are you up for the adventure? All aboard!

How to make Starstruck Coco soap?

Before you begin

This cold process soap recipe requires that the temperature of the oil and the sodium hydroxide (lye) must be below 30º C.


“Planets and stars” glycerin soap inserts

Cold process soap recipe

Base oils
Sodium hydroxide solution
Essential oil mixture
Colourant mixture for making the sky
Colorant mixture for the top of the soap


Good to know!

Even though all of the colourants can be swapped to suit your tastes (if you want to make a pink-skied soap, for example, you can), we recommend that you stick to the mixture of liquid colourants and micas for the embedded stars and planets in the given quantities. If you opt for a different formula, you may not achieve the same effect.

The scents can also be swapped to suit your tastes. However, pay attention to their effect on trace.

Steps to follow

  1. Prepare and sterilize your equipment and workspace.
  2. To begin, weigh and mix the essential oils in a small ramekin.

Preparation of the “planets and stars” glycerin soap inserts

  1. Weigh the quantity of clear glycerin soap required, and divide it into five portions of 16 g each (in order to make 5 stars). Place each portion of glycerin in a ramequin and cut into small squares.
  2. Melt each portion of soap with the colourants. Use three drops of yellow liquid colourant and one drop of star dust mica per star. Measure out the mica using the mini measuring spoon labelled “DROP”.
  3. Once everything has melted, add 1 ml of the essential oil mixture and 1.12 g of caprylis oil into each portion of glycerin. In other words, add 1 ml of essential oil mixture and 1.12 g of caprylis oil per star.
  4. Pour the soap into the star-shaped silicone column mold. To keep the mold in a vertical position while you are pouring, place it in a tall, narrow pot with the opening facing to male soap
  5. Wait until the soap hardens before unmolding. Repeat this process four more times in order to make five stars. File the edges of the stars if they are uneven.Cold Process soap recipes
  1. Weigh the white glycerin soap. Divide into two equal (40 g) portions separated into two ramekins, and cut into squares.
  2. Weigh the transparent glycerin soap. Divide into two equal (30 g) portions separated into two ramekins, and cut into squares.homemade soap recipe
  3. For the first planet: In two pyrex measuring cups, melt one portion of each glycerin soap (white glycerin and transparent glycerin) separately. Once melted, add four drops of blue liquid colourant into the transparent soap. Repeat these steps for the second planet, but add four drops of pink liquid colourant to the melted transparent glycerin.
  4. Once everything is melted, add 1 ml of the essential oil mixture and 2.1 g of caprylis oil to each ramekin.
  5. Set the round silicone column mold into a tall, narrow pot so that it is held in a vertical position with the opening facing upwards. Pour the soaps (the blue transparent glycerin soap and the white glycerine soap) into the mold at the same time, so that both soaps flow into the mold simultaneously, giving the planet a marbled pattern. Repeat the procedure for the second planet, with the transparent pink glycerin soap and the second portion of white glycerin soap.homemade soap with essentiel oil
  6. Wait until the soap has hardened before unmolding.

Cold process soap preparation

  1. Take the necessary precautions for handling sodium hydroxide safely
  2. Prepare the sodium hydroxide solution: measure the water and sodium hydroxide separately; pour the sodium hydroxide into the water, contained in a Pyrex measuring cup or HDPE pot; mix together and leave to cool.
  3. While the sodium hydroxide solution is cooling, weigh the coconut oil, castor oil, and mango butter in a large stainless steel bowl and melt in the double boiler. Once melted, remove from heat, and add the grapeseed oil and the green tea maceration. Set aside to cool.
  4. Prepare the silicone loaf mold
  5. In four different containers (measuring funnel pitchers), disperse each colourant (activated charcoal; the titanium dioxide together with the zinc oxide; ultramarine blue; green oxide) in oil using some of the mixture from step 14. Crush the colourant granules with a silicone spatula. This will help prevent lumps from forming when you add the soap to the to make lye soap
  6. When both the sodium hydroxide solution and the mixture of vegetable oils have reached 30º C, add the sodium hydroxide solution to the oils, mixing with an immersion blender.
  7. Mix the oils and sodium hydroxide solution together well. At light trace, add the rest of the essential oil mixture and the sweet almond oil (superfatting).
  8. Divide the soap batter equally into the four measuring funnel pitchers containing the colourants.decorative handmade soap
  9. Using the immersion blender, carefully mix each portion of soap batter so that the additives are fully incorporated into the soap. Mix the soap batter with the white colourants (titanium dioxide and zinc oxide) first, then rinse the blender. Repeat for the green soap batter, then the blue soap batter, and lastly the black soap batter. Rinse the blender well between each colour to avoid mixing them together.DIY soap with lye
  10. When the soap batter has a medium-fluid consistency, take the measuring pitcher of black soap and pour a thin layer into the bottom of a large, empty bowl, allowing the soap to slide along the inside of the bowl.making soap with lye
  11. Next, gently pour a thin layer of blue soap (again, allowing it to slide along the inside of the bowl), then a thin layer of green soap, and then white soap.
  12. Continue to alternate the layers in this order, until you have poured almost all of each coloured batter into the bowl. Set aside a little of each colour to make the decorative pattern on the top of your soap.
  13. Once you have finished filling the bowl, pour some of it into the mold. Distribute a few stars and a planet in the mold. Pour in a bit more of the batter, and then place the remaining stars and planet in the mold. Lastly, pour the remainder of the batter from your bowl into the mold.
  14. Make lines on top of your soap with the batter remaining in the four measuring funnel pitchers, and draw rosettes using the stem of the thermometer.
  15. Using a sieve, sprinkle mica over the surface of the soaprecipe cold process soap
  16. Cover soap for 24 to 48 hours.
  17. Unmold using gloves. Cut soap and leave in a cool, dry place for 4 to 6 weeks.


This soap is intended for body use.

Leave a Reply

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