Thursday, April 4, 2013

Ingredients: Natrasorb Bath

Natrasorb Bath (INCI Tapioca starch) isn't the kind of tapioca starch you can buy from a regular store. It's modified so it can hold a ton of oils - carrier oils and fragrance or essential oils - in a powdered state. It's hydrophilic - meaning it likes water - and it can absorb oils easily. When you're making something like bath salts or bath bombs, Natrasorb Bath will help fix the fragrance to make it last longer.

Do not confuse it with Natrasorb HFB (INCI Aluminum Starch Octenylsuccinate (and) Acrylates Copolymer (and) Magnesium Carbonate), which serves the same function. 

It's quite a fascinating process to see the way it absorbs oils! I measure out between 3% to 5% for my bath bombs and after adding up to 5% fragrance oil, it looks as if nothing had happened, except this really fluffy white powder now smells really great! I love to use it in my dry shampoo at 3% to 1% fragrance oil to make my hair smell nicer. You can use it up to 100% in any product. (Although at 100%, isn't it just a bag of Natrasorb?)

5 tablespoons (75 ml or a little less than 1/3 cup) weighs 8 grams! Ingredients like Natrasorb Bath are the reason I tell you not to use volumetric measurements. If you decided to use 3 ml of this product instead of 3 grams, I don't think the scale would register it!

96% Epsom salts
3% Natrasorb bath
1% fragrance oil
colouring (optional)

Measure out 3% Natrasorb bath and pour the 1% fragrance or essential oil into that container. Mix well. Add the Epsom salts. Add a titch of colour - if you're using liquid colours, I mean a drop or two! - and mix well. You're done!

66% Epsom salts
20% baking soda
10% citric acid
3% Natrasorb bath
1% fragrance oil or essential oil
colouring (optional)

Follow the instructions above by combining the Natrasorb bath and fragrance/essential oil first, then adding the rest of the ingredients. Only use a titch of colour as any more than that will set off the fizz!

50% Natrasorb bath
20% carrier oils of choice
29% Epsom salts
1% fragrance or essential oil
colouring (optional)

In any of these recipes, you can substitute Epsom salts for fine sea salts, but DO NOT use Dead Sea Salts in its place as it is really hygroscopic and will turn the product into a brick of fragranced loveliness that won't dissolve in the tub!

Join me tomorrow for fun formulating a foaming and moisturizing bath powders with this ingredient and others!


Anonymous said...

Just a quick comment on packaging for foaming bath products that combine baking soda and citric acid.

Glass containers with a tight seal, such as a bail jar or canning jar, can build internal pressure and explode, sometimes with significant force.

Katalin Michaels said...

Susan - your timing on this post is perfect - I've just discovered this product myself and I'm really excited about it. One thing I'm confused about, though (two things actually)... you say you use between 3 and 5 percent Natrasorb Bath, and even at 5% fragrance, it still absorbs it and looks as if nothing happened. I am not finding this to be the case with my stuff - and when I read the info sheet, it says that it starts to lose free flowing properties at 19% absorption (not sure if I said that right, but I think you know what I mean). Can you clarify if that's actually your experience? Also, just to be sure - is this product, whose inci is "Tapioca Starch", the same thing as "Modified Tapioca Starch", sold at Brambleberry, or another similar product called "Tapioca Starch Polymethylsilsesquioxane"? Thanks for your help!

Anonymous said...

That is a good question, Is the Natrasorb INSI Tapioca starch sold at Camden Grey the same as the Tapioca Powder sold at Bramble Berry the same thing? because they both list it as two completely different purposes but I'm thinking it is the same thing but am not quite sure. I use the natrasorb for my bath salts and wow! the fragrance definately last a lot longer.

cindy ladnier said...

I was wondering if the Natrasorb at Camden Grey is the right Natrasorb also because I was told the one at BB isn't the right one. I'm trying to find where to order the right kind. Is the one at Camden Grey the right one because the inci on there only says Tapioca Starch Manufactured in the U.S.A.. and I need the certain kind to use in a bath bomb frosting recipe that makes it able to be piped through Russian piping tips. That recipe is awesome from what I've seen so I want to use it very badly lol.

Susan Barclay-Nichols said...

Hi Cindy! Can you please provide a link with the INCI?

Judy Garcia said...

this is the link to Camden Grey. I have the same question as Cindy.
Thanks Susan

Susan Barclay-Nichols said...

Brambleberry doesn't have a listing for Natrasorb Bath. If they do and I've missed it, please provide me with a link directly to the product. Only Natrasorb Bath is Natrsorb Bath. You can find all kinds of things called tapioca starch, but only one carries the name. If in doubt, consult your supplier as there is no way I can know what every supplier in other countries carry, let alone the ones in my own. Your supplier should be able to answer all your questions regarding their own ingredients.

Judy Garcia said...

This one claims to be identical, thoughts?

Lisa said...

Hello Susan,
thank you for this article...and all your blog really :)

Can Natrasorb bath be used in face moisturizers for oily skin to absorb sebum?
Is natrasorb bath the same as Tapioca Starch Polymethylsilsesquioxane.

Thank you!!


Carole Heidema said...

Is Natrasorb a natural and safe product?


Susan Barclay-Nichols said...

Hi Lisa and Carole! I've answered your questions in today's Weekend Wonderings. The short answer is you could use it in a facial product for oily skin, and yes, I consider it safe. I don't consider it natural, though.

Lisa D. said...

Can naturasob bath be used in cp soap. I know that people say the add clay to help hold fragrances that fad easily. Could this be used to help hold EO that fade?