What is the best RATIO of DRY oils & WET oils in practice?

Formulating

What is the best RATIO of DRY oils & WET oils in practice?

Posted by Dtdang on December 29, 2018 at 4:07 pm

I wish everyone A wonderful new year.
I am new in this area. I appreciate all inputs to my question:

What is the best RATIO of DRY oils & WET oils in practice of formulation?

Many thanks in advance.

Dtdang replied 5 years, 10 months ago 5 Members · 12 Replies
12 Replies

Dtdang

Member
December 31, 2018 at 10:30 pm

I experienced 50/50 reducing time to dry about 20 minutes
next will be 55% dry oil to 45% wet oil
will post results
Dtdang

Member
January 3, 2019 at 12:25 am

After studying, 70% dry oil / 30% wet oil the cream dries in around 5 minutes.
Microformulation

Member
January 3, 2019 at 1:29 am

What is your definition of a “dry oil” versus a “wet oil?” Is it referenced in an article?
Dtdang

Member
January 3, 2019 at 3:15 am

@Microformulation, dry oil is quickly absorbed and dried-out when exposing to air.
wet oil is opposite with dry oil.
example, rosehip oil is dry oil
and castor oil is wet oily

when applying the cream on the face, the cream is absorbed quickly and dried out few minutes later -> no grease feeling, just nice
Dtdang

Member
January 3, 2019 at 3:40 am

@Microformulation, there are quite a lot of articles on internet. Just google “dry oil”
OldPerry

Member
January 3, 2019 at 4:42 am

@Dtdang - Dry oil & wet oil are really made up marketing terms. And since marketers tend to use terms in the manner that best suits them, it’s fair to ask what you mean when you use the terms.

For example, this company uses the term “dry oil” when referring to their whole formula which contains water & glycerin among other things. https://www.cosmeticsandtoiletries.com/formulating/category/haircare/Verbs-Ghost-Dry-Oil-498916311.html
ngarayeva001

Member
January 3, 2019 at 12:53 pm

@Dtdang, I understand that you like vegetable oils and there is nothing wrong with it. But try emollients other than veg oils just for the sake of experiment. C12-15 Alkyl Benzoate + Caprylic/Capryc Triglycerides + a little bit of Petrolatum if you wish (it’s heavier than shea butter) for a face product for example. I think you will be surprised.
belassi

Member
January 3, 2019 at 4:50 pm

Esters! BASF have a body butter formula that blends Schercemol SHS (a heavy ester) with a very light ester, for a ‘cascade effect’.
ngarayeva001

Member
January 3, 2019 at 5:45 pm

BASF Emollients:

http://www.eurotradingonline.it/wp-content/uploads/2014/12/Emollient-spreadsheet-.pdf
Microformulation

Member
January 3, 2019 at 7:40 pm

Perry said:

@Dtdang - Dry oil & wet oil are really made up marketing terms. And since marketers tend to use terms in the manner that best suits them, it’s fair to ask what you mean when you use the terms.

Hence my questions. In all the classes I have taken and the articles I have read, the author/Presenter never tried to define a dichotomy between wet/dry oils. If you have a credible Journal Article (citations, credentialed author and not linked to the sale of products), I would love to read it if you can provide a link. I am really most interested in the Science over the Marketing.
Microformulation

Member
January 3, 2019 at 7:56 pm

Many times an oil is perceived to be dry due to spreadability. (Oils really aren’t “absorbing” into your skin to any significant extent). If you are looking at the esters and emollients, I believe that you can get more benefit by evaluating the oils based upon spreadability, much as BASF does.
Dtdang

Member
January 4, 2019 at 11:44 am

Thanks everyone