johnb
Forum Replies Created
-
Benzethonium chloride (HYAMINE 1622) is a cationic surfactant usually employed as an antimicrobial.
BTZ will react with the anionic surfactants (SLES, SLS) in your formula to form an inert waxy product. -
Micellar waters didn’t exist before 2013/14 because the marketing departments of some large cosmetic companies hadn’t invented the terminology.
Micelle has a scientific definition (have a look on Google).
Micellar water, on the other hand, is a vague term thought up by sales and marketing departments to sell dilute solutions of detergents/surfactants with a few miscellaneous additives for a very high price.
-
It used to be said that tear-free shampoos were formulated with benzyl alcohol as preservative. The preservative properties were incidental to its real purpose of acting as a local anaesthetic on the eye.
Anyway, that is by-the-bye.
A look at the ingrdient listing of a well known baby shampoo will take you a long way in formulating something similar.
Johnson & Johnson Baby shampoo declares:
Aqua,Coco-Glucoside,Sodium Lauroamphoacetate,Sodium Laureth
Sulfate,Citric Acid,Polysorbate 20,Peg-80 Sorbitan Laurate,Peg-150
Distearate,Sodium Chloride,Polyquaternium-10,Sodium Benzoate,Parfum,CI
15985,CI 47005 -
Traditionally, rosewater comprised the condensate water remaining after the steam distillation of rose oil (otto). The term “triple rosewater” meant that the same water was used for the distillation of three lots of roses and was supposed to be three times as strong as single rosewater.
Traditional rosewater is a solution of the water soluble components of rose oil, mainly phenethyl alcohol together with citronellol, geraniol, linalool, nerol and numerous trace compounds.
The relatively high level of phenethyl alcohol makes the rosewater self-preserving.
You can easily add phenethyl alcohol if you are making your product by a different method it lacks this important ingredient.
Phenethyl alcohol has a strong odour of roses and may well round off your rosewater’s bouquet.
Phenethyl alcohol is widely available and is very low cost. Natural phenethyl alcohol is more expensive and available from Dr Straetmans and other suppliers.
You must, of course, test the effectiveness of your preservation system.
Phenethyl alcohol has a big advantage in a product like this as it is a natural component of the rose aroma.
About 1 - 1.5% should be suitable.
Note: it dissolves very slowly.
-
You could precede the term “Ingredients” by the “What’s inside” phrase.
“Ingedients” is a requirement.
-
Many years ago there was a product (bath oil, I think) which had three separate layers. The product was quite useless but it looked good in the bathroom as the three layers were three different colours.
I had a request for a five layer product to compete but the best we could manage was four - and we weren’t able to get a good enough colour difference between the layers.
The layers comprised water bottom layer, light mineral oil for the middle and the top layer was a volatile silicone (cyclopentasiloxane). The colour was water soluble for the lower layer and oil (or rather silicone) soluble. By careful selection of colours there was a three colour system with the middle layer a combination of the upper and lower layers.
Looked spectacular, especially after shaking and allowing to separate again but, as said above, totally useless.
-
Hello
I’m Johnb. I’m very old but have considerable experience in our industry having worked for Unilever, Paterson Zochonis and was Chief Chemist at a French Perfumery House for more than ten years- that’s after initially working ten years in scientific research for the UK government.Old, maybe, but my brain still works (even if the body is a bit decrepit) and I hope to be able to make some useful contribution to the group.
My expertise is in deodorants and antiperspirants, fragrances, skincare and small molecule topical pharmaceuticals. I have also worked in a number of other areas that involve fragrances including I&I, air fresheners and so on.