Dear pro  M. R. Mozafari 

may be tween 80

Thanks Mehdi for your answers,

Lecithin, as you said, is a very cheap ingredient for making liposomes and nanoliposomes. However, it is a mixture of different phospholipids, and as such, we will not have control on reproducibility of our research and / or manufacture.  

Dear

You can look at also to these papers: 

-Lecithin and Phospholipids - the Optimal Choice for Natural Cosmetics.  Schaffer

-History of Lecithin and Phospholipids . http://www.lipoidkosmetik.com/sites/default/files/files/Euro%20Cosmetics_9_2007.pdf

Regards

Marius

Dear Mohsen,

Many thanks for answering my question. Although we can use Tween (and Span) molecules to make niosomes, I need to make liposomes (phospholipid vesicles) and the product must be cost-effective.

Dear pro  M. R. Mozafari,

When it comes to phospholipids, I definitely suggest to look at Lipoid portfolio. Prices always differes according to a phospholipid source, if it's GMO or not, and phospholipid content of the ingredient. LIPOID H 100-3 is a very good option.  

Dear Jelena,

Many thanks for your message and answering my question with excellent suggestion. I had a look at their website: http://www.lipoid.com/en/lipoid

and remembered have used their sample phospholipids. Will contact them again in due time.

Have a great time