Hello,
I am new to this site and my chemistry knowledge is pretty dusted but I would like to start making my own cosmetic products for personal use and will appreciate any advice you kind people can give :-).
I am trying to make a very light facial moisturizer and have ordered ingredients from Lotioncrafter. I am planning to make a hyalorunic acid gel as follows:
Percent Grams Ingredient
85 85 Apple Essence
1 1 Hyaluronic Acid HMW - 1.0 - 1.5 Million Daltons
1 1 Hyaluronic Acid ELMW 80,000 - 110,000 Daltons
5 5 dl-Panthenol
5 5 Apple Stem Cell Extract
3 3 Leucidal Liquid
I have done this one previously and it worked well.
This time I would like to possible mix this HA gel with the
LC995 Cyclomethicone( 96% Cyclopentasiloxane (D5)) somehow and then add some of Lotioncrafter EL40 ( Dimethicone (and) Dimethicone Crosspolymer) for thickening.
Is it at all possible ? Do I need to add anything if I want the HA gel and the silicone base to come together ?
I believe the silicone base is anhydrous so I can not add the HA to it just so ( as powder) right ? :-) :smile:
I apologize if I am talking rubbish - any advice is appreciated.
Thank you
Helena
Comments
Thank you for any advice.
Thanks again
Decyl glucoside is a surfactant. It’s for foaming products, % are wrong, you have a great crosslinked silicone but it’s not a thickener, and I don’t understand what’s apple essense, is it a fragranced water?
If I post the question like this : How do you combine Hyaluronic Acid powder and slilicone base ? Can you then please give me some advice ? Thank you so much !
Being an expert in a different field makes me humble enough to realize my incompetency in others
I am trying to formulate this just for my own use so the question of what benefits do the silicones bring to the table has been already answered - I love the consistency of products that contain them.
I believe a genetic disposition makes my epidermis somehow “impermeable” for a multitude of ingredients and if I use any facial product containg oils, I can literally wipe the entire layer off my face hours after application. Silicone based products work for me. So I would like to make my own ones if it is possible.
Thank you again for your support !
Waterphase:
Aqua deionised = 1- sum (all ingredients below)
disodium EDTA - .2%
glycerin - 3%
ceramides and cholesterol complex - 3%
HA low weight- .5%
germaben II- 1%
oil phase:
cyclomethicone - 2%
emulthix (aka viscoptima) 2.5%
EL40 - 1.5%
Process: mix water and oil phase separately, then combine.
the missing link was cold process emulsifier. The reason why I chose emulthix: sodium polyacrylate and silicones. Easy to work and good slip (especially combined with silicones), great viscosity.
your benchmark uses ceramides complex as active. You can add apple stem cells, but I would prefer ceramides. Both are fairy dust though.
You should change preservative. You are making it at home and need a reliable system.
Keep HA HMW for other projects. You don’t need it here.
I will keep learning - the book on Silicones that Microformulation sent the link for is beautifully written and even pwople like me who have forgotten a lot of the chemistry can enjoy reading.
Thank you Belassi for your respose, I understand now. Why is D5 restricted in Europe?
All you need to do is use Sucrose Stearate as an emulsifier and you should achieve the result you are looking for. But, I would switch to a Super Low Molecular Weight HA to ease processing.
See website for details www.desertinbloomcosmeticslab.com
The first thing I made myself was the HMW HA gel serum using Neroli hydrosol in place of part of the distilled water which gave it a nice scent and I was so happy with the ease of making this that I decided to learn more and say goodbye to Sephora like places... I bought a couple of those air-tight containers and it makes me smile when I know that the most expensive part of something I make and enjoy is - the container ! I only have the lab precise scales, a few beakers, a thermometer and a dedicated stick blender, ph test strips and a zest to learn. I share a batch with a friend so that it is spent soon and we do not need to keep it for long.
But now I needed advice for how to work with the silicons so I came here.
Thank you again !
From what I understand - the very simplified principle for creams is : you combine the water soluble ingredients in the water phase, oil soluble in the oil phase and then an emulsifier and force put them together into an emulsion. And they you work on how thick they should be and other properties you want ..etc..And you can do it with heat or without correct? For the silicons it is without the heat right?
I must sound like a kindergarten child to you
There is much more to it than "combine the water soluble ingredients in the water phase, oil soluble in the oil phase and then an emulsifier and force put them together into an emulsion". My advice, go to makingcosmetics and look at the types of emulsifiers. And then research each type.
Talking about bug food .....don't we all eventually become worm food anyway :-).
I use the hydrosol for the smell only, I know it is scented water basically but it gives a fragrance to the product. I will eventually try to add fragrance - it is added to the completed product right ?
D4 and D5 are respectively identified by the Agency’s Risk Assessment Committee as a persistent, bioaccumulative and toxic (PBT) substance and a very persistent and very bioaccumulative (vPvB) substance under the criteria in Annex XVIII to Regulation (EC) No. 1907/2006, which may give rise to environmental concern when cosmetic products containing D4 or D5 are disposed with water. Also, considering that D4 and D5 evaporate over time after application; while the environmental risk in these products has not been assessed, the Commission addresses the risks by setting a restriction limit on intended usage of D4 and D5 in wash-off cosmetic products only.
D4 and D5 are restricted with a maximum concentration not exceeding 0.1% by weight of either substance in wash-off cosmetic products. The new restriction applies from February 1, 2020.
(INCI: Cyclopentasiloxane & Dimethicone & Cyclohexasiloxane & Isohexadecane & Ammonium Polyacryloyldimethyl Taurate & Tocopheryl Acetate & Polysorbate 20 & Polysorbate 80)