It’s so hard to say. We’ve packed 20g into each single use sachet, which should be enough for most users. However, if you have particularly thick, long or porous hair you might feel one sachet is simply not enough. If you’re worried there won’t be enough, we recommend you start your application on your ends and work your way up to the roots. Brushing or combing the product through your hair is also a great way to distribute the oils for a more even coverage.