natural skincare classes

New lab is open

Natural Skincare Workshops


My new lab is ready !!


It’s been a hectic time in 2021. A year of great change, new projects, study, kids leaving home for good, and loads of home alone  time developping the Botanical Skincare Institute.

After buying my new home in a very rural area, and some big life changes this last year,  come see what’s going on in the world of La Formulatrice.   Read about how La Formulatrice is growing and developping in the Bordeaux area.

I have finished renovating my lab, which is a beautiful, modern space that is perfect for formulating and holding natural skincare workshops. Online courses, group classes, and custom formulations are all happenning now. I am developping innovative products to add to the onesI already teach, and have more ideas to offer various skincare classes, short and longer ones where you can get a serious dose of natural skincare know how in a weekend, for those who really want to make their own formulations like a pro and have a great base with several basic products that they can later personalize.

Join us for a unique, luxurious experience. These natural cosmetic workshops are led by a profesional formulater, on her way to becoming a certified cosmetic chemist. YES!! This is a year of learning and growing, and intense studies are under way with the Institute of Personal Skincare Science in Australia. By end of the year, if all goes well,  La Formulatrice will be an internationally certified  chemist specializing in cosmetic science and formulation!! I can take my products to an even higher level

I will show you how  to formulate with plants, flowers and fruits, and be able to safely make your own beautiful, highly effective skincare. All using only plant based, high quality botanical ingredients.

Use exceptional, unique ingredients not usually offered in your basic formulating classes.  Jasmine & rose wax, green tea wax, blueberry, cranberry or other effective fruit powders. Ayurvedic herbs like shikakai or amla, broccoli oil, avocado butter, not to mention all the choices of floral waters and essential oils ! How can you not end up with some spectacular skincare ?

These natural skincare workshops are fun and easy going but under professional guidance so you learn to formulate using correct methods to assure you create stable, safe, clean skincare.

For those not in the Bordeaux area or Sud Gironde, check out my online courses where you have everything you need to make certain beautiful products like solid shampoo bars, shimmering body oils, fruit based cleansing powders,  in a quick, easy way with how to videos, supplier lists for your country, beautifully designed files, unique formulas,  and more.

Check out details of the new lab here

watch a video of my class here:

New lab is open Read More »

"butterfly pea glycerite"

Glorious Glycerites

Make your own herbal  glycerites !

Since homemade herbal glycerites are a fantastic way to add some oomph, color, or botanical power to your skincare formulations, this is such a great subject! I get so many questions about how to make your own. I use them often in my natural skincare workshops here in Bordeaux, and they are included in my formulas in my online natural skincare courses available.                https://formulatrice.com/on-line-natural-skincare-courses/

make your own herbal glycerites

Now for the real interesting stuff, let me share some cool info about glycerine and glycerites to help you get started making your own amazing plant based glycerites.

What exactly is glycerine ?

Called Glycerin, Glycerine or Glycerol, one of the most widely used ingredients in skincare, is a substance present in all human and animal fats. It can be derived naturally by the fermentation of sugars, or by hydrolysis of fats, but it can also be synthetically made in a lab from petroleum based oils. In natural skincare we do not you these ones.

There are several different grades of refined glycerine, but in our natural or green lovely cosmetics we prefer the highest USP grade, naturally derived & made from 100% vegetable or plant oils, such as palm kernel or coconut oil. Glycerin derived from corn or soy are both Genetically Modified Organisms .

Glycerine is also a humectant, ( like honey!!) and can draw water from the environment and the dermis (the lower layers of skin) into the outer layers of the skin. They attract moisture to themselves, it keeps skin and hair moisturized, soft, and is a huge plus in our products!! But we have to be careful here , we shouldn’t : use more than 10% in general in a formulation, & should : use in combination with other natural emollients and botanical oils to help improve the feel of the moisturizer. A small % will help create a barrier against water loss which is exactly what we want. Too much can have negative effects, such as drawing too much moisture from your precious dermis to the surface which can dry out skin, or causing your final product to be too sticky.

And what is a glycerite ?

make your own herbal glycerites

make your own herbal glycerites

A glycerite is the final result of the strained liquid left after maceration of dried or fresh herbs, vegetables, or fruit, by using glycerine as the extraction method . Traditionally, dried or fresh herbs or plant matter are added to glycerine and left in a cool dark place to sit and macerate , while shaken gently daily, for anywhere up to 2 to 6 weeks. Many medical remedies are made this way .They can also be heated very gently in a slow cooker for 3 days, while the closed jar is immersed in water, as a faster method of extraction.

Now for the exciting bit,

Here’s the basic steps…..and you can really use just about any fruit or vegetable, herb, plant, dried or fresh, get glycerite happy and watch the magic happen . Don’t be afraid to include them in your natural skincare formulations!!

How to make Colorful Glycerites

make your own herbal glycerites

Warning : This is highly addictive, fun and so easy to do, so save some fridge space because you are going to go crazy making all sorts of different wonderfully colored and scented stuff to use in those wicked formulas you will be creating! And make sure nobody eats them!!! (this did actually happen in my house!!! )

  1. Take your washed, fresh, organic fruit , vegetable, plant or herb ( I did blueberries, cherries, pomegranates, rose petals , cinnamon, all full of super nutrients great for the skin) and chop it into smaller pieces , while making sure your workspace and equipment is sterile. Research your ingredients to see their benefits in skincare.
  1. Weigh the fruit /plant matter and note it in your special glycerite notebook. Foods with high water content will be much heavier then a dreid herb for example, and will give results that are much more watery and thin then a glycerite with an herb that has no water content.  Buy a pretty one to keep it fun and just for these glycerite recipes, it will fill quickly with notes you can refer back to !!!
  1. Put them in a sterilized jar, I recommend making small doses at first, as we use such small amounts ( 3-10% ) in our products , a little will last quite awhile and stay fresh. Fill with your vegetal glycerine , let it fill between the spaces, and then top off the jar to the rim. Weigh accurately to see exact amount of glycerine and note it down. You can also prepare the exact measures you would like in a formula before hand like this:

55% glycerine,

44.4% fresh fruit,

0.6% preservative

This is just an example, other percentages for different foods or herbs will vary. Just experiment as there are no exact rules here. For dried herbs , you can pour a very small amount of boiling water on the herbs first , infuse a few minutes, then top off jar with glycerine.

Add your preservative. Fresh food high in water will need more preservative, up to 1%.

  1. Label your jars with dates, ingredients, batch number, preservative name, as you’ll totally have no idea which is strawberry, raspberry, or cherry in a few days !!
  1. I store all my herbal glycerites in the fridge, but room temperature can work if not too warm. A wine cooler could also work. For fresh foods or plants and flowers , I macerate them about 14-20 days to get the maximum benefits of the ingredient, though some keep them only 5-10 days. This is experimental, without scientific backup, and there are no fixed rules, so see how your finished product looks and smells and take notes. The glycerine will absorb and hold the smell and color of the fresh food wonderfully, a dash in a toner gives an amazing yummy boost of originality and herbiness to your cosmetic. Dried herbs can be macerated a bit longer, some herbalists recommend 2-6 weeks!!
  1. Once your glycerite is ready and bursting with color, you need to filter it. A coffee filter works well, or I have even used clean stockings. This is much faster then the coffee filter method and I do it twice to strain fully. The coffee filter strains drop by drop , and can take hours. You can change the filter several times (with your gloved hands ) as the paper gets fully soaked and stops to strain after awhile. Be gentle so as not to tear the filter. Cover with a clean lid or foil while its being filtered to keep off dust. Then just go do your thing while it drips away into glory!!
  1. Once fully strained, close jars, label them , don’t forget to note in detail the final weight , the smell, texture, dates, length of maceration time, preservative used, and then store in fridge or cool dark cupboard. The more water content in your food or plant, the LESS viscuous your glycerite will be. ( kinda logical )

So what can we do with these Beautifully Colored Macerates?

make your own herbal glycerites

Add them to your natural skincare products like toners, creams, gels, lotions, and have fun!!!! How glorious is that???

Keep in mind that a small % will not always affect the final color of a cream, it works better in water based gels, but the colors are natural so not super stable and can fade after some time. Experiment, keep samples of your homemade herbal glycerites, and take notes!! Shelf life can last from 6 months till about a year, according to its’ water content and storage method. If you see funny bits floating on the bottom or it smells funny, bye bye lovely glycerite. When in doubt, do a micro count test, & learn from these experiences.

Last Note about Vital Preservatives

The shelf life depends much on how much exposure to the air the glycerite receives. Anytime you add water to a preparation, you invite bacteria, mold, yeast, and other undesirables. As a side note, even though glycerin has preservative properties at 50%-60% concentration of a formula, and even though it is a humectant and a lovely addition to skin cream, it cannot be used effectively alone to preserve a typical lotion or cream recipe. I highly recommend using a water soluble broad spectrum natural preservative , from the start of maceration in your plant or food based glycerites, we don’t want to take any risks or have them go off after one or two months only.

A nd now Fellow Formulaters ….

you know how it’s done, easy as pie, start with small quantities and get glycerite happy!!! Please post us your lovely results and photos of your homemade glycerites, we’d love to have a look at your creative efforts!!

Visit my facebook page to see more!!

Make your own herbal glycerites

Glorious Glycerites Read More »