Hi Sofia,
Thank you for your question! 🥰
The guideline is to apply one single-use bottle (one dose) to the hair daily for 6-8 weeks or at least 3 times a week.
There are 10 doses in one package. 🫧
So if you use the product daily for, say, 7 weeks, you will need 49 doses, which means 5 packages 😊
If you use the product 3 times a week for 7 weeks, you will need 21 doses, so 3 packages would be sufficient, and there would be some left over!
I hope this clarifies the product usage recommendations and amounts 🩷
Have a wonderful week!