Rainbow Soap – Tiger Stripe Soap Design

Bramble Berry recently sent me a set of their rainbow micas for cold process soap. I immediately set to work creating a series of rainbow soap designs. This rainbow tiger stripe design is easy to make and the finished soap is bright and happy looking.

For more tiger stripe soap designs, check out Holly Berry Tiger Stripe, Mermaid Orchid Tiger Stripe and Juniper Lemon Yogurt Soap. The tiger stripe is one of my favorite designs to do in cold process soap!

rainbow soap

The rainbow mica set from Bramble Berry comes with 7 colors. I mixed the Party Pink + Merlot to get a reddish color and I mixed the Kelly Green + Caribbean Blue to get Indigo.

rainbow soap mica

Rainbow Soap – Tiger Stripe Soap Design Recipe

Coconut oil – 12 oz. (37.5%)
Shea butter – 2 oz. (6.25%)
Avocado oil – 2 oz. (6.25%)
Castor oil – 2 oz. (6.25%)
Rice Bran oil – 4 oz. (12.5%)
Olive oil – 10 oz. (31.25%)
Sodium Hydroxide – 4.6 oz.
Water – 9 oz.
Lemongrass Essential Oil – 20 grams
Lavender Essential Oil – 15 grams
Cedarwood Essential Oil – 15 grams
Spearmint Essential Oil – 10 grams
Merlot Mica + Party Pink Mica – 1/8 teaspoon + 1/8 teaspoon
Racing Stripe Orange Mica – 1/4 teaspoon
Yellow Lip Safe Mica – 1/4 teaspoon
Kelly Green Mica – 1/4 teaspoon
Caribbean Blue Mica – 1/4 teaspoon
Caribbean Blue Mica + Queen’s Purple Mica – 1/8 teaspoon + 1/8 teaspoon
Queen’s Purple Mica – 1/4 teaspoon
White Mica – 1 teaspoon

Safety Warning: This recipe is for soapmakers who have a basic knowledge of the soapmaking process and know the correct safety procedures to use when handling lye. If you are new to soapmaking, visit our free soap making guide or check out our Basic Soapmaking eBook. Be sure to wear safety goggles and gloves while soaping.

Step 1 – Create your lye solution and set it aside to cool.

Step 2 – Melt the coconut oil and shea butter.

Step 3 – Add the liquid oils to the melted oils.

Step 4 – Add your essential oils.

Step 5 – Once your lye solution and oils are between 90-100 degrees F, mix your soap to emulsion.

IMG_0976 IMG_0977 soap-stickblender mixing-soap


Step 6 – Divide your soap into 8 cups.

IMG_0983 mica rainbow soap

Step 7 – Color each cup with one color (or blend of colors for red and indigo). Use a mini-mixer (coffee frother) to really get each color blended.

rainbow color soap

Step 8 – Pour 1/3 – half of each color in a line down the middle of the mold as shown. Repeat until each color is used up. If it gets thick, no worries, just keep pouring.

tiger stripe soap tiger stripe soap design IMG_0988 layered rainbow soap layered soap tiger stripe rainbow soap

Step 9 – Spray your soap with alcohol to combat ash. Allow your soap to saponify overnight. Unmold, cut and cure your rainbow soap!

rainbow tiger stripe soap

Happy Soaping!

-Amanda Gail

By |2017-02-01T15:32:32+00:00May 17th, 2016|Cold Process Soap Recipes, Soapmaking Tutorials|6 Comments

About the Author:

I am a soapmaker, author and blogger! I started blogging in 2008, sharing soap recipes, design tutorials and publishing articles on various topics of soapmaking.


  1. Laura January 17, 2017 at 1:37 pm - Reply

    Hi Amanda :),

    I love this soap design! 🙂 I tried it a couple of weeks ago and had to come reread the notes here because I thought I must have messed it up. I used a different FO, but everything else was the same and there was no way it was ready to unmold and cut after sitting only overnight. Looking again at the recipe, it certainly looks like it would be a softer recipe requiring much longer in the mold, so I am trying not to be concerned about this batch, but I really wanted to ask to help put my mind at ease…lol :). Thanks for all the fun ideas and information!

  2. Grace-Ann May 21, 2016 at 9:12 am - Reply

    Hello, thanks for sharing. I too would like to read the answer to Ella’s question. Grace-Ann

  3. kamila May 21, 2016 at 8:30 am - Reply

    Colorful and fun soap, I gotta try this, thanks for sharing Amanda 🙂

  4. Ella May 20, 2016 at 3:20 pm - Reply

    Hello, beautiful soap. A quick question about FO: do you find that mixing them with warm oils instead of adding them to soap batter helps if they misbehave? I have some oils that speed up trace or separate, I am wondering if your method would help.
    Thank you for any advice

    • Amanda Gail May 21, 2016 at 9:10 pm - Reply

      Hi Ella! Sometimes it does help. By adding them to the oils you are diluting them a bit before they mix with the lye. You can also try using more water. I hope that helps!


      • Ella May 22, 2016 at 12:35 pm - Reply

        Thank you for the reply. I need to try it. I have some very nice FOs that like to cause problems, maybe that method will be better.

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