Some Essentials on Essential Fatty Acids

Once vilified, fats and oils are now celebrated. Hardly a day goes by without me seeing a post about the top ten uses for coconut oil or such. Honestly, I think the best part about virgin coconut oil is that it smells and tastes like coconuts. And refined coconut oil? It's a good cheap oil for soap, bringing lots of lather to your recipe. It's a good source of medium-chain fatty acids and has a good shelf life. However, it only has a small amount of Linoleic acid, one of the essential fatty acids (EFAs).

I recently finished reading Susan M. Parker's Power of the Seed, and I recommend it to anyone who wants to learn more. It's a pretty awful title, but it's a good book. It covers the chemistry and components of oils, plus it includes a lot of profiles (about 90, I believe) of various oils. There are several appendices that help present the information on the oils in various ways, including a saponification value chart, if you make soap). There are few recipes if you don't know where to start with all the oils.

A Little Science

There are two essential fatty acids- Linoleic Acid (LA) and alpha-Linolenic acid (LNA). They are called such because your body doesn't produce them, so you need to get them from other sources. They're both polyunsaturated fatty acids, meaning they have two or more double bonds in their carbon chains. Saturated fatty acids don't have double bonds and are less susceptible to oxidation. LA has 2 double bonds, and LNA has 3, so LNA has the shorter shelf life of the two.

LA is an omega-6 fatty acid, and LNA is omega-3. You've probably heard of omega-3, and maybe omega-6 and omega-9. All unsaturated fatty acids have omega names, and the number refers to the first double bond in from the free end (the omega) of the chain. For omega-3, this means means your first double bond occurs at the third carbon in the chain,counting in from the omega. Saturated fats do not have omega names, which probably makes them sad.

Eating Your Omega-3

It's not my place to give medical advice, so I'm going to discuss sources rather than health benefits. It's easier to get enough linoleic acid in your diet, but fewer foods have high percentages of LNA.  You'll often see omega-3 supplements, sometimes in pill form or as a straight oil.

You might think of fish when you hear omega-3, and most of the supplements for omega-3 fatty acids are various of fish oils. Other than a brief time when I was four years old, I never liked fish, plus I went vegetarian when I was a teenager. So I do not recommend fish, because I think they're gross as a food and they belong swimming merrily in the water. And if you're an omnivore who doesn't like fish but is considering fish oil supplements, I have two words for you- fish burp. Some will claim not to cause fish burps, but do you really want to risk it?

If want to consume your omega-3 fatty acids through whole foods, there are a few plant sources that are high in LNA. Chia and flax seeds are excellent sources. You should store both in the refrigerator, and grind the flax before using. Hemp seed and walnuts also provide a fair amount of LNA. Several berry and fruit seed oils have a decent amount, but it'd be hard to eat enough fruit to get the proper amount of fat.

If you want to supplement, flax and chia seed oils are available in pill form. If you're vegetarian, check the ingredients, since some of the supplements use gelatin. While your body can produce DHA and EPA (more omega-3 fatty acids), it's not always very efficient, so there are supplements for those two fatty acids as well. DHA and EPA typically come from fish oil, but there are some vegan supplements out there. I think they're derived from algae. The best sources for GLA (an omega-6) are borage, evening primrose, and black currant seed oils. These also come in pill form, and again check the ingredients if you're vegetarian.

Omega-6 for Your Skin

In addition to eating LA and LNA, you should consider using oils with these fatty acids on your skin. Dry, damaged, or acneic skin often have low-levels of linoleic acid, so using oils rich in LA might help balance the skin. If you're not using a single oil, look for oil blends or lotions that contain LA-rich oils. Since they are more likely oxidize quickly, a blend will probably help with shelf life.

A few good oils with high percentages of LA include evening primrose, grape seed, hemp, walnut, and wheat germ. Safflower and sunflower are also good sources, but only if they're not the high-oleic hybrids. Popular skincare oils argan, rose hip seed, rice bran, and sea buckthorn also have decent amounts. The oils have different properties, so some may be better for your particular skin type.

Susan M. Parker, Power of the Seed: A Guide to Oils for Health & Beauty, Port Townsend, WA: 2014, Process Media. ISBN: 978-1-934170-54-0

In the Works and Preservatives (again)

It's been rather difficult thinking about products for fall and winter, when it feels summery or spring-like here in the Bay Area. I have a few items I will post soon for the fall, plus some wintery items. These were my favorite seasons when I lived in New England, with the changing leaves and then the snow. I don't miss the summers there though- hot and humid.

I will be introducing a few body sprays that use hydrosols in the next few weeks, and since these have water, I will be using preservatives. At first I wanted to to avoid preservatives, mostly because I wanted to say all of my products are preservative free. But that's silly. One is derived from radishes- Leucidal (Leuconostoc/Radish Root Ferment Filtrate), and the other is potassium sorbate, a food grade preservative. I'm also using alcohol in some products, because I really don't want anything growing in them. 

I do microbial testing on the products, and so far everything looks good- nice and clear, with zero growths. Preservatives are better than any of the nasty things that can grow on those slides.

Learning about Lotions Part 1- Preservatives

I've started researching preservatives and other lotion ingredients, and soon I will start experimenting with making lotions again. I don't know if I'll sell lotions- it depends on how the experiments work out. I'll be writing about the various elements of lotions as I go. These are general thoughts, not in depth information on any one item. I find researching lotion making very exciting, and I want to share that knowledge with people who might not know what goes into making lotions. I think it's important to know what is going into the products you use, why they're there, and how they work.

I have made lotions and creams in the past, but I haven't made any to sell. If I were to sell any, I couldn't market my brand as preservative free, because there's no way I'm selling a lotion without something to keep it safe. Recently I've started to feel like calling Ivre de Fleurs a preservative brand is causing me to be a part of the scaremongering against preservatives, and I don't want that. I want to make products as naturally as I can, but I also don't want to be limited to using only ingredients that the average person can pronounce.

I'm starting with some natural preservatives in my experiments. It sounds like they don't work well for the most part, but maybe I can get them to work somehow. The ones I'm trying now are various fermentations and extracts, and some offer additional benefits beyond preserving. If they don't work, I'll start looking into other preservatives. A broad-spectrum preservative system is important to keep your water-based products free from bacteria, yeast, mold, and fungus out there. I've got a little kit to test for preservative efficacy, so I should be able to determine some things quickly, but then you have to make sure it works over time (no separating, no mold or fungus, no other nasty things). If I have a good recipe, I'd need to send it off for challenge testing, to make sure it's verified safe.

Parabens are one of the preservatives that you hear most often about, and usually not in a good way. Parabens are actually really good at preserving products, they are used at very small percentages, and I'm not convinced they'll lead me to a long and painful death. While a lot of people don't bother to check the labels of their beauty products, those that do often don't want parabens in them, so I'll be skipping them.

By the way, honeysuckle extract has a molecule that acts like a paraben. I've only read a little into it, and I'm not sure if it's effective as parabens are, but if you are avoiding parabens, you might want to add honeysuckle extract to your list of ingredients to avoid. Grapefruit seed extract might also have parabens in it- the parabens are being used to preserve the extract, and are then helping to preserve the final product. It seems like there's a lot of controversy on grapefruit seed extract, so I don't want to go there.

Formaldehyde donors are another type of preservative, but I haven't read too much into them yet. I have no plans to use them, but I'd still like to read up on them some more.

There are a few preservatives that can be listed as "parfum" or "fragrance" on a label. If a product claims to be preservative free but lists fragrance, they may or may not be using that fragrance to preserve the product. I've read of two- one that has a rosy scent, and another that's more vanilla/almond. I'm slightly confused as to why fragrance would be preferable to preservatives, but I guess it depends on why you're avoiding an ingredient.

Women and Science

I love science. There is so much out there in science, and I really regret not pursuing it in college. I was rather good at chemistry, did well in biology, and had so much fun in bacteriology. I never did physics, mostly because I wasn't going to be able to get into "honors" class since I didn't take the "honors" Algebra II class. I'm not much of a math person, though I did well in the classes that I did take. My chemistry class in college was simpler than the chemistry class I took in high school, and while it was interesting, it was practically a joke.

I see stuff in the news about getting little girls interested in STEM subjects, with Goldie Blox and what not, but I think there needs to be more focus on keeping teenage girls interested in science, and let them know what studying science can lead to career-wise. I'm more interested in science (in particular the parts that relate to beauty products and scent), but technology, engineering, and math probably have interesting career paths that should be considered and promoted.

Science feels like it's come up a lot for me personally in the last few years. Being married to a software engineer (who reads physics textbooks for fun) certainly helps with that, but in other ways as well. At my most recent show, I was asked by a few people whether I had a science background. While most of the beauty products I make don't involve complex scientific knowledge, there is still science to them. I study the properties of different oils and butters- the types of fats in them can change how they work, so the oil you need depends on the type of product you're making.

Soap making is fun, because it involves a chemical reaction right before your eyes- lye (either sodium hydroxide or potassium hydroxide in water) combines with oil to make soap! At least real soap, not the detergents you'll see sold at most stores. You need to use some math (not scary math, and there are calculators available online just for this purpose) to calculate how much lye you need to saponify your oils. Different oils have different requirements for lye, and typically you're using more than one type of oil to make your soap. This goes back to the above, where the composition of the oils bring different properties to your soap. Since you don't want any lye left over in your soap, you superfat your recipe, which means you need to calculate your lye so that not all of the oils are saponified. Superfatting  means you're left with some left over oils in your soap, which makes it good for you skin.

Lotions present a different set of science issues- like soap, you're combining oil and water, but you want different results.An emulsifier is needed to keep the water and oil from separating. You have water phases and oil phases, you keep track of their temperatures, and combine them into a magical creamy lotion. Then you need a preservative- this is where biology and bacteriology come in. Lotions are good breeding grounds for all sorts mold, bacteria, fungus, etc., so a preservative slows that growth down.

I've been getting my science fix that way for awhile, but now I'm spending more time studying chemistry in regards to perfumery. There's the components of the essential oils, plus I'm reading up on some of the aromachemicals out there.