content_image/923118.jpg content_image/923121.jpg content_image/923120.jpg content_image/923119.jpg
<img src='content_image/923118.jpg'>

Comment: this carrier produces an excellent foam. Addi› tion of an active agent such as active steroids in low concen› trations of the order of 0.01 to 0.5% for example BMV at 0.12% w/w. together with a modulating agent should have minimal effect on the physical characteristics of the resultant foam. 

## Demonstration of Excellent Minimal Foams Produced with Two Different Surfactants Steareth 2 and Montanov 68 (Cetearyl Alcohol and Cetearyl Glucoside) 

The components of these waterless foamable compositions and the results of measurements of the properties of the result› ant foams and of the stability of the active agent are set our below: 

<img src='content_image/923121.jpg'>

-continued 

## Example 9 

<img src='content_image/923120.jpg'>

<img src='content_image/923119.jpg'>

Comments; the above formulations demonstrate the prepa› ration of excellent quality foams using two different non ionic surfactants and that the addition of buffer or active agent has no significant effect on foam quality. For foam, a propellant, which is a mixture of propane, butane and isobutane was added at 8% by weight of the total composition. 

## Examples of Foams Containing a Steroid Active Agent with Carbomer (Synthetic High Molecular Weight Crosslinked Polymers of Acrylic Acid) as the Polymeric Agent 

The components of these waterless foamable compositions and the results of measurements of the properties of the result› ant foams and of the stability of the active agent are set our below: 

Comments; the above formulations demonstrate the prepa› ration of excellent quality foam using Carbomer (synthetic high molecular weight crosslinked polymers of acrylic acid). Carbomer is acidic in nature and can stabilize an active agent alone or in combination with an organic base such as trietha- nolamine. For foam, a propellant, which is a mixture of pro› pane, butane and isobutane was added at 8% by weight of the total composition. 

-continued 

## Example 10 

