Monday, August 23, 2010

Esters: Super Sterol esters

Super Sterol is a brand name for the product C10-30 cholesterol esters, and it's produced by Croda. It's derived from wool wax and shows excellent spreading and excellent adhesion properties. It is a clear, white to yellow, odourless oil like substance that is quite thick compared to other esters.

Our stratum corneum lipids contain cholesterol, about 20% to 25% of the lipids are cholesterol and another  5% to 10% are found as cholesterol sulfate. You'll also find cholesterol in our sebum. C10-30 cholesterol esters have a natural affinity for our skin as the cholesterol is such a big part of our natural lipids, so it's a good skin conditioner and moisturizer with repair abilities.

It's soluble in oils and insoluble in water, but it can absorb up to 50% of its weight in water, like lanolin and has some emulsifying properties.

I've used this before in a lipstick base. Although it felt very nice on my lips - one of my favourite recipes for a lip balm - it was a little soft and needed more waxes. Because it has no flavour, it's a great addition to a lip product, and the adhesion will help keep your colour on longer!

Its suggested use is from 2% to 10% but it can be used at up to 100% in a creation (although at that point, you're really just re-bottling the product!). As this is a good skin repair product, consider using it in your facial serum for dry skin, in a whipped butter or lotion bar intended for chapped skin, or a balm. You can include it in your lotions and creams or any other emulsified product as you would another oil or ester - this would be fantastic in a facial moisturizer or a product intended for really trashed skin. This would be fantastic in a product intended for your nails - a cuticle balm or lotion - as it contains lanolin.

Join me tomorrow for more fun with esters when we formulate with Super Sterol esters!


melian1 said...

i am so enjoying your series on esters! and this one is so timely, as i have an opportunity to get super sterol thru a co-op at much reduced cost.

keep up the great work!

Anonymous said...

Once again, thank you for an interesting article:)

Lissa said...

Super Sterol rocks..
Last year my son's lips were ravaged from the Accutane he was using. Peeling, dry, and bloody. He was given all types of balms from the Drs. Nothing worked completely. I finally made a lip balm using SS and other great oils. His lips healed and never again peeled.

mary tartaglia said...

I realize this is an old post but if Lissa sees this it would be great if she could share the lip balm formula she used to heal her sons chapped lips.
Thanks Susan for a great blog.

Deb said...

I think I have seen lanolin listed as a replacement for sterol-am I right?

Kirsten Thomas. said...

I know this is old, and I know Susan is at the convention, but when anyone sees this, let me know please if you all know a place to buy this. The Herbarie and Lotioncrafter both have told me that they can no longer get it. I have contacted Croda, but don't know if they will want me to buy an elephant sized bag of it! I formulated one of my products with it, and have the containers printed up and now I am up the creek without a paddle. I only have enough to make 200 and then I am in trouble! If anyone knows where to find this, please, please let me know, thanks, k

leese said...

uh oh, Kirsten, I was just investigating this and read your comment. That's no good.

Susan Barclay-Nichols said...

Sorry for being so late on this, but I'm looking into it. This sucks so much when we can't get what we need for a formula, and Croda seems especially awful at this kind of thing. I hope to know something soon!