There are many issues that can contribute to hair thinning or fallout (stress, lack of sleep, vitamin deficiencies, hormonal changes, increased DHT and miRNA22 levels, impaired microcirculation and poor scalp health). Frequently, it's a combination of two or more of these issues. That’s why a holistic, 360º approach to hair wellness is the most effective way to promote sustainable hair health. Our plant-based, multi-tasking GRO Hair Serum uses a combination of clinically-tested, vegan phyto-actives that work in tandem to help support a healthy and balanced follicular ecosystem while soothing the scalp and revitalizing hair roots. Free of toxic chemicals, carcinogens or harmful side effects, this cruelty-free, vegan hair serum is formulated with powerful phyto-actives shown in multiple clinical studies to increase the appearance of hair density while reducing signs of shedding to bring you thicker, fuller looking hair.* Safe for everyday use, with no known toxins or hormones 100% vegan and cruelty-free Fuller-looking hair in as soon as 90 days, with peak results around 120 Fill dropper full and apply directly to the scalp. Evenly disperse the serum and massage into scalp with your fingertips. Works best on dry or towel-dried hair. Can be applied morning or night. This is a leave-in product, style your hair normally. Apply daily for best results.