The hair serum comes in travel size. The opening is covered well to avoid spillage. It has the smell of salon based serum, looks like oil base -- however it is water base in real is easy to use. With just one press, the amount is sufficient for my medium length hair. The smell is damn good and it stays for some time. The combination of floral and fresh makes us stay confident too. I applied only to mid to root and I have observed a healthier hair ever since rather than dry ends. It did not make our hair oily/sticky. A good to try product