However, if you're thinking of a specific ingredient or product name that contains "quasi" in it, then you'll need to provide more details for me to tell you how to apply it.
For example, you might be thinking of:
* A Quasi-Drug: Some hair products, especially in Japan, are classified as "quasi-drugs." These contain medicinal ingredients and are applied according to the instructions on the specific product.
To give you a useful answer, please clarify:
* What is the full name of the product you're asking about?
* What are you trying to achieve with this product? (e.g., hair growth, dandruff control, color protection)
Once you provide more information, I can help you with the correct application method.